Welcoming Message – Rector of

I am very pleased to welcome all participants of the 2nd International Conference on Disaster Management (ICDM) 2020 in Padang, West . It is a great honoured for Universitas Andalas to host the 2nd ICDM. This year’s conference is co-hosted by Universiti Tenaga Nasional Malaysia, Universitas Pertahanan, Universitas Mataram, Universitas Dharma Andalas, Universitas Negeri Padang, Institut Teknologi Padang, Universitas Riau, and Politeknik Negeri Padang.

It has been eleven years since was struck by the Strong Earthquake on 30 September 2009. The disaster took more than one thousand casualties, damaged nearly 250.000 houses, and total damaged and losses were US$ 2.3 billion dollars where 80% came from infrastructure sectors. If we had a better disaster management system at that time, the above figure would have been lower. There are a lot of lessons that can be learned. Since then, we have conducted many activities in order to reduce disaster risk. The ICDM where world-class researcher and professionals share their latest research findings in Disaster Management is our contribution to reducing disaster risk. With the increase of our knowledge of disaster management then our vulnerability will become low.

I would like to send my gratitude to our keynote speakers: Ministry of Defence of the Republic of , Prof. Yasushi Sanada (Osaka University, Japan), Mohamed El Ghawad (Missouri of Science and Technology, USA), Prof. Louise Comfort (Pittsburgh University, USA), Nadine Sulkowski (University of Gloucestershire, UK), Prof. Iswandi Isman (ITB), Dr. Danny Hilman (LIPI), Prof. Wery Darta Taifur, Dr. Febrin Anas Ismail and Dr. dr. Andani Eka Putra from Andalas Univesity. I also would like to extend our great appreciation to our

2ND ICDM 2020 1 invited speakers, speakers and all participants. I believe the 2nd ICDM will be a great success and can accelerate Andalas University’s vision in becoming World Class University.

I appreciated all the members of the organizing committee at the Civil Engineering Department Andalas University who have worked so hard in preparing the conference. Special thanks also go to all the keynote speakers, authors, reviewers, and participants for their great contribution to this conference.

Kind regards,

Prof. Dr. Yuliandri Rector of Universitas Andalas

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Welcoming Message - Conference Chair

We are very pleased to introduce the Program Book of the 2nd International Conference on Disaster Management (ICDM) 2020 on 30 September – 1 October 2020 in Padang. This Conference is addressed to bring together and provide a platform to Researchers, Engineers, Scientists and Academicians as well as Industrial Professionals from all over the world to present, share and exchange their recent research on Disater Management.

There are more than 120 papers were submitted for presentation at the conference. This required the program to be organized in six parallel sessions, each on a specific theme, to provide each paper with sufficient time for presentation and to accommodate all of them within the overall time allocated.

The Keynote Speakers in this conference are: Ministry of Defence of the Republic of Indonesia, Prof. Yasushi Sanada (Osaka University, Japan), Mohamed El Ghawady (Missouri of Science and Technology, USA), Prof. Louise Comfort (Pittsburgh University, USA), Nadine Sulkowski (University of Gloucestershire, UK), Prof. Iswandi Isman (ITB), Dr. Danny Hilman (LIPI), Prof. Wery Darta Taifur, Dr. Febrin Anas Ismail and Dr. dr. Andani Eka Putra from Andalas Univesity. Thanks for all our Keynote speakers.

It is appropriate that we record our thanks to our members of the Organizing Committee, especially Prof. Bambang Istijono, Dr. Jati Sunaryati, Dr. Benny Hidayat, Dr. Masrilayanti PhD, Dr. Elsa Eka Putri, Dr. Sabril Haris, Dr. Taufika Ophiyandri, Rina Yuliet, MT, Nidiasari, MT and also our students and everyone who served for this conference. Without their hard work and support, the conference could not have been the success. We also acknowledge the authors themselves, without whose expert input there would have been no conference.

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We would also like to record our appreciation to the Government of West Sumatra and for our sponsor for the conference as well as our fellow team in assembling the conference proceedings. Their efforts made a great contribution to its success. Finally, we acknowledge the important supports from Prof. Yuliandri (Rector of Andalas University), Dr. Uyung Gatot S. Dinata (Centre of Research and Community Services, Andalas University), Prof. Ikhwana Elfitri (Dean of Engineering Faculty of Andalas University), and Dr.Eng. Junaidi (Head of Civil Engineering Department of Andalas University).

Thank you and have great conference.

Kind regards,

Prof. Jafril Tanjung

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Steering Board Chancellor of Andalas University Dean of the Andalas University Faculty of Engineering Taufika Ophiyandri, PhD (Chair of the Department of Civil Engineering Andalas University) Nurhamidah, Dr (Coordinator of Undergraduate Study Program, Civil Engineering Andalas University) Benny Hidayat, PhD (Magister Program Coordinator, Civil Engineering Andalas University) Zaidir, Prof. Dr. Eng (Doctoral Study Program Coordinator, Civil Engineering Andalas University) Bambang Istijono, Prof. Febrin Anas Ismail, Dr.Eng

Committee Chairperson: Prof. Dr. Eng. Jafril Tanjung, MT Deputy Chairperson: Prof. Fauzan, Dr. Eng Secretary: Masrilayanti, PhD Treasurer: Nidiasari, MT

Secretariat: Jati Sunaryati, PhD Sabril Haris HG,PhD

Event: Yervi Hesna, MT Elsa Eka Putri, PhD

Equipment and facilities: Rina Yuliet, MT Bayu Martanto Adji, PhD

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Technical Committee Willy Kurniawan Hafiz Oktaufiq March Yandri Aufa Agsadilla Zaimi Keny Azzukhruf Syahda K. Maysha Nur Syafira Muhammad Fakhri Salim Muhammad Handika Muhammad Yusron Oktria Alviony Puti Andam Suri

Master of Ceremony Muhammad Rafky Kautsar Mutiara Atila

Scientific Committee Abdul Hakam, Prof. PhD (Andalas University) Bambang Istijono, Prof. Dr. (Andalas University) Febrin Anas ismail, Dr.Eng. (Andalas University) Jafril Tanjung, Prof. Dr.Eng. (Andalas University) Zaidir, Prof. Dr.Eng (Andalas University) Wirsma Arif Harahap, Dr. (Andalas University) Arina Widya Murni, Dr. Andalas University Werry Darta Taiful, Prof. Dr. (Andalas University) Iswandi Imran, Prof. Ph.D (Bandung Institute of Technology) I Wayan Segara, Prof. Ph.D (Bandung Institute of Technology) Didi S Agustawijaya, Prof. PhD. (Mataram University) Deddi Prima Putra, Prof. Dr. (Universitas Dharma Andalas) Henny Lucida, Prof. Dr. (Andalas University)

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Andani Eka Putra, Dr. (Andalas University) Yevri Zulfiqar, Dr. (Andalas University) Gasim Hayder Ahmed Salih, Dr. (University Tenaga Malaysia) Yasushi Sanada, Prof., Dr.Eng. (Osaka University)

Editors Jafril Tanjung, Prof. Dr. Eng (Universitas Andalas, Indonesia, Editor in Chief) Prof. Louise Comfort, Ph.D, (Pittsburgh University, USA) Agusril, Ph.D (Universiti Tenaga Nasional, Malaysia) Benny Hidayat, Ph.D (Universitas Andalas, Indonesia) Jati Sunaryati, Ph.D (Universitas Andalas, Indonesia) Masrilayanti, Ph.D (Universitas Andalas, Indonesia) Saravanan, PhD (National Institute of Technology Tiruchirappalli, India) Alyaa Shatti Mohan Alhamaidah, PhD (Basrah University, Iraq) Prof. Yasushi Sanada (Osaka Univ) Jauhar Fajrin, PhD (Universitas Mataram, Indonesia) Arina Widya Murni, Dr. dr. Sp.PD, K-Psi, FINASI (Universitas Andalas, Indonesia)

Reviewers Abdul Hakam, Prof. PhD. (Andalas University) Ahmad Suraji, Ph.D (Andalas University) Bambang Istijono, Prof. Dr. (Andalas University) Bayu Martanto, Ph.D (Andalas University) Benny Hidayat, PhD (Andalas University) Darwizal Daoed, Dr. (Andalas University) Elsa Eka Putri, PhD (Andalas University) Prof. Fauzan, Dr.Eng. (Andalas University) Febrin Anas Ismail, Dr.Eng. (Andalas University) Jafril Tanjung, Prof. Dr.Eng. (Andalas University) Jati Sunaryati, Ph.D. (Andalas University)

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Junaidi, Dr.Eng (Andalas University) Mas Mera, Ph.D. (Andalas University) Masrilayanti, PhD (Andalas University) Nurhamidah, Dr. (Andalas University) Purnawan, PhD. (Andalas University) Rendy Thamrin, Dr.Eng. (Andalas University) Rudy Kurniawan, Dr. (Andalas University) Sabril Haris, PhD (Andalas University) Taufika Ophiyandri, Ph.D (Andalas University) Yosritzal, PhD (Andalas University) Yossyafra, PhD. (Andalas University) Zaidir, Prof. Dr.Eng. (Andalas University) Werry Darta Taiful, Prof, Dr. (Andalas University) Arina Widya Murni, Dr.I (Andalas University) Reni Suryanita, PhD. (Riau University) Sigit Sutikno, Dr.Eng. (Riau University) Monita Olivia, PhD. (Riau University) Maidiawati, Dr.Eng. (Padang Institute of Technology) Harnedi Maizir, PhD. (Sekolah Tinggi Teknologi Pekanbaru) Deddi Prima Putra, Prof. Dr. (Dharma Andalas University) Dodi Devianto, Dr. (Dharma Andalas University) Jauhar Fajrin, PhD (Mataram University) Ni Nyoman Kencanawati, PhD (Mataram University) Eko Pradjoko, PhD. (Mataram University) M Riendra, dr. (Andalas University) Beni Indra, dr (Andalas University) Ulya Uti Fasrini, dr. (Andalas University) Hendra Herizal, dr (Andalas University) Henny Lucida, Prof. Dr. (Andalas University) Dodi Devianto, Dr. (Dharma Andalas University) Revalin Herdianto, PhD (Padang State Polytechnic) Al Mahfoodh Ali Najah Ahmed, Dr. (University Tenaga Malaysia) Agusril, PhD. (University Tenaga Malaysia)

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Yulvi Zaika, Dr.Eng. (Universitas Brawijaya) Siti Aisyah Nurjannah, Dr., ST, MT (Universitas Sriwijaya) Table of Contents APPLICATION OF POROUS CONCRETE TO RESOLVE FLOOD ON THE ROADS ...... 26 A B Utomo, L F Hidayatiningrum, and B Dhanardono ...... 26 IMPACT ON CONSTRUCTION PRODUCTIVITY BASED ON THE MINISTER OF HEALTH’S DECREE IN INDONESIA ...... 26 R Irfanto ...... 26 MEASUREMENT ANALYSIS OF THE LEVEL OF HOUSEHOLD PREPAREDNESS FOR FACING LANDSLIDE IN BOGOR REGENCY .. 27 P D Saputra1, C Rahmawati2, K S H Purnomo3, E Larosa4 , Nurhasanah1 27 THE DEVELOPMENT OF THE MODEL OF INFLUENCE OF SOCIODEMOGRAPHIC CHARACTERISTICS AND DISASTER EXPERIENCE TOWARD HOUSEHOLD PREPAREDNESS FOR FACING LANDSLIDE IN BOGOR REGENCY ...... 28 P D Saputra1, C Rahmawati2, P Karuniakhalida3, K S H Purnomo4, E Larosa5 ...... 28 CASE STUDY: SIGNIFICANT FACTORS IN HAZARD AND VULNERABILITY ASSESSMENTS IN FLOOD MITIGATION IN PADANG CITY ...... 29 Andy Ikhvan1,2 and Mas Mera3 ...... 29 EVALUATING THE QUALITY OF SERVICE FOR BUS PERFORMANCE IN ALOR SETAR ...... 30 Shuhairy Norhisham1, 2, Muhammad Fadhlullah Abu Bakar1, Agusril Syamsir1, Nur'atiah Zaini1, Nur Lyana Baharin3 , Nur Syafiqah Mohd Shkuri4, Noorazizun Mohd Saad5 ...... 30

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THE ASSESSMENT OF QUALITY SERVICES ON BUS PERFORMANCE USING EXPERT SYSTEMS IN POST CATASTROPHE EVENT ...... 31 Shuhairy Norhisham1, 2, Muhammad Fadhlullah Abu Bakar1, Agusril Syamsir1, Nur'atiah Zaini1, Nur Lyana Baharin3 , Nur Syafiqah Mohd Shkuri4, Noorazizun Mohd Saad5 ...... 31 IDENTIFICATION OF CONSTRAINT FACTORS ON THE CONTRACT QUALITY PLAN FOR THE BATANG KURANJI SEDIMENT CONTROL DEVELOPMENT PROJECT, PADANG CITY ...... 32 Wendi Boy1, Rafki Imani2 , and Nisa Tri Noviani2 ...... 32 POTENTIAL ENVIRONMENT AND SOCIO-ECONOMIC IMPACT OF BIOFUEL PRODUCTION IN MALAYSIA: A PRELIMINARY REVIEW . 33 Dhurgaashini Mohan1, Yusuf Essam1, Herda Yati Binti Katman1, Ali Najah Ahmed2, and Abd Halim Shamsuddin3 ...... 33 LANDSLIDE SUSCEPTIBILITY ASSESSMENT USING FREQUENCY RATIO TECHNIQUE – A CASE STUDY OF NH67 ROAD CORRIDOR IN THE NILGIRIS DISTRICT, TAMILNADU, INDIA ...... 34 Subbarayan Saravanan1, Bambang Istijono2, Jesudasan Jacinth Jennifer3, Devanantham Abijith4 and Sivaranjani S5 ...... 34 INVESTIGATION THE EFFECT OF CENTRAL OPENINGS IN THE WEB ON THE BEHAVIOUR OF THE PLATE GIRDERS ...... 35 Dr. Mazin A. Al-Mazini, Dr. Alyaa Alhamaidah, Dr. Mustafa Shareef Zewair ...... 35 BEYOND THE TSUNAMI EFFECT: TOWARDS AN UNDERSTANDING OF THE SPECIAL AUTONOMY BUDGET POLICY IN REDUCING POVERTY IN ACEH ...... 35 Yuliandri1 , Muhammad Ichsan Kabullah2,3 , Khairul Fahmi1, Feri Amsari1,3 , M. Nurul Fajri4 ...... 35 DISASTER RISK REDUCTION AND MANAGEMENT FRAMEWORK FOR KENNON ROAD ...... 36 Joseph Rei Mark Co ...... 36

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CASE STUDY: VERTICAL DISTRIBUTIONS OF BOTH TEMPERATURE AND DISSOLVED OXYGEN IN LAKE DIATAS INDONESIA ...... 37 Tivany Edwin1, Mas Mera2, Puti Sri Komala3, Denny Helard3, Vera Surtia Bachtiar3 ...... 37 PERFORMANCE EVALUATION OF DYNAMIC PULLEY DAMPER SYSTEM FOR INSTALLATION ANGLE ...... 38 Ryo Majima1, Kazuhiro Hayashi2, Taiki Saito3 ...... 38 SEISMIC PERFORMANCE OF EARTHQUAKE RESISTANT SIMPLE RESIDENTIAL CONFINED MASONRY HOUSE STRUCTURE BASED ON PERMEN PUPR NO.5 OF 2016 SPECIFICATION ...... 39 Angga Arief Gumilang S, Muhammad Rusli ...... 39 ANALYSIS OF THE DROUGHT DISTRIBUTION OF THE PALMER DROUGHT SEVERITY INDEX (PDSI) METHOD IN THE IRRIGATION JURANG SATE ON LOMBOK RIVER BASIN ...... 39 S C Noviadi ...... 39 STUDY ON ROBUSTNESS OF REBOUND HAMMER AND ULTRASONIC PULSE VELOCITY MEASUREMENT IN SEVERAL CONCRETE DAMAGE LEVELS ...... 40 Ni Nyoman Kencanawati, Akmaluddin, Rima Marlitasari, Gazi Paedullah ...... 40 CASE STUDY: ESTIMATING THE OCCURRENCE OF SEA WATER INTRUSION USING GEOELECTRICAL METHOD IN PANGANDARAN DISTRICT ...... 41 R. S. Yuliatmoko, T. Kurniawan, B. Sunardi, T. Hardy, A. A. Martha, Supriyanto Rohadi, Nelly Florida Riama ...... 41 FINANCIAL PERFORMANCE AND IMPACTS OF VILLAGE FUND ON POST DISASTER RURAL ECONOMIC DEVELOPMENT IN PIDIE JAYA-INDONESIA ...... 42 R M Iqbal1, A Nugroho1,3, Fajril1, H I Martiastuti2, L Nonita2, K Fadhiela442

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TSUNAMI-INDUCED INUNDATION ON THE COAST OF PALU CITY 43 Rizki Robbi Rahman Alam1, Mohammad Bagus Adityawan2, Mohammad Farid3, Asrini Chrysanti4, Widyaningtias4, Mipi Ananta Kusuma5 ...... 43 MANAGEMENT OF STUDENT LEARNING WITH INFORMATION TECHNOLOGY DURING THE COVID-19PANDEMIC ...... 44 Sri Siswati, Yolanda Safitri ...... 44 ANALYSIS OF EROSION RISK ON SUB-WATERSHED ARJASA IN JEMBER REGENCY ...... 44 Yaumil Zahro Fadila1, Idah Andriyani2, Dwi Putra Ardani2 ...... 44 PREFERENCE SYSTEM FOR GUIDED AND SELECTION OF IMPROVEMENT TYPE AND ASSESSMENT OF SOIL BASED ON EXPERT OPINION WITH WEIGHTED SYSTEM ...... 45 Tri Basuki Kurniawan1, Fathoni Usman1, Rohayu Che Omar1, and Khairul Amri Sanusi2 ...... 45 INVESTIGATION OF UNSTABLE SOIL STABILIZED USING FLY-ASH CEMENT GROUTING ...... 46 Kavindu Jayasinghe1, Vivi Anggraini2, Agusril Syamsir3, Nanda 4 ...... 46 FLOOD HYDROGRAPH SIMULATION TO ESTIMATE PEAK DISCHARGE IN CILIWUNG RIVER BASIN ...... 47 M I Pratama1, F I W Rohmat2, M Farid2,3, M B Adityawan2, A A Kuntoro4 and I R Moe5 ...... 47 SUSTAINABILITY OF THE CLIMATE VILLAGE PROGRAM TO PREVENT THE IMPACT OF CLIMATE CHANGE ON WATER SUPPLY AND SANITATION: A PERSPECTIVE FROM THE PESTLE ANALYSIS ...... 48 Putri Nilam Sari1, Aria Gusti1, Nofriya2, Ismike Suci3, Mahesa Pratama1 48 NORMALIZING THE RIVER OF CISANGKUY TO REDUCE THE FLOOD RISK IN THE FUTURE ...... 48 Abdul Chalid1, Bagus Prasetya2, Ivan Aliyatul Humam3, Muhammad Luthfi Assidik4 ...... 48

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TSUNAMI EVACUATION GEOGRAPHIC INFORMATION SYSTEM (GIS) EDUCATION AS DISASTER MITIGATION ...... 49 Sularno, Dio Prima Mulya, Renita Astri ...... 49 OPTIMUM HEIGHT OF THE RETAINING GRAVITY WALL ...... 50 Fathol Bari1, Julita Andrini Repadi1, Abdul Hakam2, Febrin Anas Ismail2, Andriani2 ...... 50 ESTABLISHING TSUNAMI HAZARD ZONE IN PASIR JAMBAK SUB- DISTRICT, IN PADANG, INDONESIA ...... 51 Leli Honesti, Muhd Zaimi Abd Majid, Meli Muchlian ...... 51 GEOTECHNICAL PROPERTIES OF UNPROCESSED SOIL FROM ABANDONED MAMUT MINE IN SABAH, BORNEO ...... 52 Jodin Makinda1,2, Khairul Anuar Kassim1, Chong Chun Siong3, Muttaqa Uba Zango1, Abubakar Sadiq Muhammed1 ...... 52 DELINEATION OF FLASH FLOOD HAZARD ZONES BASED ON MORPHOMETRIC PARAMETERS USING GIS TECHNIQUE IN UPPER LEMATANG SUB-WATERSHED ...... 53 A Dinata, F Dhiniati, L E Diansari ...... 53 UNDERSTANDING IMPORTANT VARIABLES FOR MODE PREFERENCE; A CASE STUDY OF INTERCITY LAND MODE...... 53 Angelalia Roza1,2, Mohamed Rehan Karim2, Aditia Nugraha Rusli3, Andi Mulya Rusli4 ...... 53 DISASTER RESILIENCE MEASUREMENT IN PADANG'S HOTEL SECTOR ...... 54 Prima Fithri, Zakia Aliffiana Ulfa ...... 54 LOCAL AND INDIGENOUS KNOWLEDGE AND ITS IMPORTANCE TO SUBSISTENCE FARMERS TO REDUCE THE RISK OF FOOD SECURITY IN THE GAMBIA ...... 55 Edward Mendy1, Syamsidik1,2, and Khairul Munadi1,2 ...... 55

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URBAN POVERTY RESPONSE MANAGEMENT DURING PANDEMIC USING GEOGRAPHIC INFORMATION SYSTEM ...... 56 Hamim S A1, Usman F2, Gumano H N1, Jamil F3 ...... 56 THE COMMUNITY CAPACITY TO RESPOND TO EARTHQUAKES AND TSUNAMI THREAT IN AIR TAWAR BARAT SUB-DISTRICT, PADANG CITY, WEST SUMATRA, INDONESIA ...... 57 R Imani, U D Arman, A Sari ...... 57 IMPACT OF PANDEMIC COVID-19 FOR VARIOUS SECTORS IN INDONESIA 2020: EDUCATION, HEALTH, AND INDUSTRIAL ...... 58 R Salam1, C Rahmawati2, A A Pramutri3, M L Oktarianto4, and E Larosa5 ...... 58 THE PREPAREDNESS OF COMMUNITIES AROUND CILACAP INDUSTRIAL COMPANIES IN FACING TSUNAMI TREATS ...... 59 Faisol Abdul Kharis, IDK Kerta Widana, Arief Budiarto ...... 59 ESTIMATING DETERIORATION RATE OF A BRIDGE USING CHANGES IN NATURAL FREQUENCIES ...... 59 Maizuar, Said Jalalul Akbar ...... 59 STUDY ON BUILDING PERMIT AWARENESS IN WEST SUMATRA, INDONESIA ...... 60 Eka Juliafad1,2, Totoh Andayono1 ...... 60 MULTI-HAZARD ASSESSMENT AND SHELTER ALLOCATION IN DKI JAKARTA: AN INITIAL STUDY ...... 61 Fritz Harland Sihombing ...... 61 WOMEN EMPOWERMENT IN POST- DISASTER RECOVERY AFTER 2018 TSUNAMI IN SUMUR REGENCY PANDEGLANG DISTRICT .... 61 N I Rahmatika, S K Sakti, A Boediarto ...... 61 APPLICATIONS OF CONSTRUCTED WETLANDS AND HYDROPONIC SYSTEMS IN PHYTOREMEDIATION OF WASTEWATER ...... 62 H M Mustafa1, G Hayder2,3, Mahmud Iwan Solihin5, Rashid A Saeed6 ... 62

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SLOPE STABILITY ANALYSIS FOR LANDSLIDE MITIGATION IN SATUI, TANAH BUMBU, SOUTH ...... 63 A’isyah Salimah...... 63 SEISMIC VULNERABILITY ASSESSMENT OF THREE SPANS GIRDER BRIDGE IN KURANJI – PADANG BY DEVELOPING FRAGILITY CURVE ...... 64 Masrilayanti, Rahmadona, and Ruddy Kurniawan ...... 64 MULTI HAZARD PERCEPTION DURING COVID-19: EVIDENCES FROM RURAL COMMUNITIES IN WEST SUMATRA, INDONESIA ... 65 A U Fitrah1, Mahdi2, L Triana2, A Nugroho3,4 ...... 65 CLIMATE-SMART AGRICULTURE: MITIGATION OF LANDSLIDES AND INCREASING OF FARMERS' HOUSEHOLD FOOD SECURITY .. 65 S Jumiyati1, A Hadid2, B Toknok3, R Nurdin4, T A Paramitha5 ...... 65 SEISMIC ASSESSMENT OF IRREGULARITIES IN STEEL SPECIAL MOMENT RESISTING FRAME WITH ASYMMETRIC-PLAN BUILDING (CASE STUDY: GEDUNG D – UNIVERSITAS DHARMA ANDALAS) . 66 Ridho Aidil Fitrah1, Deni Irda Mazni1, Welly Pratiwi1, Zev Al Jauhari2 .... 66 AREA BASED TSUNAMI RISK ASSESSMENT IN WEST ACEH AND NAGAN RAYA REGENCIES ...... 67 Hana Qurrota A’yun1, Vanya Komara Putri1, William Aditya Pramana1, Asrini Chrysanti2, Mohammad Bagus Adityawan3, Mohammad Farid4 .. 67 ASSESSMENT OF ADAPTIVE CAPACITY TO SEA LEVEL RISE USING OPEN-LOOP SYSTEM, CASE STUDY: CIREBON AND PANGANDARAN ...... 68 Isnan Fauzi1, Randy F Ritonga1, Ivonne M Radjawane2, and Hamzah Latief2 ...... 68

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EVALUATION OF MECHANICAL AND STRUCTURAL PROPERTIES ON THE DEGRADATION OF TREATED AND UNTREATED COIR, JUTE AND KENAF NETTINGS ...... 69 Vivi Anggraini1, Agusril Syamsir2, Shaikh Muhammad Mubin3, Abdulmalek Mohammed Hussein Sofan4, Jihan Melasari5, Rita Nasmirayanti6 ...... 69 DEVELOPMENT OF FLOOD INUNDATION MAPS AS AN INITIAL ASSESSMENT FOR FLOOD DISASTER MITIGATION - A CASE STUDY OF SELAGAN RIVER BASIN ...... 70 Robi Fernando1, Agung Bhakti Utama1, Galih Adya Taurano1, Liza Riani2, Idham Riyando Moe3 ...... 70 PREFACE OF DESTRUCTIVE M<5 EARTHQUAKES IN JAVA ISLAND, 2015-2019 ...... 71 Admiral Musa Julius1,2, Daryono2, I Dewa Ketut Kerta Widana1 ...... 71 RELATIONSHIP BETWEEN EXTREME RAINFALL AND DESIGN FLOOD-DISCHARGE OF THE CILIWUNG RIVERM ...... 72 Farid1,4, D Saputra2, T R Maitsa2, T N A Kesuma3, A A Kuntoro1,5, A Chrysanti1 ...... 72 A COMPARATIVE STUDY ON BRIDGE ROAD WORKS METHODS FOR FLOOD TIDE MANAGEMENT IN AGATS-SUATOR PROJECT ...... 73 Hans Dermawan, Widsri Palamba, Enma Sebayang ...... 73 FEASIBILITY STUDY ON USE OF SOLAR ENERGY IN MALAYSIA’S LIGHT RAIL TRANSIT ...... 73 Wan Azdi Wan Omar1, Gasim Hayder2,3, Ali Aldrees4, Abubakr Taha Bakheit Taha4 ...... 73 UTILIZATION OF BIOFLOC ON FLOOD & DRAIN AQUAPONIC SYSTEMS TO IMPROVE WATER QUALITY (AMMONIA, NITRITE, NITRATE) ...... 74 Deswati1, Safni1, Elsa Yani1, Khairiyah1, Refinel1, Hilfi Pardi2 ...... 74

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ANALYSIS OF WATER AVAILABILITY AND PLANTING INDEX IN DAMS IN BEDADUNG WATERSHED ...... 75 Bintang Candra Jatmiko ...... 75 EFFECT OF LAND CRITICALITY ON NUTRIENT AVAILABILITY (CASE STUDY OF DINOYO SUB WATERSHED, JEMBER REGENCY, INDONESIA) ...... 76 Putri Tunjung Sari1, Indarto1, Mohammad Wawan Sujarwo 1, and Muhammad Rizal Romadhon2 ...... 76 THE ANALYSIS OF CORRELATION BETWEEN REGIME’S RIVER COEFFICIENT AND RUNOFF COEFFICIENT (CASE STUDY IN CATCHMENT AREAS OF SIDUTAN AND REAK) ...... 77 Salehudin, Lalu Wirahman W, Hasyim, Rohani ...... 77 A REVIEW ON EXPERIMENTAL AND NUMERICAL STUDIES OF GLASS FIBRE REINFORCED POLYMER (GFRP) STRIPS STRENGTHENED REINFORCED CONCRETE (RC) SLAB SUBJECTED TO LOW VELOCITY IMPACT ...... 78 Shaikh Muhammad Mubin1, Agusril Syamsir2, Daud Mohamad3 ...... 78 REVIEW OF INTERNAL FORCE MAGNITUDE AT THE 5-FLOOR HOSPITAL IN NORTH PROVINCE BETWEEN SNI 1726- 2012 AND SNI 1726-2019 WITH RESPONSE SPECTRUM (2D) METHOD ...... 79 Daniel Jesayanto Jaya1, Shilmi Arifah2, Slamet Widodo3 ...... 79 ANALYSIS OF CLEAN WATER DISTRIBUTION SYSTEMS USING EPANET 2.0 (CASE STUDY OF UMA SIMA VILLAGE, SUMBAWA REGENCY) ...... 80 E Kurniati, Kamariah, T Susilawati ...... 80 BAMBOO-BASED TEMPORARY HOUSE FOR POST DISASTER RELIEF: A CONCEPTUAL DESIGN AND PROTOTYPE BUILT AFTER LOMBOK EARTHQUAKE 2018 ...... 80 J Fajrin, IW Sugiartha, M Eniarti, and Pathurahman ...... 80

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DESCRIPTIVE STUDY OF BEHAVIOR IN USING PERSONAL PROTECTIVE EQUIPMENT (PPE) TO PREVENT COVID-19 FOR PRIMARY HEALTH CARE OFFICERS IN PADANG CITY ...... 81 Ayulia Fardila Sari ZA, Syafrawati and Laa Tania Fizikriy ...... 81 PASMINA: ARTS-BASED TSUNAMI EDUCATION WITH AN ISLAMIC THEME ADOPTED FROM NANDONG SMONG ...... 82 Imam Maulana1, Lilla Raswita1, Septia Karlina2, Zahratunnisa3, Mohd. Hafizh Al Mukarram3, Rina Suryani Oktari1,4 ...... 82 DESIGN ACCELERATION RESPONSE SPECTRA IN RIAU PROVINCE BASED ON THE SNI 1726:2019, AS A REVISION OF SNI 1726:2012 METHODS ...... 83 Zev Al Jauhari1, Armada1, Faisal Ananda1, Ridho Aidil Fitrah2 ...... 83 LOCAL RISK MANAGERS’ AND DISASTER VOLUNTEERS’ AWARENESS OF, ATTITUDES TOWARD, AND INTENTION TO USE A LOCAL GOVERNMENT-DEVELOPED DISASTER INFORMATION SYSTEM: A CASE STUDY OF SIKK MAGELANG...... 84 KP Sari1,3, H Kanegae1, and M Roychani2 ...... 84 THE BAYESIAN MODEL OF COVID-19 CASE FATALITY RATE PROPORTION ON PROVINCES IN INDONESIA ...... 85 Dodi Devianto1,2, Anis Nur Afifah2, Ika Kurnia Febrianti3 ...... 85 UTILIZATION OF VOLCANIC ASHES FOR GEOPOLYMER BASED ON ALKALINE ACTIVATOR AND SOLID-LIQUID RATIO ...... 85 D J Ilham1, U Anggarini2, J Juniarti1 and D Fiantis1 ...... 85 EARLY DETECTION OF THE DISTRIBUTION OF HEAT STRESS HAZARDS FOR SUSTAINABLE LAND USE PLANNING IN PADANG CITY ...... 86 Dwi Marsiska Driptufany, Fajrin ...... 86 ANALYSIS OF PEDESTRIAN CROSSING NEEDS IN THE TRANSMART SHOPPING CENTER AREA IN PADANG CITY ...... 87 Bayu Budi Irawan, Ridho Aidil Fitrah, Dwi Intan Suci Rahmadani ...... 87

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CHANGES IN ANAK KRAKATAU LANDSCAPE AFTER DECEMBER 2018 ERUPTION ...... 88 F I Ginting1, Gusnidar1, M Nelson2, Rudiyanto3, B Minasny4 and D Fiantis1 ...... 88 ANTIBACTERIAL ACTIVITIES TEST AND GARGARISM FORMULATION OF CATECHINS WITH BETEL LEAF INFUSION (PIPER BETLE L.) ...... 89 Sefrianita Kamal, Rustini, Rezki Mulia ...... 89 TSUNAMI RUN-UP ASSESSMENT TOWARD HUMAN LIVES AROUND MEURAXA OF ACEH, INDONESIA ...... 89 T M Rasyif1 and Syamsidik2,3 ...... 89 A MULTI-OBJECTIVE OPTIMISATION MODEL FOR RESERVOIR OPERATION DURING DROUGHTS ...... 90 Syamsul Hidayat, Humairo Saidah, M Bagus Budianto, Bambang Harianto, and I B Giri Putra...... 90 THE IMPACT OF MANDALIKA TOURISM AREA DEVELOPMENT ON THE KUTA VILLAGE, CENTER LOMBOK, INDONESIA BASED ON TSUNAMI HAZARD ANALYSIS POINT OF VIEW ...... 91 E Pradjoko1, A Setiawan2, L Wardani1, and Hartana1 ...... 91 GEOGRAPHICAL INFORMATION SYSTEM FOR DISASTER RELIEF DISTRIBUTION ON NATURAL DISASTER RESPONSE ...... 92 Difana Meilani, Rika Ampuh Hadiguna, Celya Ayu Pradipta...... 92 RESPONDING TO UNCERTAINTY DURING COVID ...... 93 Septi Mayang Sarry, Nila Anggreiny, Mafaza ...... 93 EFFECT OF COMPETENCE AND QUALITY OF HUMAN RESOURCES ON CONSTRUCTION PROJECT PERFORMANCE ...... 93 Miftahul Huda ...... 93

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PROPERTY DEVELOPMENT RISK MANAGEMENT PROCESS MODEL ...... 94 I Wayan Muka1, Wendi Boy2 ...... 94 GEOSPATIAL ANALYSIS IN MANAGING MEDICAL FACILITIES FOR COMBATING DISASTER TRIGGERED BY THE COVID-19 PANDEMIC ...... 95 Fathoni Usman1, Sumi Amariena Hamim2, Hendry Natanael Gumano2 and Fikri Jamil3...... 95 THE ROLE OF LOCAL DISASTER RELIEF AGENCY TO INFLUENCING LOCAL GOVERNMENT TO MAKE NEW SPATIAL MANAGEMENT LOCAL REGULATION IN PANDEGLANG REGENCY ...... 96 Anwar Kurniadi, Siswo Hadi Sumantri ...... 96 KNOWLEDGE AND ATTITUDES OF THE BNPB LEADERS TOWARDS NUCLEAR DISASTER THREAT IN INDONESIA: EXPECTATION AND REALITY ...... 97 IDK Kerta Widana, Dewi Apriliani, Samsul Maarif, Khairunnisa Adri ...... 97 SHORT TRAINING TO IMPROVE KNOWLEDGE OF DISASTER MANAGEMENT ON BASIC LEVEL: A BEFORE AND AFTER STUDY . 98 Jazmi Adlan Bohari, IDK Kerta Widana ...... 98 CIVIL AND MILLITARY COOPERATION ON 2018 LOMBOK EARTHQUAKE DISASTER EMERGENCY RESPONSE ...... 99 Dina Subagia, Deny WidI Anggoro, Syamsul Maarif, Sugeng Tri Utomo 99 RESILIENCE: A NEW CONCEPTS IN DEALING WITH HYDRO- METEOROLOGICAL DISASTER AND IT’S APPLICATION AT THE PROVINCIAL LEVEL IN INDONESIA ...... 100 Adi Subiyanto, IDK Kerta Widana, Admiral Musa Julius ...... 100 COMPARATIVE STUDY ON USING OF SNI 1726-2012 AND SNI 1726-2019 FOR CALCULATING OF INTERNAL FORCE MAGNITUDE OF LECTURE BUILDING IN D.I. YOGYAKARTA PROVINCE ...... 101 Muchtar Agus Tri Windarta1, Daniel Jesayanto Jaya2, Slamet Widodo2101

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USING A TUNED-INERTO-VISCOUS-HYSTERETIC-DAMPER (TIVHD) FOR VIBRATION SUPPRESSION IN MULTI-STOREY BUILDING STRUCTURES ...... 101 P Deastra, D J Wagg, N D Sims...... 101 THE IMPLEMENTATION OF REPRODUCTIVE HEALTH PROGRAM DURING THE FLASH FLOOD DISASTER IN SIJUNJUNG, WEST SUMATRA IN 2018 ...... 102 Dien Gusta Anggraini Nursal1,Aprianty2, and Susan Pestariangin Halawa1 ...... 102 SOIL CHARACTERISTICS MAPPING PAGAR ALAM CITY (STUDY CASE: SOIL CHARACTERISTICS IN NORTH PAGARALAM SUB- DISTRICT) ...... 103 Sati Hery Permana1, Gumilar M. sang2, and Tarmizi1 ...... 103 SUSTAINABLE AFFORDBLE HOUSING DELIVERY SYSTEM (HDS); A COMPARATIVE STUDY OF INDONESIA AND UNITED KINGDOM BEST PRACTICES ...... 104 Mutia Putri Monika1, Akhmad Suraji2, Jennifer Hardi3, Rudy Ferial2 .... 104 SHAKING TABLE TESTS TO INVESTIGATE THE INFLUENCE OF GRAIN SHAPE ON THE EXCESS PORE WATER PRESSURE ...... 105 Muhajirah ...... 105 STUDY OF GROIN STRUCTURES EFFECTIVENESS FOR AGAINST ABRASION IN PADANG BEACH ...... 106 Dalrino,Revalin Herdianto,Daniel Blesson Silitonga ...... 106 INTERRELATIONS OF RAINFALL AND MORPHOMETRIC CHARACTERISTICS IN GENERATING GEOLOGICAL DISASTERS OF KURANJI WATERSHED PADANG CITY ...... 107 Teguh Haria Aditia Putra1, Bambang Istijono2, Aprisal3, Bujang Rusman3, Andriani2, Abdul Hakam2, Adrinal3 and Taufika Ophiyandri2 ...... 107

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THE PERFORMANCE SERVICE EVALUATION OF SIBINUANG REGULAR PASSENGER TRAIN ...... 108 Bayu Martanto Adji1, Sri Wahyuni2, Yosritzal1, Asthra Fashalli3 ...... 108 MOBILIZATION OF SOCIAL CAPITAL DURING POST HAIYAN IN THE TWO MUNICIPALITIES OF LEYTE PROVINCE, PHILIPPINES...... 109 Marlon de Luna Era ...... 109 IMPLEMENTATION EMPOWERING COMMUNITIES IN SMALL SCALE IRRIGATION PROJECTS DURING COVID 19 PANDEMIC IN PADANG AND PADANG PARIAMAN DISTRICS ...... 109 Bayu Martanto Adji, Bambang Istijono, Taufika Ophyandri, Benny HIdayat ...... 109 MITIGATION OF LEVEL CROSSING HANDLINGS ON THE THE RAILWAY LINE, PADANG - PULAU AIE CORRIDOR ...... 110 Bayu Martanto Adji1, Muhamad Anshari2, Purnawan1...... 110 ANALYSIS OF THE CONSTRUCTION SERVICE PROVIDER PERFORMANCE DURING THE COVID-19 PANDEMIC IN SUMATERA BARAT PROVINCE, INDONESIA ...... 111 Dede Oktria Syaferi, Benny Hidayat ...... 111 TRAPEZOIDAL CORRUGATED PLATE BEHAVIOR ON STEEL PLATE SHEAR WALL ...... 112 Nidiasari, Sabril Haris, and Jati Sunaryati ...... 112 THE STUDY OF SPLIT MASTIC ASPHALT PAVEMENT WITH LATEX ADDITION FOR FLOODED ROAD ...... 112 Elsa Eka Putri ...... 112 LIQUEFACTION DISASTER MITIGATION ON RAILWAY CORRIDORS IN PADANG CITY, WEST SUMATRA ...... 113 Bayu Martanto Adji2, Bambang Istijono1, Abdul Hakam1, Andriani2, Satriawan2, and Muhammad Anshari3 ...... 113

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ANALYSIS OF LANDSLIDE POTENTIAL DUE TO CHANGES IN LAND USE/LAND COVER AT THE KURANJI WATERSHED, PADANG USING THE NORMALIZED DIFFERENCE BUILT-UP INDEX (NDBI) ...... 114 Andriani1, Geri Despita Putra2, Salsabila Ramadhani2, Ismael2, Hendri Gusti Putra1 ...... 114 ANALYTICAL FRAGILITY CURVE DEVELOPMENT OF MATERNITY AND CHILDREN’S M. DJAMIL HOSPITAL BUILDING PADANG DUE TO EARTHQUAKE AND TSUNAMI ...... 115 Aimuthia Citra Utami, Ruddy Kurniawan, Fauzan ...... 115 STUDY OF MOTORCYCLE POSITIONS DISTRIBUTIONS ON-ROAD LANES WITH TRAFFIC FLOW VARIABLES ...... 116 T Kurniati, Purnawan, A N Fajri ...... 116 THE EFFECT OF WATER-SATURATED SAND FRACTION ON THE SAND BOILING PHENOMENON ...... 117 R Yuliet, A Hakam, Mas Mera,and Fauzan...... 117 DECISION SUPPORT SYSTEM IN DETERMINING THE PRIORITY OF DISASTER MITIGATION INFRASTRUCTURE DEVELOPMENT IN VILLAGES USING THE SIMPLE ADDITIVE WEIGHT (SAW) METHOD ...... 117 B Hidayat, A Rasadi, and T Ophiyandri ...... 117 THE IMPACT OF TIDAL FLOOD ON LAND AND BUILDINGS BY 3D MODELING IN THE AREA OF PEKALONGAN ...... 118 Nursetiawan, Muhammad Ghutsni Faisal, Jazaul Ikhsan ...... 118 AN INFORMATION MANAGEMENT SYSTEM FOR EFFECTIVE DISASTER RELIEF OPERATIONS ...... 119 R Patrisina, D Meilani, M Habib ...... 119 THE EFFECT OF DEM RESOLUTION ON CALCULATION OF EROSION IN BATANG KURANJI WATERSHED ...... 120 Revalin Herdianto1, Elvi Roza Syofyan1, Bambang Istijono2 ...... 120

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EFFECT OF REINFORCEMENT RATIO ON FLEXURAL BEHAVIOR OF REINFORCED CONCRETE BEAMS STRENGTHENED WITH CFRP PLATES ...... 120 Rendy Thamrin1, Zaidir1, Amirah Zakiyyah2 ...... 120 THE SEISMIC RESPONSES OF RC FRAMES INFILLED WITH FULL AND PARTIAL MASONRY WALLS UNDER CYCLIC LATERAL LOAD ...... 121 Maidiawati1, J Tanjung2 ...... 121 GEOSPATIAL ANALYSIS FOR DEVELOPING AGRICULTURE OF MARSHLANDS TO SUPPORT REGIONAL FOOD SECURITY IN THE ERA OF PANDEMIC COVID-19 IN HST REGENCY, KALIMANTAN SELATAN ...... 122 Sobar Sutisna1, Sa’dianoor2, Syamsul Maarif1, Jazmi Adlan Bohari1 .... 122 THE ROLE OF COMMUNICATION AS THE DISASTER RISK REDUCTION IN INDONESIA CAPITAL CITY TRANSFERENCE POLICY ...... 123 Zahrotul Khumairoh, IDK Kerta Widana, Siswo Hadi Sumantri ...... 123 THE IMPACT OF THE COVID-19 PANDEMIC ON THE SOCIAL LIFE OF FEMALE WORKERS ...... 124 Ernalem Bangun, IDK Kerta Widana ...... 124 FRAGILITY ASSESMENT OF MID-RISE RC BUILDING USING HAZUS METHOD IN HIGH SEISMIC ZONE ...... 125 Ade Prayoga Nasution1, Masrilayanti2, Jafril Tanjung2, Zairah Nabilla Sidiq2...... 125 TRAFFIC MANAGEMENT AT LANDSLIDE DISASTER IN WEST SUMATERA AND ITS IMPACT TO PASSENGER AND DRIVERS .... 126 Purnawan and Miftahul Khairah ...... 126 A SIMPLE METHOD FOR DESIGN SEGMENTAL RETAINING WALL STRUCTURE ...... 127 D I Mazni1,2, A Hakam3, J Tanjung3, F A Ismail3, Yossyafra3 ...... 127

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IMPACT OF UNCONTROLLED LAND USE CHANGE ON THE ROAD PERFORMANCE OF THE TSUNAMI EVACUATION ROAD IN THE MUNICIPALITY OF PADANG ...... 128 Yossyafra1, Marlinda1, M Syukur1, D I Mazni2...... 128 SEISMIC PERFORMANCE OF MEDIUM CABLE STAYED BRIDGE .. 128 Masrilayanti1, Ruddy Kurniawan1, Ade Prayoga Nasution2, Riza Aryanti1 ...... 128 CAUSAL STRUCTURE FRAMEWORK OF MAN-MADE DISASTER IN CONSTRUCTION ...... 129 Akhmad Suraji ...... 129

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ICDM-1295 APPLICATION OF POROUS CONCRETE TO RESOLVE FLOOD ON THE ROADS A B Utomo, L F Hidayatiningrum, and B Dhanardono Highway Construction Technology, Polytechnic of Public Work, Semarang, Indonesia  [email protected] ABSTRACT In the rainy season, many cases of roads being submerged in water because of a lack of drainage capacity and low water absorption by the subgrade. This study utilizes porous pavement as an interlocking pavement to increase water absorption to the drainage layer and subgrade. Porous concrete is made from cement mixture : coarse aggregate = 1:6 with w/c ratio 0,4. The results showed the value of specific gravity, water absorption, compressive strength, and Na2SO4 resistance respectively 1.703 gr/cm3, 2,57%, 10,8 MPa, and 0,79%. To see the level of serviceability, no fine interlocking pavement is arranged above the drainage layer and the levelling layer, and then a trajectory and inundation test is performed. The result of inundation and track tests shows that the construction can pass water to subgrade without inundation and can withstand the wheel loader that is equivalent to 13000 kg so that it can be used for sidewalks, park lanes, and pavement with a maximum axle load of 8 tons.

ICDM-1300 IMPACT ON CONSTRUCTION PRODUCTIVITY BASED ON THE MINISTER OF HEALTH’S DECREE IN INDONESIA R Irfanto Lecturer in Civil Engineering, Faculty of Engineering and Computer Science, Krida Wacana Christian University, West Jakarta  [email protected] ABSTRACT The construction industry is one of the industries affected by the Coronavirus pandemic. Not only in terms of the economy but in terms of project workers and construction productivity are also disrupted by this pandemic. Construction productivity is an important factor so that construction projects

2ND ICDM 2020 26 can be completed on time. Construction productivity that is closely related to construction workers is greatly influenced by new regulations. In Indonesia, there are new regulations after the Coronavirus pandemic, namely the Decree of the Indonesian Minister of Health. This paper discusses the impact on construction productivity based on The Minister of Health’s Decree in Indonesia. The methodology used for this study were literatur study about factor that affecting construction productivity, Minister of Health’s Decree for working in Coronavirus pandemic, and construction industry during Coronavirus pandemic, then analyze the impact on construction productivity and improving construction productivity in Coronavirus pandemic. The result of the study show that construction productivity after Coronavirus pandemic will be lower than before Coronavirus, but we can improve the productivity by ensure the contractor can manage the system, workspace, and safety and health environment well.

ICDM-1302 MEASUREMENT ANALYSIS OF THE LEVEL OF HOUSEHOLD PREPAREDNESS FOR FACING LANDSLIDE IN BOGOR REGENCY P D Saputra1, C Rahmawati2, K S H Purnomo3, E Larosa4 , Nurhasanah1 1Civil Engineering Study Program, School of Engineering & Technology, Tanri Abeng University, Jakarta, Indonesia 2Industrial Engineering Department, Faculty of Industrial Technology, Universitas Dirgantara Marsekal Suryadarma, Jakarta, Indonesia 3Master of Management Program, Universitas Teknologi Yogyakarta,Yogyakarta, Indonesia 4Mechanical Engineering Education, Faculty of Teacher Training and Education, Universitas Negeri Yogyakarta, Yogyakarta, Indonesia  [email protected] ABSTRACT There are so many areas in Indonesia that are prone to landslides. Bogor is the regency with the most frequent landslides. Therefore, high community preparedness is needed to deal with the landslide, especially at the household level because it is the spearhead of preparedness and influence disaster risk. The objective of this research is to measure and analyze the level of household preparedness for facing landslide. The location of this research is in Cibadak

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Village, Bogor regency where a landslide disaster had happened. This is a quantitative research. The number of the samples were 100 household. Data collection was done by surveying samples and distributing questionnaires. The data would be analyzed with descriptive analysis, and the results of level of household preparedness would be categorized to five levels which were very prepared (80-100), prepared (65-79), almost prepared (55-64), less prepared (40-54), and not prepared (0-39). The results of the research are the average index value of Knowledge and Attitude (KA) parameter is 66.77, Emergency Planning (EP) parameter is 52.24, Warning System (WS) parameter is 64.80, Resources Mobilization Capacity (RMC) parameter is 51.25 and the level of household preparedness for facing landslide is 59.26 or and it is significant at the almost prepared level.

ICDM-1303 THE DEVELOPMENT OF THE MODEL OF INFLUENCE OF SOCIODEMOGRAPHIC CHARACTERISTICS AND DISASTER EXPERIENCE TOWARD HOUSEHOLD PREPAREDNESS FOR FACING LANDSLIDE IN BOGOR REGENCY P D Saputra1, C Rahmawati2, P Karuniakhalida3, K S H Purnomo4, E Larosa5 1Civil Engineering Study Program, School of Engineering & Technology, Tanri Abeng University, Jakarta, Indonesia 2Industrial Engineering Department, Faculty of Industrial Technology, Universitas Dirgantara Marsekal Suryadarma, Jakarta, Indonesia 3Mathematic for Education Program, Faculty of Teacher Training and Education, Universitas Riau, Riau, Indonesia 4Master of Management Program, Universitas Teknologi Yogyakarta,Yogyakarta, Indonesia 5Mechanical Engineering Education, Faculty of Teacher Training and Education, Universitas Negeri Yogyakarta, Yogyakarta, Indonesia  [email protected] ABSTRACT Indonesia has a high tendency of having landslides. Bogor is one of regency which is very prone to landslide disaster due to high rainfall. Landslides are a very dangerous threat to public safety. The preparedness can build disaster resilient communities that can support the national resilience. Sociodemographic characteristic and disaster experience are determining

2ND ICDM 2020 28 factors for the success of preparedness. The purpose of this research is to develop a model of the influence of sociodemographic characteristics and disaster experience toward household preparedness for facing landslide. This research is done in Cibadak Village, Sukamakmur Bogor. This research uses a quantitative approach with 100 sample of households. Multiple linear regression technique is used for analyzing the model. The results of the research showed that household preparedness is significantly influenced by sociodemographic characteristics which is education (p = 0.000), meanwhile age, income and the number of family member don’t significantly influence. Beside that the household preparedness is also greatly influenced by disaster experience too (p = 0.000). Education influence on household preparedness for facing landslide as much as 38.81% and the disaster experience is 52.85%.

ICDM-1304 CASE STUDY: SIGNIFICANT FACTORS IN HAZARD AND VULNERABILITY ASSESSMENTS IN FLOOD MITIGATION IN PADANG CITY Andy Ikhvan1,2 and Mas Mera3 1Doctor Student in Civil Engineering, University of Andalas, Indonesia. 2Water Resources Development Agency of West Sumatra, Indonesia 3Associate Professor in Civil Engineering, University of Andalas, Indonesia.  [email protected] ABSTRACT Flood disasters often occur in Padang City due to rainfalls with high intensity and frequency, and are exacerbated by the city located on a flatter coast up to the steep Bukit Barisan. The mountain of Bukit Barisan is parallel to the Padang shoreline, and the distance between them is relatively close, it's just about 20 km. The present research focuses on the determination of the significant factors in the assessments of both hazard and vulnerability in flood mitigation in Padang City. The hazard assessment in the present study uses indicators of hydro-meteorological, elevation, slope, land use, and flood- frequency data. Whereas the vulnerability assessment uses indicators of Population density, Settlement density, sex ratio and age group ratio data. The results of the present study show that the most significant factors in flood- hazard assessment in Padang City are the land elevation factor from the sea level and the slope factor especially in the upper reaches of the river.

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Meanwhile, the factors of density levels of both the settlement and population are crucial in the assessment of flood vulnerability in Padang City.

ICDM-1305 EVALUATING THE QUALITY OF SERVICE FOR BUS PERFORMANCE IN ALOR SETAR Shuhairy Norhisham1, 2, Muhammad Fadhlullah Abu Bakar1, Agusril Syamsir1, Nur'atiah Zaini1, Nur Lyana Baharin3 , Nur Syafiqah Mohd Shkuri4, Noorazizun Mohd Saad5 1College of Engineering, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia. 2Institute of Energy Infrastructures (IEI), Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia. 3College of Business Management & Accounting, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia. 4College of Energy Economics & Social Sciences, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia. 5College of Computing & Informatics, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia.  [email protected] ABSTRACT Traffic congestion is one of the issues raised as the development and urbanization moving forward. Bus services still considered as an public transport option to move from one location to another. Since 1957, bus services have been a primary selection not just a big cities like Kuala Lumpur and Georgetown as well as small town in like Alor Setar, Kota Bahru and others. As the demand increase year by year, the quality of service is expected to be improved as well. Recently, public transport in small cities in Malaysia also faced a huge competition with E-hailing services such as Grab and MyCar. Therefore, these paper is to determine the service quality of bus performance in Alor Setar, Kedah. These studies were conducted in April 2019. Service quality data have been taken at Terminal Shahab Perdana, Alor Setar. Transit Capacity and Quality of Service Manual (TCRPM) has been stated as a specific guidelines and key indicators to determine the quality service of bus performance in designated area. There were four specific areas would be focused in these studies such as service frequency, hours of service, factors of passenger load, on time performance. Based on the results, it shows that only

2ND ICDM 2020 30 passenger load factor has classified as A quality of service in these studies. The hours of services and on time performance were classified as Class D while the service frequency was classified as Class F. The overall quality of service in Alor Setar, Kedah is classified as Class D which consider as moderate as there is a lot of issues should be addressed. Some improvement on these three attributes should be made to increase the quality of service. Authorities also could use the outcome of these studies to determine and identifies the significant improvements for bus service on these areas.

ICDM-1306 THE ASSESSMENT OF QUALITY SERVICES ON BUS PERFORMANCE USING EXPERT SYSTEMS IN POST CATASTROPHE EVENT Shuhairy Norhisham1, 2, Muhammad Fadhlullah Abu Bakar1, Agusril Syamsir1, Nur'atiah Zaini1, Nur Lyana Baharin3 , Nur Syafiqah Mohd Shkuri4, Noorazizun Mohd Saad5 1College of Engineering, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia. 2Institute of Energy Infrastructures (IEI), Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia. 3College of Business Management & Accounting, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia. 4College of Energy Economics & Social Sciences, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia. 5College of Computing & Informatics, Universiti Tenaga Nasional, 43000 Kajang, Selangor, Malaysia.  [email protected] ABSTRACT Today natural disaster is everywhere all over the world and pandemic disaster has been current have been defined as natural disaster as well. The disaster events caused by tsunamis, flood, typhoons and others Natural disaster also give significant impact towards public transport system. In 2012, nearly 1.5 million trips in Klang Valley daily and public transport trips represent almost 30% only as their main public transportation daily. Development of expert system could identifies the problem on bus services as well as assisting on encounter problem raise based on expert system. Therefore, these studies were aimed to develop an expert system of bus services in Klang Valley. Five major cities located in West Klang Valley have selected in these studies

2ND ICDM 2020 31 including Puchong, Petaling Jaya, Subang Jaya, Shah Alam and Klang. Transit Capacity and Quality of Service Manual (TRCPM) has been referred as a guidelines in these studies. Three main phases on development expert system using MATLAB including analyzing job scope, management of information knowledge and development of prototype. System named as BUS-QOS could be used to identified level of service quality of buses in specific location as well as suggestion by expert to improve the service quality of buses in that area. At the end of the studies, validation, verification and evaluation process should be taken in order to check the output of the system in terms of operation as well as its result. The result of BUS-QOS has been verify based on system analysis and manual calculation and it shows that almost100% accurate for all designated attributes. The output of these system based on transportation engineering knowledge which could be used by user easily.

ICDM-1308 IDENTIFICATION OF CONSTRAINT FACTORS ON THE CONTRACT QUALITY PLAN FOR THE BATANG KURANJI SEDIMENT CONTROL DEVELOPMENT PROJECT, PADANG CITY Wendi Boy1, Rafki Imani2 , and Nisa Tri Noviani2 1 Civil Engineering Study Program , Dharma Andalas University Padang 2 Department of Civil Engineering, Faculty of Engineering, Putra Indonesia University "YPTK" Padang  [email protected] ABSTRACT The implementation of the Contract Quality Plan (RMK) is an important thing because from the RMK we can guarantee the quality of work to meet standards so as to meet consumer needs. RMK must be made by the goods / services provider for any work to be carried out in the field. This research was conducted in the Batang Kuranji Sediment Control Building Project which was carried out by the contractor PT. PP (persero) tbk .. This study aims to determine the constraints factors in implementing the RMK. The constraints are limited to only material constraints. The data taken is secondary data, namely data from the RMK from the contractor PT. PP (persero) tbk while the primary data was taken by questionnaire to workers and interviews with employees. The method used is descriptive quantitative then descriptive statistical analysis and t test are carried out to obtain the dominant factors in

2ND ICDM 2020 32 the RMK in the project. Based on the results of the research, it was found that the main factor as a constraint in the Contract Quality Plan in this project was the Delay in Delivery of Materials which had an average value of 2,700 and the smallest was the material standard required to no longer be in the market with an average value of 2.133.

ICDM-1311 POTENTIAL ENVIRONMENT AND SOCIO-ECONOMIC IMPACT OF BIOFUEL PRODUCTION IN MALAYSIA: A PRELIMINARY REVIEW Dhurgaashini Mohan1, Yusuf Essam1, Herda Yati Binti Katman1, Ali Najah Ahmed2, and Abd Halim Shamsuddin3 1Department of Civil Engineering, College of Engineering, Universiti Tenaga Nasional (UNITEN), 43000 Selangor, Malaysia. 2Institute of Energy Infrastructure (IEI), Universiti Tenaga Nasional (UNITEN), 43000 Selangor, Malaysia. 3Institute of Sustainable Energy (ISE), Universiti Tenaga Nasional (UNITEN), 43000 Selangor, Malaysia.  [email protected] ABSTRACT Malaysia is the second-biggest palm oil producer worldwide. Roughly 5.9 million hectares of area is planted with oil palm in Malaysia as recorded in 2019, making the palm oil industry one of the main income-generating industries for the country’s economy. As the palm oil industry in Malaysia grows, concern has been raised as several environmental and socio-economic issues are linked with the expansion of oil palm cultivation. The findings of this research contributes towards the preliminary investigation on the effect of biofuel demand in Malaysia on potential deforestation, greenhouse gas emissions due to land use changes and water pollution due to palm oil mill effluent (POME); and the effect of biofuel demand in Malaysia on other types of crops.

ICDM-1312

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LANDSLIDE SUSCEPTIBILITY ASSESSMENT USING FREQUENCY RATIO TECHNIQUE – A CASE STUDY OF NH67 ROAD CORRIDOR IN THE NILGIRIS DISTRICT, TAMILNADU, INDIA Subbarayan Saravanan1, Bambang Istijono2, Jesudasan Jacinth Jennifer3, Devanantham Abijith4 and Sivaranjani S5 1Assistant Professor, Department of Civil Engineering, National Institute of Technology Tiruchirappalli, Tamilnadu, India 2Professor, Department of Civil Engineering, Andalas University, Padang, Indonesia 3Research Scholar, Department of Civil Engineering, National Institute of Technology Tiruchirappalli, Tamilnadu, India 4Research Scholar, Department of Civil Engineering, National Institute of Technology Tiruchirappalli, Tamilnadu, India 5PG Student, Bharathidasan University School of Geoscience, Tiruchirappalli, Tamilnadu, India  [email protected] ABSTRACT The purpose of this study is to develop landslide susceptibility mapping for NH67 road corridor in the Nilgiris district of Tamilnadu, India using Geographic information system (GIS) and multivariate statistical approach. In November 2009, North-East monsoon triggered numerous landslides in the Nilgiris district of Tamilnadu, resulting in a high death toll and considerable damage to property. The landslide-controlling parameters namely lithology, soil type, slope gradient, normalised difference vegetation index (NDVI), proximity to faults, and proximity to road, rainfall and streams were extracted from the spatial database, and the weight coefficient of each factor was computed. Then the landslide hazard was analysed using the frequency ratio method. For verification of the model, the results of the analyses were then compared with the field verified landslide locations. It was concluded that about 3.86% and 16.23 % of the study area are in the very high and high susceptible zone. Based on this, landslide susceptibility map was then classified as very high, high, moderate, low and very low. In the course of model validation, the results were validated using ROC curve. The AUC of Frequency ratio model was 67.5%. Therefore, the landslide susceptibility index map of study area is considered valuable for the decision-makers of the landslide- prone region. This landslide susceptibility map can be used to carry out

2ND ICDM 2020 34 mitigation measures to reduce the susceptibility associated with landslide hazard.

ICDM-1313 INVESTIGATION THE EFFECT OF CENTRAL OPENINGS IN THE WEB ON THE BEHAVIOUR OF THE PLATE GIRDERS Dr. Mazin A. Al-Mazini, Dr. Alyaa Alhamaidah, Dr. Mustafa Shareef Zewair Civil Engineering Department, College of Engineering, Basrah University, Basrah, Iraq  [email protected] ABSTRACT The effect of web openings in steel girders were investigated experimentally by testing six girders under two point loads with circular, square and rectangular opening webs. The last girder was a plate girder with a solid web; however, similar dimensions were used for all girders. Results of experimental work revealed that girders’ critical buckling decreased with increases in openings sizes, also depending upon the shape of the opening. Also, theoretical equations were initiated due to elastic local buckling and compared with experimental. Both experimental and analytical work was adopted to carry out the numerical investigations of the structural response of the girders with different shape of holes by using ANSYS (version 12.0). SHELL 181 was utilized to create the steel plate. Finite element model adopted though out the parametric study to investigate the critical buckling of plate girder with different web width ratios and slenderness ratios to determine the effects of changing size and shape for different web width and slenderness ratio.

ICDM-1314 BEYOND THE TSUNAMI EFFECT: TOWARDS AN UNDERSTANDING OF THE SPECIAL AUTONOMY BUDGET POLICY IN REDUCING POVERTY IN ACEH Yuliandri1 , Muhammad Ichsan Kabullah2,3 , Khairul Fahmi1, Feri Amsari1,3 , M. Nurul Fajri4 1Department of Constitutional Law, Andalas University, Kampus Unand Limau Manis, Padang, Indonesia

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2Department of Public Administration, Kampus Unand Limau Manis, Padang, Indonesia 3The Center of Constitutional Studies (PUSaKO), Faculty of Law, Andalas University, Padang, Indonesia 4Faculty of Law, University of West Sumatera, Padang, Indonesia  [email protected] ABSTRACT Aceh still struggling to reduce poverty after the tsunami disaster in 2004. Aceh was the 6 out of 34 provinces on the poverty problem in Indonesia in 2019. Although there area huge amount of special autonomy funds as asymmetric decentralization consequences, Aceh could not against poverty of the Acehnese people. This study attempt to explore the special autonomy budget policy by the Aceh government in the poverty reduction agenda after tsunami effect. The study used mixed legal study with a case study approach in the Aceh Provincial Government in 2019. The findings reveal that there are several factors of the low effectiveness of special autonomy funds in reducing poverty in Aceh, i.e. natural disasters, miss management of special autonomy funds, weak planning, absence of supervision, and inefficient local bureaucracy. In that sense, the Aceh government needs more policy reforms and institutional modernity to reduce poverty and promote opportunity for poor people.

ICDM-1316 DISASTER RISK REDUCTION AND MANAGEMENT FRAMEWORK FOR KENNON ROAD Joseph Rei Mark Co De La Salle University, Manila, Philippines  [email protected] ABSTRACT Kennon Road provides the shortest route from Rosario, La Union to Baguio City with a total length of 33.7 kilometers. This thoroughfare had suffered many road slope disasters due to its topographical location. Using the JICA and DPWH road slope manual, the occurrence of six types of road slope disasters have been identified namely: 1) soil slope collapse, 2) rock slope collapse, 3) landslide, 4) road slip, 5) debris flow, and 6) river erosion. Based on past records, it had been closed 31 times during the period 2013 to 2019 due to typhoons. Hence, motorists have shifted to using Rosario-Pugo Road and

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Marcos Highway which is a longer route. In this paper, the researcher proposes a disaster risk reduction and management framework for Kennon Road which is congruent to the four principles of the NDRRMC: 1) prevention and mitigation, 2) preparedness, 3) response, and 4) rehabilitation and recovery. Moreover, the researcher proposes to consider a Public-Private Partnership scheme that would enable the government to tap a highway concessionaire who will be in-charge of the project from its financing, design, construction, operation, and maintenance thereby improving the level of service, and most importantly ensuring the safety of all road users.

ICDM-1320 CASE STUDY: VERTICAL DISTRIBUTIONS OF BOTH TEMPERATURE AND DISSOLVED OXYGEN IN LAKE DIATAS INDONESIA Tivany Edwin1, Mas Mera2, Puti Sri Komala3, Denny Helard3, Vera Surtia Bachtiar3 1Doctor Student in Civil Engineering at University of Andalas, Indonesia. 2Lecturer in Civil Engineering at University of Andalas, Indonesia 3Lecturer in Environmental Engineering at University of Andalas, Indonesia  [email protected] ABSTRACT Lake Diatas is one of the largest lakes in West Sumatra with a variety of uses that are vulnerable to contamination that could endanger lake organisms. Therefore, the objective of the present study is to describe the vertical distributions of both temperature and dissolved oxygen (DO) in Lake Diatas as an indication of lake quality. The samples of lake water were taken at five points, namely in the middle of the lake, Teluk Kinari, Muara Danau, Gurun Datar and in Tanduk Kecil. Frequency of taking was once a month in October, November and December 2019. Variation in depth for temperature and DO observations was based on the methods of surface-water sampling (SNI 6989.57: 2008). The present study results show that the temperature range at various points with respect to lake depth variation was 20.1 to 25.9 °C with a standard deviation of 1.15 °C, while DO was in the range of 6.2 to 7.9 mg/l. These conditions still met the quality standards of lake water (Governor Regulation No. 24 Year 2010 Class II) where the temperature deviation must be less than 3 °C, and the minimum DO is 4 mg/l. By using statistical method of the two-way ANOVA, it is found that the temperature was significantly

2ND ICDM 2020 37 different from the time of sampling with a P-value <0.05, but the temperature did not differ significantly based on depth. The sampling time and depth of collection differed significantly for DO at 2 points close to the agricultural land. It can be concluded that the temperature and DO in Lake Diatas were still good because the oxygen content was still sufficient to ensure the survival of lake organisms. In addition, there was no indication of thermal stratification in the lake.

ICDM-1321 PERFORMANCE EVALUATION OF DYNAMIC PULLEY DAMPER SYSTEM FOR INSTALLATION ANGLE Ryo Majima1, Kazuhiro Hayashi2, Taiki Saito3 1Master Program of Architecture and Civil Engineering Department, Toyohashi University of Technology, Japan 2Assistant Professor of Architecture and Civil Engineering Department, Toyohashi University of Technology, Japan 3Professor of Architecture and Civil Engineering Department, Toyohashi University of Technology, Japan  [email protected] ABSTRACT Dynamic pulley damper system (DPDS) as an innovative methodology for a response control system using a block and tackle mechanism to provide enhanced vibration reduction in high-rise buildings, has been proposed. The key aspect of this system is to exponentially increase the damper movement using an amplification mechanism comprising movable pulleys and a wire. This paper presents the relation between the arrangement of the wire’s angles, particularly in the amplification part, and the vibration reduction effect. The DPDS is introduced into a center-core high-rise building. Two small building varieties with different core heights are designed; then, a wire is stretched between the frame and the core structures. The capability of the DPDS to control vibration is confirmed via the shaking table test. Additionally, the accuracy of the simulation models is verified by a comparison with the experimental results. Moreover, this paper includes a parametric analysis test to determine the wire-stretching angle for establishing the most efficient

2ND ICDM 2020 38 design. The results of the above analysis show that the wire-stretching angle influences the seismic performance of the DPDS.

ICDM-1323 SEISMIC PERFORMANCE OF EARTHQUAKE RESISTANT SIMPLE RESIDENTIAL CONFINED MASONRY HOUSE STRUCTURE BASED ON PERMEN PUPR NO.5 OF 2016 SPECIFICATION Angga Arief Gumilang S, Muhammad Rusli Laboratory of Building Materials and Structures, Directorate of Technical Development of Human Settlements and Housings, Directorate General of Human Settlements, Ministry of Public Works and Public Housing of Republic of Indonesia  [email protected]

ABSTRACT This research focused on seismic performance evaluation of earthquake resistant simple landed house using Confined Masonry (CM) structural system which follows technical specifications set forth in regulation of Appendix 2 of Peraturan Menteri Pekerjaan Umum dan Perumahan Rakyat (Permen PUPR) Nomor 5 tahun 2016. The seismic performance evaluation of the structure is performed by conducting strength based analysis using earthquake loading as specified in SNI 1726:2019. Seismic performance evaluation of Unreinforced Masonry (URM) simple landed house was also performed to be compared. Evaluation result shows that CM house prototype which follows the regulation has good seismic performance. Meanwhile, URM house prototype is inadequate to resist earthquake loads particularly on locations in Indonesia with moderate to high level of seismicity.

ICDM-1326 ANALYSIS OF THE DROUGHT DISTRIBUTION OF THE PALMER DROUGHT SEVERITY INDEX (PDSI) METHOD IN THE IRRIGATION JURANG SATE ON LOMBOK RIVER BASIN S C Noviadi Youth of Profesional Engineering, Mataram, West Nusa Tenggara  [email protected] ABSTRACT

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The problem of drought during the long dry season becomes routine in Indonesia, but the handling of prevention and prevention is very slow so that it becomes a prolonged problem that is not resolved. Drought has a relationship with the balance between demand and water supply for various purposes. Irrigation area (DI) Sate Gorge is divided into two, namely: In the Upper Sate Jurang (4095 Ha) and DI Surang Grat Hilir (6383 Ha). The availability of water in the Jurang Sate Irrigation Area (DI) can be obtained from Jangkok Dam, Sesaot Feeder Dam, Keru Fider Dam, Jurang Sate Dam. The analysis conducted was: i) Thiessen Polygon Analysis, ii) Analysis of Regional Rainfall, iii) Analysis of Area Evaporation, and iv) Analysis of Drought in the PDSI Method. Based on the drought analysis, it was found that the drought index value in the Irrigation Area (DI) The satay gap occurred in August to October which needed further water regulation because the Satay Irrigation Area (DI) had water coming from water structures in the form of weirs namely Jangkok weir, Weir Sesaot feeder, Bendung Keru Fider and Bendung Jurang Sate.

ICDM-1328 STUDY ON ROBUSTNESS OF REBOUND HAMMER AND ULTRASONIC PULSE VELOCITY MEASUREMENT IN SEVERAL CONCRETE DAMAGE LEVELS Ni Nyoman Kencanawati, Akmaluddin, Rima Marlitasari, Gazi Paedullah Civil Engineering Department Mataram University, Jl. Majapahit No 62 Mataram Indonesia  [email protected] ABSTRACT The results of reading the rebound number in a hammer test and velocity in an ultrasonic pulse velocity (UPV) test are usually associated with concrete compressive strength. A correlation or regression is provided to convert those parameters. However, several factors can influence this correlation. One of them is the level of concrete damage. The purpose of this study is to look at the robustness of hammer and UPV reading data in various concrete damage conditions. Experiments were carried out by testing three groups of concrete strength: 25, 35, and 45 MPa. All the concrete was tested using the UPV and rebound hammer test. The damage was determined as concrete which has

2ND ICDM 2020 40 decreased compressive strength by 30% (low), 50% (medium), and 80% (high) of the initial strength. The initial strength was the maximum compressive strength on each concrete group which was determined by compression testing. The rebound hammer data shows the correlation results that are almost the same as the correlation provided by the manufactures for concrete without damage and slight damage. But this is not the case with medium and highly damaged concrete, showing the results of the highly distorted correlation. The greater the level of damage, the greater the deviation. For concrete which damage level up to 80%, there is a deviation ratio of up to 3.6 times compared to the correlation value provided by the tool. Furthermore, the reading of UPV has a constant correlation without being affected by damaged concrete conditions up to the velocity of 3500 m/s. Thus, in a rapid assessment of the strength and safety of existing concrete structures, the robustness of a hammer test implements in concrete with sound and slight damage, but for concrete with beyond of elastic damage conditions, it must be accompanied by other tools such as UPV or sampling core.

ICDM-1329 CASE STUDY: ESTIMATING THE OCCURRENCE OF SEA WATER INTRUSION USING GEOELECTRICAL METHOD IN PANGANDARAN DISTRICT R. S. Yuliatmoko, T. Kurniawan, B. Sunardi, T. Hardy, A. A. Martha, Supriyanto Rohadi, Nelly Florida Riama Research and Development Center BMKG SAngkasa 1 Street No. 2 Kemayoran Jakarta, 10720, Indonesia  [email protected] ABSTRACT Research to find out intrusion in Pangandaran is very interesting, because this area is close to coastal objects that has been expanding and leading tourist attraction in West , Indonesia. This intrusion information is useful to determine aquifer locations which indicate below that the location is saturated water. If this aquifer locations are detected in large areas and wide volume,

2ND ICDM 2020 41 then this location will have potential liquefaction during a big earthquake. This research could be used as first step before next research to measure and calculate on either locations by detail grid and radius with these 2 lines, so it is gotten direct and large distribution of sea-water intrusion. The purpose of this study is to identify the subsurface structures to get an overview of sea- water intrusion. The methods used is geoelectrical based on the electrical resistance value of rock type. The results of the measurement of 2 lines and data processing showed that the line in Pesona Park Pangandaran and the line in SMPN 1 Soccer Field Pangandaran showed the presence of sea-water intrusion that very salty with a resistance value of 0.5-2.0 ohm-meter, at a depth of 19-20 meters.

ICDM-1331 FINANCIAL PERFORMANCE AND IMPACTS OF VILLAGE FUND ON POST DISASTER RURAL ECONOMIC DEVELOPMENT IN PIDIE JAYA-INDONESIA R M Iqbal1, A Nugroho1,3, Fajril1, H I Martiastuti2, L Nonita2, K Fadhiela4 1GS. Agribusiness. Universitas Syiah Kuala, , Indonesia 2Dept.Agribusiness. Universitas Syiah Kuala, Banda Aceh, Indonesia 3Tsunami and Disaster Mitigation Research Center. Universitas Syiah Kuala, Banda Aceh, Indonesia 4Faculty of Agriculture. Teuku Umar University, , Indonesia  [email protected] ABSTRACT Village Fund is a tremendous budget decentralization scheme in Indonesia. The program has been showing its impacts particularly in public infrastructure revitalization in rural areas since 2015. This study aims to examine the performance of Village Funds and their impacts on post disaster economic re- developments using the year of 2015-2019 financial statement of 19 villages in Pidie Jaya (Aceh-Indonesia). This study shows that the performance in terms of economic output is very poor. The Village Fund failed to generate the Original Village Income through the establishment of the Village Owned Enterprises (BUMDes)

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TSUNAMI-INDUCED INUNDATION ON THE COAST OF PALU CITY Rizki Robbi Rahman Alam1, Mohammad Bagus Adityawan2, Mohammad Farid3, Asrini Chrysanti4, Widyaningtias4, Mipi Ananta Kusuma5 1 Water Resources Management Master Program, Institut Teknologi Bandung, Jalan Ganesha 10, Jawa Barat 40132, Indonesia 2 Department of Water Resources Management and Engineering, Institut Teknologi Bandung, Jatinangor, Jawa Barat 45363, Indonesia 3Center for Coastal and Marine Development, Institut Teknologi Bandung, Jalan Ganesha 10, Jawa Barat 40132, Indonesia 4Water Resources Engineering Research Group, Institut Teknologi Bandung, Jalan Ganesha 10, Jawa Barat 40132, Indonesia 5Institute of Research and Community Service, Institut Teknologi Bandung, Jalan Ganesha 10, Jawa Barat 40132, Indonesia  [email protected] ABSTRACT The frequency of tsunamis in Indonesia is smaller than other natural disasters. But its destructive power is quite large. Although this disaster has a low probability of occurring. The losses caused by these disaster equaled and even exceeded frequent disasters such as floods and landslides. More than 85% of tsunamis in Indonesia were caused by underwater earthquakes. Thus, mitigation efforts are needed to minimize the impact of the tsunami disaster. The source of the tsunami wave was generated on the Makassar Strait Thrust North . In this study, tsunami was modelled by using Delft3D software. The model approach uses the principle of momentum and continuity. The area of the model was divided into 2 grids. The wave reached the bay mouth in 10 minutes and arrived at the coast of the study area in 20 minutes. The highest peak of water level on the coast occurred in the second wave with an amplitude of 2.45 m and a wave height of 5.19 m. The inundation map was compared to the recorded data from the 2018 tsunami. It was found that there is no significant difference between the two although the tsunami generation were different.

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MANAGEMENT OF STUDENT LEARNING WITH INFORMATION TECHNOLOGY DURING THE COVID-19PANDEMIC Sri Siswati, Yolanda Safitri Health Policy and Administration Departement,Faculty of Public Health Andalas U, Padang, Indonesia  [email protected] ABSTRACT On September 28, 2018 an earthquake occurred (7.5 M) in Central Sulawesi which caused a tsunami. The earthquake epicenter located at 0.178 South Latitude and 119.840 East Longitude. The source of the earthquake is 26 km from Donggala with the depth of the earthquake source 10 km. Based on observations, the source of the tsunami wave came from an avalanche at the bottom of the bay. The pattern of tsunami wave distribution confuses based on information from witnesses. The source of the tsunami wave was generated on the Makassar Strait Thrust North Fault. In this study, tsunami was modelled by using Delft3D software. The model approach uses the principle of momentum and continuity. The area of the model was divided into 2 grids. The wave reached the bay mouth in 10 minutes and arrived at the coast of the study area in 20 minutes. The highest peak of water level on the coast occurred in the second wave with an amplitude of 2.45 m and a wave height of 5.19 m. The inundation distribution model result approaches the measurement of tsunami inundation traces. There is difference occurs on the right side of the estuary because the model does not include structural elements.

ICDM-1334 ANALYSIS OF EROSION RISK ON SUB-WATERSHED ARJASA IN JEMBER REGENCY Yaumil Zahro Fadila1, Idah Andriyani2, Dwi Putra Ardani2 1 Natural Resource and Environmental Management, Postgraduate, Jember University, Indonesia 2 Agricultural Engineering, Faculty of Agricultural Technology, Jember University, , Indonesia  [email protected] ABSTRACT The land formation is part of the geomorphological process in which land and landforms are two kinds of natural resources that are interdependent. The

2ND ICDM 2020 44 formation and development of this soil change the nature of the soil that affects erodibility. This study aims to determine the erodibility (K) value of erosion rates in the Arjasa Sub-watershed area by using K value data from field measurements and data from the 1960 land map using the USLE method. From the calculation results, the erodibility value of soil types was dominated by 0.121, whereas based on the erodibility value, the results of field measurements were dominated by 0.63. With the other factors being the same then an erosion rate calculation based on erodibility is used using a map of 48.44 tons/ha/yr and field measurement erodibility of 215.39 tons/ha/yr. Thus the need for conservation measures in the form of selection and regulation of cropping patterns, planting land cover, use of crop residues as mulch, and developing annual crop farming. And it is advisable to take measurements directly in the field to determine the soil erodibility (K).

ICDM-1337 PREFERENCE SYSTEM FOR GUIDED AND SELECTION OF IMPROVEMENT TYPE AND ASSESSMENT OF SOIL BASED ON EXPERT OPINION WITH WEIGHTED SYSTEM Tri Basuki Kurniawan1, Fathoni Usman1, Rohayu Che Omar1, and Khairul Amri Sanusi2 1 Institute of Energy Infrastructure, Universiti Tenaga Nasional, Kajang, 43000, Malaysia 2 Grid Solution Expertise, Grid Division, Tenaga Nasional Berhad (TNB), Malaysia  [email protected] ABSTRACT The soil in different regions has many fundamental problems, including high ground table water, deformation of highly compressive clays, peat, etc. Most areas of these zones are waterlogged, swampy, and characterized by weak soils, making it difficult to structure them without addressing the stability of such structures. In many cases, soil conditions and soil materials are not ideal for the proposed or planned development. In such cases, the geotechnical engineer will consider how to resolve possible issues with feasible solutions carefully. In this paper, we present work resulting in the development of software that is used as a tool to guide and select the type of improvement and soil assessment. It allows users to learn about soil improvement and ground modification in engineering practice while providing the user with a tool that

2ND ICDM 2020 45 helps to solve soil improvement problems. An expert opinion was designed and conducted to obtain the weigthed matrix for evaluation selection of improvement type based on a certain criteria. A Software Development Life Cycle (SDLC) was followed and in term of design, implementation, testing and evaluation was conducted. The evaluation result based on System Usability Scale was conducted and evaluated and the result show that proposed tool was accepted and suitable to use by end user.

ICDM-1339 INVESTIGATION OF UNSTABLE SOIL STABILIZED USING FLY-ASH CEMENT GROUTING Kavindu Jayasinghe1, Vivi Anggraini2, Agusril Syamsir3, Nanda 4 1School of Engineering, Monash University Malaysia, Malaysia 2Lecturer, School of Engineering, Monash University Malaysia, Malaysia 3Senior Lecturer, Institute of Energy Infrastructure (IEI), College of Engineering, Universiti Tenaga Nasional, Malaysia 3Senior Lecturer, Institute of Energy Infrastructure (IEI), College of Engineering, Universiti Tenaga Nasional, Malaysia 4Lecturer, Faculty of Engineering, Universitas Putra Indonesia YPTK, Indonesia  [email protected] ABSTRACT The deep soil with a relatively poor compressive strength has been an issue for the researchers and constructors for years since the hardships faced by them when trying to construct heavy structures on top of them. It is found that weak soils like those can be strengthened by adding different additives. Fly ash is commonly used for the above purpose but, since it’s expensive to use alone, cement mixed with fly ash was tested with different soils to strengthen them. The aim of the research was to find out the increase/decrease of strength when two different cement and fly ash mixtures were mixed with three different types of soils common in Malaysia in different proportions and to find the optimum percentages of each mixture to be mixed with each soil to obtain a desired strength. The Modified Standard Proctor test and the Unconfined Compressive Strength (UCS) tests were carried to study the behaviour and strength of the soils when mixed with the above additives.

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ICDM-1341 FLOOD HYDROGRAPH SIMULATION TO ESTIMATE PEAK DISCHARGE IN CILIWUNG RIVER BASIN M I Pratama1, F I W Rohmat2, M Farid2,3, M B Adityawan2, A A Kuntoro4 and I R Moe5 1Graduate School of Civil Engineering, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Jl. Ganesha No. 10 Bandung 2Water Resources Engineering Research Group, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Jl. Ganesha No. 10 Bandung 3Center for Coastal and Marine Development, Institut Teknologi Bandung, Jl. Ganesha No. 10 Bandung 4Center for Water Resources Development, Institute for Research and Community Services, Institut Teknologi Bandung, Jl. Ganesha No. 10 Bandung 5Directorate General of Water Resources, Ministry of Public Works and Housing, 12110 20th Pattimura Street, Kebayoran Baru, Jakarta Selatan  [email protected] ABSTRACT Ciliwung River Basin is one of 13 watersheds located in the Special Capital Region of Jakarta (DKI Jakarta), one of the most vulnerable cities facing flood disaster. Modeling hydrographs in a flood computer model is a crucial process in understanding the hydraulic processes in floods; however, more often than have adequately not studied watersheds do not available observed data. Well- calibrated hydrographs serve as the basis for a basin-wide flood model. In this study, the Snyder, ITB, and SCS Unit Hydrograph are constructed in the study case of flooding in the Ciliwung River Basin, with West Java rainfall distribution method and Alternating Block Method as the adopted rainfall distributions, providing six combinations of approaches. Calibration and validation analysis show a combination of West Java rainfall distribution and SCS UH with a lag time of 5.5 gives the smallest deviation, with an accuracy of 83.3%, therefore it is recommended for use to estimate design future flood hydrograph.

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ICDM-1342 SUSTAINABILITY OF THE CLIMATE VILLAGE PROGRAM TO PREVENT THE IMPACT OF CLIMATE CHANGE ON WATER SUPPLY AND SANITATION: A PERSPECTIVE FROM THE PESTLE ANALYSIS Putri Nilam Sari1, Aria Gusti1, Nofriya2, Ismike Suci3, Mahesa Pratama1 1Department of Occupational and Environmental Health, Faculty of Public Health, Andalas University 2Environmental Engineering Study Program, Padang College of Industrial Technology (STTIND Padang) 3Masters Program in Environmental Sciences, Padang State University  [email protected] ABSTRACT The issue of water sustainability and sanitation has developed in recent years, and it is predicted that by 2030 there will be increasing crises. In accordance with the six SDG's objectives, it needs some efforts to ensure the sustainability of clean water and sanitation. The climate village program is one way to increase public awareness of the environment, especially providing clean water and proper sanitation and avoiding uncertain climate threats. This research conducted with a qualitative approach using PESTLE analysis in a village that was officially a 'climate village.' In this village, the spirit of community cooperation is good enough. Still, it requires a more specific division of responsibilities and financial assistance to provide clean water and sanitation technology that is resistant to climate disruption.

ICDM-1343 NORMALIZING THE RIVER OF CISANGKUY TO REDUCE THE FLOOD RISK IN THE FUTURE Abdul Chalid1, Bagus Prasetya2, Ivan Aliyatul Humam3, Muhammad Luthfi Assidik4 1Lecturer of Civil Engineering Department, Sangga Buana YPKP University,Bandung Indonesia 2Graduate of Civil Engineering, Bandung Institute of Technology,Bandung, Indonesia 3Graduate of Water Resources Management, Bandung Institute of Technology, Bandung, Indonesia

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4Undergraduate of Water Resources Engineering and Management, Bandung Institute of Technology, Bandung, Indonesia  [email protected] ABSTRACT The rapid population growth has made residential land more widespread. causing the surface water runoff getting bigger and coupled with the narrowing of the river cross-section by sediment so that the river's capacity is no longer able to accommodate the existing flood discharge. This study aims to reduce the risk of flooding in the Cisangkuy river. Modeling was carried out using HEC-RAS 2D. Modeling results in the existing conditions show that water has flowed into the residential area. Handling in the form of normalization of the Cisangkuy River as an appropriate alternative for reducing flood risk. After normalization, there was a decrease in the water level in the upper reaches of the Cisangkuy river from an altitude of 672.13 masl to 667.85 masl and in the middle of the Cisangkuy river it fell + 3.3 meters. which was originally from an altitude of 668.57 masl to 665.21 masl. The improvement of the Cisangkuy River has had a significant impact on the flow of the Cisangkuy tributary and the urban drainage system around the area. So that the Cisangkuy River can accommodate the discharge and the risk of urban flooding can be reduced. With this risk reduction, flooding that has an impact on the social, economic, and health sectors can be controlled and can be focused on future urban problems.

ICDM-1344 TSUNAMI EVACUATION GEOGRAPHIC INFORMATION SYSTEM (GIS) EDUCATION AS DISASTER MITIGATION Sularno, Dio Prima Mulya, Renita Astri Information System Departemen, Universitas Dharma Andalas, Jalan Sawahan 103A, Padang  [email protected] ABSTRACT Padang City is the largest city on west coast of Sumatra and capital city of West Sumatra, Indonesia where it directly adjacent to Indian Ocean. Because of its position, the people are shadowed by fear and felt threatened when earthquake occurred. If earthquakes and tsunamis ever happened, the people need information of safe zone that in reach to evacuate their families and their

2ND ICDM 2020 49 own self. If someday the calamity happened, with proper education system the society will be able to anticipate the occurring events. Researcher create a Geographic Information System (GIS) with A-Star algorithm method. A-Star Algorithm using nearest distance available to reach destination and have heuristic value for consideration. In this system include alternative route, total capacity, and distance to the selected shelter. In this research, researcher using descriptive method to collect data, evacuation route, and tsunami shelter around Purus, Padang. With this system the people are expected to have sufficient information about tsunami evacuation route as means to minimalized casualties.

ICDM-1348 OPTIMUM HEIGHT OF THE RETAINING GRAVITY WALL Fathol Bari1, Julita Andrini Repadi1, Abdul Hakam2, Febrin Anas Ismail2, Andriani2 1Doctoral Program, Dept. Of Civil Eng., Faculty Of Engineering, Andalas University, Indonesia 2Lecturer, Dept. Of Civil Eng., Faculty Of Engineering, Andalas University, Indonesia  [email protected] ABSTRACT Indonesia is one of the multi-disaster-country which one of the major disasters is landslide. The impacts caused by landslide consist of material and non- material loss. The effort that can be done to deal with landslide is by slope reinforcement or retaining walls. However, for the past few years, there was many failure cases of retaining walls caused by some factors, which are soil condition, planning design that did not meet the safety requirements, and the lack of knowledge or indecisiveness towards the selection of the retaining walls type for a specified height. In this research, the optimum height of a retaining wall of gravity wall type for sandy soil was planned. The research methodology was done by calculating external and internal stability from a stone gravity

2ND ICDM 2020 50 retaining wall. From the external stability analysis of 4 - 14 meters heights, it is known that the retaining wall still safe. The internal stability analysis obtained from 8 meters heights did not meet the safety requirements. Therefore, it is recommended from the research to use the height of 7 meters for the stone gravity retaining wall. The optimum height of retaining wall is planned in this research as the guidelines for engineers in planning the right retaining wall for the height as planned.

ICDM-1351 ESTABLISHING TSUNAMI HAZARD ZONE IN PASIR JAMBAK SUB- DISTRICT, IN PADANG, INDONESIA Leli Honesti, Muhd Zaimi Abd Majid, Meli Muchlian Department of Civil Engineering, Faculty of Civil Engineering, Institut Teknologi Padang, Indonesia  [email protected] ABSTRACT A tsunami hazard is an adverse event that causes damage to properties and loss of life. The problem in assessing a tsunami risk zone for a small area is significant, as available tsunami inundation zone data does not give detailed information for tsunami inundation and run-up in every nested grid. Hence, the aim of this study is to establish a tsunami risk zone in a small area, in a study area site. Here, the study area is in the Pasir Jambak sub-district in Padang, Indonesia. The map was carried out in every nested grid point of the area and on a large scale (1; 5,000). The study should provide a zone that most accurately predicts the desired value for the data. The first step of this study is to determine some parameters for tsunami simulations. Tsunami assessment was made through simulations in nine scenarios of fault parameter data for Sipora block earthquakes. The scenarios used several parameters, including earthquake sources and tsunami parameters. In this case, software programs were used to simulate tsunami waves and provide information about inundation and run-up height,. The second step of this result is to provide a map. The map includes more detailed information for tsunami inundation and run-up in every nested grid and on a large scale. Furthermore, this tsunami inundation map can be used for communities, local authorities, government, and others for many studies, and decision-makers can come up with mitigation plans for a small study area.

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ICDM-1352 GEOTECHNICAL PROPERTIES OF UNPROCESSED SOIL FROM ABANDONED MAMUT MINE IN SABAH, BORNEO Jodin Makinda1,2, Khairul Anuar Kassim1, Chong Chun Siong3, Muttaqa Uba Zango1, Abubakar Sadiq Muhammed1 1School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia 2Faculty of Engineering, Universiti Malaysia Sabah, 88400, Kota Kinabalu, Sabah 3Faculty of Bioscience and Medical Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia  [email protected] ABSTRACT The issue related to the geotechnical stability of land mining area in Malaysia had become more critical after a strong earthquake struck Sabah, Borneo in 2015 centred in Ranau District where Mamut copper mine is located. As part of safety assessment and future planning, knowledge of soil characteristics in this risky area is necessary. This paper presents some findings on geotechnical properties of unprocessed soil obtained from the abandoned mine. Results found that Mamut soil can be classified as SW and has higher coarse-grained percentage (97.4%) compared to other copper mines elsewhere. The soil also has higher permeability (3.61 x 10-3 m/s), lower organic content (0.15%), lower pH (4.53), higher specific gravity (2.75) and higher maximum dry density (1780 kg/m3). Mamut soil is found to be cohesionless, while the angle of friction shows a variation with the relative compaction. Chemical analysis shows that SiO2 and C12H10MgO6S2 are the two predominant compounds of the soil. Morphologically, Mamut soil appears to be composed of powdered and hardened particles with dark brown colour. They contain higher amount of irregular-shaped particles but well-rounded and spherical shapes are also observed. Smooth surfaces with no agglomeration between particles indicates that the strength value of the soil is low due to the weak bonding between the loose grain structure. These findings suggest that Mamut soil is suitable for chemical stabilisation or remediation method such as microbiologically induced calcite precipitation (MICP).

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DELINEATION OF FLASH FLOOD HAZARD ZONES BASED ON MORPHOMETRIC PARAMETERS USING GIS TECHNIQUE IN UPPER LEMATANG SUB-WATERSHED A Dinata, F Dhiniati, L E Diansari Civil Engineering Study Program, College of Technology Pagar Alam, 75 Masik Siagim Street – 31521, Pagar Alam City, South Sumatera, Indonesia  [email protected] ABSTRACT The hilly and mountainous topography with high annual rainfall triggered a flash flood in the upper Lematang sub-watershed. The impact caused not only damaged infrastructure, agriculture land, and even fatalities. This research aimed to conduct flash flood hazard zoning using morphometric parameters using GIS technique. By extracting the DEM data then it is generated to a slope map, flow direction, flow accumulation, stream order, and watershed boundary. The data was evaluated to obtain the upper Lematang sub- watershed morphometric parameters. Parameters analyzed using the PCA approach to obtain the correlation between parameters related to flash flood hazard. From 16 morphometric parameters, 12 parameters had a sufficient level of intercorrelation with KMO value of 0.66 and significant 0.001<0.05. The result of the PCA analysis, two factors were obtained with an eigenvalue > 1 and the cumulative percentage of the two factors was able to explain data variations of 87.49%. Finally, by using 12 parameters the area of upper Lematang sub-watershed had 48.79% very high zones, 16.48% high zones, 20.28% moderate zones, 0.97% low zones, and 13.48% very low zones. The results of this study can be used in mitigation activities as well as for integrated watershed management.

ICDM-1354 UNDERSTANDING IMPORTANT VARIABLES FOR MODE PREFERENCE; A CASE STUDY OF INTERCITY LAND MODE Angelalia Roza1,2, Mohamed Rehan Karim2, Aditia Nugraha Rusli3, Andi Mulya Rusli4 1Lecturer, Civil Engineering Department, Faculty of Engineering, Institute Technology of Padang 2Professor, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.

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3Post Graduate Student, Urban and Regional Planning, , Indonesia. 4The Ministry of Public Works and Public Housing (PUPR), Indonesia 5Center for Transportation Research, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.  [email protected] ABSTRACT This study aims to describe factors that influenced the mode preference for intercity land movement in Malaysia. Bus and train as intercity land public transport service was observed during the construction of the ETS (Electric Train Service) project in Malaysia. This study adopted a qualitative research study using the Revealed Preferenced data and crosstabs procedure. The reliability test has been used over 17 questionnaire items to measure the consistency of the questionnaire. The result indicated that the overall reliability of the questionnaire is reliable. To evaluate the adequacy of the sample size, the factor analysis had conducted. The Kaiser-Meyer-Olkin (KMO) and Bartlett's test value significantly verified the sampling adequacy for the sample analysis. A lesson learned from KL- Ipoh corridor that the improvement of railway service (ETS) creates changing on the train utility, contributes impact to air mode shifting and changing on bus mode ridership. This research highlighted that the variable of fare, travel time, mode accessibility, departure frequency, and mode availability are the crucial factors that influenced user preference for intercity land movement. The completion of the ETS double- tracking project is predicted to affect the mode's ridership in the KL - Penang corridor, and pursue a competition between intercity land transport modes. This finding can be beneficial for setting future strategy on the particular intercity modal goals related to issue for sustainability and subsidize policy.

ICDM-1355 DISASTER RESILIENCE MEASUREMENT IN PADANG'S HOTEL SECTOR Prima Fithri, Zakia Aliffiana Ulfa

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Industrial Engineering Department, Andalas University, Limau Manis, Padang, 25166, Indonesia  [email protected] ABSTRACT Padang city is the administrative center of West Sumatra Province, which is located in a zone of high-level danger from the earthquake and tsunami. It has many tourist destinations. To support the growth of the tourism sector, lodgings like hotels are needed. Besides, hotels are also used for Meetings, Incentives, Conferences, and Events (MICE) by private groups and government. Currently, the disaster resilience program is being promoted both for community, agencies, and the private sector. Disaster Resilience Framework for Hotels (DFRH) is a concept of measuring disaster resilience based on six categories of predictor capital groups, namely: social, economic, human, physical, natural, and cultural. The measurements were made by distributing questionnaires to staff and managers at three large hotels in the city of Padang. The data obtained were processed using (DFRH). For the level of hotel disaster resilience measurement from the staff side, the average agreement is 82%. Then from the manager's point of view, the measure of total agreement obtained by 86%.

ICDM-1356 LOCAL AND INDIGENOUS KNOWLEDGE AND ITS IMPORTANCE TO SUBSISTENCE FARMERS TO REDUCE THE RISK OF FOOD SECURITY IN THE GAMBIA Edward Mendy1, Syamsidik1,2, and Khairul Munadi1,2 1 Disaster Sciences Master Program, Universitas Syiah Kuala, Jl. 2Tsunami and Disaster Mitigation Research Center (TDMRC), Universitas Syiah Kuala, Jl. Prof. Dr. Ibrahim Hasan, Gampong Pie, Banda Aceh, 23233 Indonesia  [email protected] ABSTRACT Indigenous knowledge has been developed and accumulated, over time, by a community. It has been passed down over generations, which is represented in most spheres of human activity, such as in agriculture and traditional medicine. The impacts of disaster on the agricultural sector are obvious; thus, there is a need to look at how those threatening hazards to food self-security in The Gambia are managed by local wisdom of subsistence farmers. This can

2ND ICDM 2020 55 be done by finding out the subsistence farmers' local and indigenous knowledge (LINK) and its importance to farmers and farming. This paper aims at identifying LINK and its importance to subsistence farmers in West Coast Region and giving recommendations on how to use the available LINKs to help mitigate the food insecurity in the country, thus reducing malnutrition, which can lead to high risk of diseases infection. The research was performed employing qualitative research by applying a series of in-depth interviews and triangulation processes. The research also explored the farmers' view on the importance of LINK to the agricultural sector. The study results showed some types of farmers' local wisdom, which are used in pre-planting, planting, and post-harvest activities.

ICDM-1358 URBAN POVERTY RESPONSE MANAGEMENT DURING PANDEMIC USING GEOGRAPHIC INFORMATION SYSTEM Hamim S A1, Usman F2, Gumano H N1, Jamil F3 1Universitas Indo Global Mandiri, Jalan Jenderal Sudirman 629 Km 4 Palembang, 30129, Indonesia 2Institute of Energy Infrastructure, Universiti Tenaga Nasional, Kajang 43000, Selangor, Malaysia 3BAPPEDA LITBANG, Palembang, Indonesia  [email protected] ABSTRACT COVID-19 pandemic has influenced various aspects of community activities, such as health, education, socioeconomic. The effect of economic activities has caused many people to experience a decrease in income and loss of work due to the laid-off of informal workers. Overall, this unprecedented situation has led to an increase in the new poverty rate. In Palembang City, based on the Non –DTKS data (Integrated Social Welfare Data), the number of new poor people affected by the COVID-19 pandemic is 30,765 people. Therefore, the new poor people need to be responded immediately, and the distribution of aid needs to be followed up. This paper presents the development of a web- based operation dashboard in Geographic Information System to map the distribution of people categorized with poverty and new poor affected by the pandemic. The operational dashboard functioned as aid distribution activities monitoring. The type of aid, the number of people that received the aid are

2ND ICDM 2020 56 recorded with the geotagging capabilities. By having this system, the community centers set up by the sub-district office will have an operational dashboard to monitor activities in providing geospatial information and examine the aid distribution.

ICDM-1359 THE COMMUNITY CAPACITY TO RESPOND TO EARTHQUAKES AND TSUNAMI THREAT IN AIR TAWAR BARAT SUB-DISTRICT, PADANG CITY, WEST SUMATRA, INDONESIA R Imani, U D Arman, A Sari Department of Civil Engineering, Universitas Putra Indonesia YPTK Padang, West Sumatra  [email protected] ABSTRACT Padang city is one of the areas most susceptible to the threat of earthquakes and tsunamis in West Sumatra, Indonesia. This region is at the confluence of the Eurasian and Indo-Australian plates which are the epicenter of sub- duction earthquakes in the middle of the sea. Earthquake disasters that can pose a tsunami risk cannot be predicted when they occur. Based on this condition, all levels of society need to be given knowledge and good ways of responding to possible disasters to increase the capacity of citizens to deal with the threat of the earthquake and tsunami. This study aims to identify a general picture of how to respond to, knowledge, and the extent of community capacity to deal with the tsunami disaster in Air Tawar Barat District, Padang City, West Sumatra Province. This research is a qualitative research used primary and secondary data. Primary data were collected through interviews with respondents with several questions relating to disaster knowledge. Secondary data were taken from the documents at the Air Tawar Barat Sub-district and Kelompok Siaga Bencana (KSB) offices, as well as related previous studies. Based on the result, it was concluded that the majority of the population in the Sub-district of Air Tawar Barat had a good response and capacity to the tsunami threat that might occur, but did not yet have good communication and coordination method with the Government or Regional Agencies. Furthermore, a well method of communication and coordination between local people and related local institutions is greatly needed.

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ICDM-1360 IMPACT OF PANDEMIC COVID-19 FOR VARIOUS SECTORS IN INDONESIA 2020: EDUCATION, HEALTH, AND INDUSTRIAL R Salam1, C Rahmawati2, A A Pramutri3, M L Oktarianto4, and E Larosa5 1Faculty of Engineering. Department Industrial Engineering, Medan Area University, Medan, Indonesia. 2Faculty Technology of Engineering, Department Industrial Engineering, Dirgantara Marsekal Suryadarma University, Jakarta, Indonesia, 3DPR RI, Jakarta, Indonesia, 4Faculty of Teacher Training and Education, Department of Primary School Teacher Education, Muhammadiyah Gresik University, Indonesia. 5Education of Mechanical Engineering, Yogyakarta State University, Indonesia  [email protected] ABSTRACT This study aims to study the impact of the COVID-19 pandemic on three sectors (education, health, and industry), research conducted using qualitative methods with the term social situation as well as with sources of information not using the term respondents using informants. The results obtained from this study, (1) In the industry sector, the Ministry of Industry is required to formulate policies intended to improve the industrial sector associated with the COVID-19 pandemic. (2) In the education sector, this pandemic forces teachers from primary until college levels of education to maximize their ability to operate online technology in each of their learning. The positive impact is that implementing the learning system at home can break the chain of transmission of the COVID-19 virus. The negative impact felt by students is the ineffectiveness of online learning methods because between teachers and students cannot discuss actively and are hampered by time constraints on some online learning applications. (3) In the health sector, there are still many people who are not honest in reporting their health and history. Other impacts

2ND ICDM 2020 58 received by medical staff included a decrease in income and even some employees were laid off.

ICDM-1361 THE PREPAREDNESS OF COMMUNITIES AROUND CILACAP INDUSTRIAL COMPANIES IN FACING TSUNAMI TREATS Faisol Abdul Kharis, IDK Kerta Widana, Arief Budiarto Indonesia Defense University, Disaster Management Study Program, Bogor 16810 Indonesia  [email protected] ABSTRACT Some vital industries in Cilacap Regency, such as PT Pertamina (Persero) Refinery Unit IV Cilacap, PT Solusi Bangun Indonesia Tbk Cilacap Factory, PT Dharmapala Usaha Sukses Cilacap, and PT Pupuk Sriwidjaja Palembang Fertilizer Empowerment Unit Cilacap is located close to the southern coast of Java that has the potential to be exposed to tsunami. If the industrial company is affected by the tsunami, it can create a cascading effect and have a direct impact on the surrounding community. The cascading effect such as technological failure, explosion, fire, release of hazardous substances to the spread of chemicals that can endanger the environment and society. The purpose of this study is to analyze the preparedness of the communities surrounding the industrial companies in facing the tsunami threat and its subsequent dangers. This study uses descriptive qualitative research method by using a case study approach by conducting interviews with key informants related to the field of prevention, preparedness and work safety in each company and officials of the Local Government of Cilacap Regency. Data collection was also carried out using a questionnaire method that was filled out by people around the industrial companies. The results showed that the average value of the preparedness index of the community around industrial companies in Cilacap was 71.70, which was included in the “Ready” category.

ICDM-1362 ESTIMATING DETERIORATION RATE OF A BRIDGE USING CHANGES IN NATURAL FREQUENCIES Maizuar, Said Jalalul Akbar

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Department of Civil Engineering, Universitas Malikussaleh, Aceh, Indonesia  [email protected] ABSTRACT Significant increased demand in heavy traffic loads towards longer and heavier vehicles could lead to an increase rate of bridge structural deterioration. This paper presents a methodological framework which can be used to estimate deterioration rate of a bridge using accelerometer sensor measurements. Deterioration rate is quantified using changes in natural frequencies of the bridge because it correlates with the reduction in structural capacity of a bridge. Using a case study bridge in Aceh Indonesia, the results of study show that dynamic monitoring framework using accelerometer sensor can be used to estimate deterioration rate of a bridge and ultimately the prediction of bridge residual life.

ICDM-1365 STUDY ON BUILDING PERMIT AWARENESS IN WEST SUMATRA, INDONESIA Eka Juliafad1,2, Totoh Andayono1 1Civil Engineering Department Universitas Negeri Padang 2Civil Engineering Department The University of Tokyo  [email protected] ABSTRACT This study aims to understand the level of awareness and competency of building officers in Indonesia regards to the implementation of building permit systems. The study area is West Sumatra, Indonesia. Understanding the situation experienced by building officers is significant, considering their important role in guaranteeing the quality of building, especially in an earthquake-prone area. The method used in this study is interviewing building officers in 6 sub-districts in the target district. Interview conducted using question and answer sheet, as well as collecting related building permit documents to support the results and improve the understanding of building construction process. The results show that 70% of the building official is lack of understanding and capacity to conduct their job. Indicators of the level of education in which more than 30% only graduated from high school and not more than 10% got the opportunity to strengthen their technical knowledge about building construction. 80% of staff never read building law no.28 the

2ND ICDM 2020 60 year 2002, and 70% never read the technical guidance of building construction PP no.36 the year 2005. This study provides essential information for the Indonesia government as a basis to improve the quality of building officers.

ICDM-1366 MULTI-HAZARD ASSESSMENT AND SHELTER ALLOCATION IN DKI JAKARTA: AN INITIAL STUDY Fritz Harland Sihombing Calvin Institute of Technology, Calvin Tower RMCI Jl. Industri Blok B14, RW.10, East Pademangan, Kemayoran, North Jakarta City, Jakarta 10610  [email protected] ABSTRACT Multi-hazard assessment extends the traditional disaster hazard assessment. It provides an exhaustive view of disaster hazard management where all possible disasters are observed. More importantly, the interaction and compounding impact of the concurrent disasters event should be understood thoroughly. Until now, hazard assessments of all possible disaster events in DKI Jakarta are estimated separately. This study aimed to initiate a multi- hazard assessment of earthquakes and floods for urban areas in DKI Jakarta. A scenario-based concurrent disaster event is created, that is the sequence of earthquake and flood occurrence, and its impact is studied using multi-criteria analysis. The evacuation shelters are proposed within the affected area and the shortest path for disaster reliefs are estimated using the shortest path algorithm. The areas with high level multi-hazards should carefully plan their disaster mitigation and recovery management plan to prepare the society for the concurrent disaster event and ensure their resiliency.

ICDM-1370 WOMEN EMPOWERMENT IN POST- DISASTER RECOVERY AFTER 2018 TSUNAMI IN SUMUR REGENCY PANDEGLANG DISTRICT N I Rahmatika, S K Sakti, A Boediarto Indonesia Defense University  [email protected] ABSTRACT

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During an earthquake, Reinforced Concrete (RC) building structure should behave in a ductile manner to prevent from collapses. Therefore, the column element should have sufficient ductility to sustain axial load at the post-peak region. Ductility of the RC column can be sufficiently provided by confinement to the RC column core. Therefore, in this paper, ductility of the square RC columns made of NSC and HSSR are being analyzed using nonlinear finite element analysis (3D-NLFEA) with various ties configurations. In total, there are 12 specimens for each ties configuration. The ductility measures used for comparisons is the I10 index (AS 3600-2018) and is compared with the concept of ductility available in the literature (for example ACI 318-19). This study results computation of minimum lateral bar diameter of column specimen according to ACI 318-2014 has a bigger diameter than the requirements of AS 3600:2009. Furthermore, the minimum confinement diameter has decrease each increnement of rebar strength. In addition, when the rebar stress is increased the stress peak decreases. Decreasing the requirement of lateral bar diameter at each increase of strength steel rebar also results in ductility and the value of ductility index (I10) each the specimen decreases.

ICDM-1373 APPLICATIONS OF CONSTRUCTED WETLANDS AND HYDROPONIC SYSTEMS IN PHYTOREMEDIATION OF WASTEWATER H M Mustafa1, G Hayder2,3, Mahmud Iwan Solihin5, Rashid A Saeed6 1College of Graduate Studies, Universiti Tenaga Nasional (UNITEN), 43000Kajang, Selangor Darul Ehsan, Malaysia. 2Department of Chemistry, Kaduna State University (KASU), Tafawa Balewa Way, Kaduna, Nigeria. 3Institute of Energy Infrastructure (IEI), Universiti Tenaga Nasional (UNITEN), 43000 Kajang, Selangor Darul Ehsan, Malaysia 4Department of Civil Engineering, College of Engineering, Universiti Tenaga Nasional (UNITEN), 43000 Kajang, Selangor, Malaysia. 5Faculty of Engineering, Technology and Built Environment, UCSI University, Jalan Puncak Menara Gading, Taman Connaught, Kuala Lumpur 56000, Malaysia 6Electronic Engineering School, Sudan University of Science and Technology, Khartoum, Sudan.  [email protected]

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ABSTRACT Increase in population and urbanisation alongside demands from agricultural sector towards meeting fresh produce needs of the growing population has put severe pressure on the available natural water sources all over the world. Thus, water is undoubtedly the most contemporary crucial resources in the world. Aquatic weed plants are generally seen as a global threat to humans and aquatic ecosystem as they cannot be wholly eliminated easily. Still, various researchers and investigations have shown that they are instrumental in the field of wastewater phytoremediation, either in constructed wetlands, open ponds or hydroponic systems in an eco-friendly and economical manner with little or no sludge waste. In view of the increasing search for an alternative source of a sustainable method for wastewater reclamation, this study presents a concise review of relevant literatures on the roles of constructed wetlands and hydroponic systems in phytoremediation of wastewater. Also in the course of this study, the authors discovered that constructed wetlands and hydroponic systems have proven to be productive in remediating an array of water quality problems, with merits over the regular wetlands and conventional methods. Nonetheless, these methods are endowed with drawbacks such as inconsistency in the absorption of contaminants, large area space requirement, over dependency on environmental conditions and energy requirement. However, we suggest the use of engineered hybrid to improve its efficiency in wastewater treatment and bioenergy generation. In the case of hydroponic systems, an alternative sustainable solar energy or devices can be used to power the systems to obtain effective results at a low cost. However, further studies can be employed in the use of phytoremediation technique for synchronous remediation of wastewater and production of biomass on industrial scale.

ICDM-1374 SLOPE STABILITY ANALYSIS FOR LANDSLIDE MITIGATION IN SATUI, TANAH BUMBU, SOUTH KALIMANTAN A’isyah Salimah Civil Engineering, Politeknik Negeri Jakarta, Prof. DR. G.A. Siwabessy Street, Depok, Jawa Barat. 16425  [email protected] ABSTRACT

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Satui is a Tanah Bumbu sub-district of which is in the territory of South Kalimantan yielding mainly coal. The illegal and uncontrolled coal mining formed a steep slope in this area. The slope was exactly shaped close to a telecommunication tower building and other buildings. The excavation in this area leaded an eroded and imbalance slope thus triggering a lanslide. This research is aimed to deal with erosion prevention and disaster risk reduction to mitigate the environmental impact. The investigations of slope and soil condition are used to obtain soil data as the first stage of research. The second stage is analizing the slope stability toward soil data. A stable slope condition is indicated by existing analysis with FoS 1.66. Yet to avoid future disaster risk, slope reinforcement by employing GeoAnchor is performed. The last stage is executed by implementing proposed drainage and slope surface formation.

ICDM-1377 SEISMIC VULNERABILITY ASSESSMENT OF THREE SPANS GIRDER BRIDGE IN KURANJI – PADANG BY DEVELOPING FRAGILITY CURVE Masrilayanti, Rahmadona, and Ruddy Kurniawan Department of Civil Engineering, University of Andalas Padang. Indonesia  [email protected] ABSTRACT Bridge plays an important role as a connecting road network for emergency response activities and evacuation routes at the moment after earthquake. Bridge is also the main route for transporting commodity goods. A prestress concrete I girder (PCI) multi span bridge which is located on high risk of earthquake, Bypass Road, Kuranji Village, West Sumatra Province-Indonesia, is one of important bridge. The bridge is located on a main route from Teluk Bayur Port to Minangkabau International Airport. In addition, this bridge has been planned before 2016 where the earthquake load regulation was smaller than the earthquake required by the latest one. Therefore, to find out the level of damage stage that might occur due to earthquake on the bridge, it is necessary to have a tool, namely the fragility curve that developed by using lognormal distribution function based on structural responce from pushover analysis and nonlinear time history analysis. The results of the study showed that when the respose spectrum target occurred, the bridge damage category based on HAZUS grouping was a Moderate category. Then, from fragility curve

2ND ICDM 2020 64 that had been developed, the probability of exceeded damage level for the HAZUS category of Slight, Extensive and Complete damage can also be known. ICDM-1378 MULTI HAZARD PERCEPTION DURING COVID-19: EVIDENCES FROM RURAL COMMUNITIES IN WEST SUMATRA, INDONESIA A U Fitrah1, Mahdi2, L Triana2, A Nugroho3,4 1 Graduate Program of Regional and Rural Development. Andalas University, Padang, Indonesia 2 Dept. of Socio-economic of Agriculture. Andalas University, Padang, Indonesia 3 Tsunami and Disaster Mitigation Research Center. Universitas Syiah Kuala, Banda Aceh, Indonesia 4 Faculty of Agriculture. Universitas Syiah Kuala, Banda Aceh, Indonesia  [email protected] ABSTRACT Risk perception in multihazard environment improves the ability of risk prioritization management. The undertaken approaches to reduce the negative impacts of the disaster differ from the single hazard’s effects. This work uses an online survey targeting West Sumatra-Indonesia farmers, aiming to provide a better understanding of their perception of different natural hazards during covid-19 pandemic. Descriptive statistical results show that drought and earthquake were perceived to have proportionally greater effect on rural communities. Unlike urban areas, rural characteristics have created barriers for the covid-19 to spread. As a result, economic sector is considered as the most important factors in comparison to health. Labor migration and social conflicts become more apparent whereas farmer groups were absent in providing basic supports to their members. Likely, borrowing cash from relatives and financial institution would be the most applicable option to reduce farmers’ vulnerability.

ICDM-1379 CLIMATE-SMART AGRICULTURE: MITIGATION OF LANDSLIDES AND INCREASING OF FARMERS' HOUSEHOLD FOOD SECURITY S Jumiyati1, A Hadid2, B Toknok3, R Nurdin4, T A Paramitha5 1Agribusiness Department, Agriculture Faculty, Universitas Muhammadiyah, Jl. Jabal Nur No. 1 Palu, Central Sulawesi, Indonesia

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2Agrotech Department, Agriculture Faculty, Universitas Tadulako, Jl. Soekarno Hatta Km. 9 Palu, Central Sulawesi, Indonesia 3Forest Management Department, Forestry Faculty, Universitas Tadulako, Jl. Soekarno Hatta Km. 9 Palu, Central Sulawesi, Indonesia 4,5Forest Management Department, Agriculture Faculty, Universitas Muhammadiyah, Jl. Jabal Nur No. 1 Palu, Central Sulawesi, Indonesia  [email protected] ABSTRACT The application of the Climate Smart Agriculture (CSA) concept is an effort to improve food security as well as mitigate landslides in watershed areas. This study aims to determine the coefficient value of runoff that can cause landslides, risk criteria, and the level of vulnerability in the event of landslides as well as the criteria for household food security of farmers. The results showed that farmers who diversify tree crops (cacao) and food crops (cassava and sweet potato) can reduce the risk and vulnerability of landslides as well as improve the household food security conditions of farmers. Soil and water conservation through an agro-ecosystem approach can increase food production, farmer income, job opportunities, and the quality of community nutrition as well as the welfare and food security of farmer households around the forest.

ICDM-1381 SEISMIC ASSESSMENT OF IRREGULARITIES IN STEEL SPECIAL MOMENT RESISTING FRAME WITH ASYMMETRIC-PLAN BUILDING (CASE STUDY: GEDUNG D – UNIVERSITAS DHARMA ANDALAS) Ridho Aidil Fitrah1, Deni Irda Mazni1, Welly Pratiwi1, Zev Al Jauhari2 1 Civil Engineering Department, [Universitas Dharma Andalas] 2 Civil Engineering Department, [Politeknik Negeri Bengkalis]  [email protected] ABSTRACT The limitation of land is becoming the issue where the symmetric-plan building could not always be the proper choice. Besides that, the demands of architectural and esthetical construction also quickly increase. Then, there is the possibility where asymmetric-plan building will be the choice, in this case Gedung-D Universitas Dharma Andalas. But, designing asymmetric-plan building is having obstacle where the past studies revealed that the damage

2ND ICDM 2020 66 under strong ground motion become the major problem. It because the asymmetric-plan will lead excessive torsion due to the horizontal irregularities or soft-story issue due to vertical irregularities. Then, it certainly affects the stability of structure. This research conducted the seismic assessment of asymmetric-plan 5-story building where Gedung-D Universitas Dharma Andalas, Padang will take place. The assessment is conducted by modeling three dimensional steel special moment resisting frame with seismic design category-D. Equivalent lateral force is applied to obtain early identification and response spectrum analysis is used in the next procedure to fulfill additional requirements. Based on SNI 1726:2019, the building has been categorized as horizontal irregularities where torsional irregularities and re-entrant corner irregularities mostly happened. It indicates that the other additional requirements need to be reconsidered such as increasing the design force about 25%, the amplified accidental torsions, P-∆ effect. In the other hand, vertical irregularities do not act toward this building. However, there are some inadequate values of inter-story drifts in X-direction toward drift limit. Then, it is concluded that this asymmetric-plan multi-story building needs to be designed in lateral resistance if this will be planned in future and act the good seismic performance.

ICDM-1382 AREA BASED TSUNAMI RISK ASSESSMENT IN WEST ACEH AND NAGAN RAYA REGENCIES Hana Qurrota A’yun1, Vanya Komara Putri1, William Aditya Pramana1, Asrini Chrysanti2, Mohammad Bagus Adityawan3, Mohammad Farid4 1 Undergraduate Student of Water Resources Engineering and Management, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Indonesia 2 Water Resources Engineering Research Group, Institut Teknologi Bandung, Jalan Ganesha 10, Jawa Barat 40132, Indonesia 3 Department of Water Resources Management and Engineering, Institut Teknologi Bandung, Jatinangor, Jawa Barat 45363, Indonesia 4 Center for Coastal and Marine Development Institut Teknologi Bandung, Jalan Ganesha 10, Jawa Barat 40132, Indonesia  [email protected]

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ABSTRACT West Aceh and Nagan Raya Regencies traversed by the active fault zone of Great Sumatran Fault. This makes the area vulnerable to geological disasters such as tsunamis. Great Indian Ocean Tsunamis occurred and struck Aceh in 2004. The disaster caused injuries, loss of life, and economic downturn due to the paralysis of agricultural sector. Therefore, tsunami disaster mitigation effort is highly needed in West Aceh and Nagan Raya Regencies. A risk assessment done based on the Regulation of the Head of the National Disaster Management Agency No. 2 of 2012. This study modifies risk index to provide a more proportional value. Allowing a simple method yet more detail than the general method. The implementation of risk assessment is assisted by HEC-RAS 5.0.7 software to determine the height of tsunami propagation. The simulation done based on earthquake scenario of 8.6 MW based on previous study. Based on this assessment, the area dominantly has a high risk of tsunami. This method proved more detailed and appropriate risk index. Disaster mitigation plans were provided both structural and non-structural approaches. The mitigation plan was expected to reduce the risk of tsunami disaster in West Aceh and Nagan Raya Regencies.

ICDM-1383 ASSESSMENT OF ADAPTIVE CAPACITY TO SEA LEVEL RISE USING OPEN-LOOP SYSTEM, CASE STUDY: CIREBON AND PANGANDARAN Isnan Fauzi1, Randy F Ritonga1, Ivonne M Radjawane2, and Hamzah Latief2 1 Undergraduate Program of Oceanography, Bandung Institute of Technology, 40132, Indonesia 2 Lecture at Oceanography, Bandung Institute of Technology, 40132, Indonesia  [email protected] ABSTRACT This research aims to assess the adaptive capacity of three adaptive strategies applied in Cirebon and Pangandaran by estimating community assets under threat of sea-level rise (SLR) through open-loop system. Firstly, SLR in Cirebon and Pangandaran each month from 2006 to 2100 is simulated using ocean heat flux and ice melting model data by Representative Concentration Pathways (RCP) 8.5, Intergovernmental Panel of Climate Change Assessment

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Report (IPCC AR) 5. This simulation result is then added with ocean phenomena such as tide, Indian Ocean Dipole (IOD), Madden-Julian Oscillation (MJO), storm surge, and Kelvin wave along with their frequencies. By the year 2100, the sea level in Cirebon will reach 115.65 cm and 148.09 cm in Pangandaran. Secondly, the SLR and applied strategies are converted to be inundation maps of community assets. Overall, the result shows the best policy for both regencies is protect which has an adaptive capacity value of 96.30% and 76.65% respectively. But deeper, the adaptive strategy for each district in both regencies differs one to another.

ICDM-1384 EVALUATION OF MECHANICAL AND STRUCTURAL PROPERTIES ON THE DEGRADATION OF TREATED AND UNTREATED COIR, JUTE AND KENAF NETTINGS Vivi Anggraini1, Agusril Syamsir2, Shaikh Muhammad Mubin3, Abdulmalek Mohammed Hussein Sofan4, Jihan Melasari5, Rita Nasmirayanti6 1 Lecturer, School of Engineering, Monash University Malaysia, Malaysia 2 Senior Lecturer, Institute of Energy Infrastructure (IEI), College of Engineering, Universiti Tenaga Nasional, Malaysia 3,4 Student, College of Engineering, Universiti Tenaga Nasional, Malaysia 5,6 Lecturer, Faculty of Engineering, Universitas Putra Indonesia YPTK, Indonesia  [email protected] ABSTRACT Most of the soils in Malaysia are arid and infertile due to lack of buffering capacity and low clay activities that resulted in soil acidity. Moreover, high intensity rainfall and extreme conditions of slopes such as transient drought and lack of nutrients have reduced the survival and growth of potential plants. The use of vegetation and their relationship with microbes have great potential to alleviate soil acidity and erosion problems. The application of natural fibers in the construction industry was highly used as an additional or alternative source to be used in composites for increasing its strength properties. Natural fibers can innovative solutions to solve difficult problems, economically, enables the use of local materials means that natural fibers can be sustainable solutions. This paper consists of the technical results on the testing conducted to determine the strength of coir, jute and kenaf fibers. The objectives of this

2ND ICDM 2020 69 re-search are to manifest the effectiveness of new treatment on natural fibers netting to reduce degradability of the natural fiber netting to be used in acidic soils in Malaysia, to pick out the best chemical treatment for natural fibers to select the best natural fibers for rainfall area. The fibers have been treated by Sodium Hydroxide (NaOH) and Calcium Chloride (CaCl2). Six natural fiber nets have been provided with the size of each net is 500mm x 500mm (50cm x 50cm) and the spacing between the lines of the net is 17.5mm (1.75cm). Three nets are treated and the others are not treated. The nets have been placed on a slope at the site for 30 days and 60 days. The lab test that has been conducted is more focused on the strength properties of the coir, jute and kenaf fibers in terms of Tensile Strength. It has been found that treated fiber showed better performance than untreated fibers. The strength of fibers has been decreased respectively from 1st day on site to 60th day affected by climate changes.

ICDM-1387 DEVELOPMENT OF FLOOD INUNDATION MAPS AS AN INITIAL ASSESSMENT FOR FLOOD DISASTER MITIGATION - A CASE STUDY OF SELAGAN RIVER BASIN Robi Fernando1, Agung Bhakti Utama1, Galih Adya Taurano1, Liza Riani2, Idham Riyando Moe3 1 Department of Building Construction Technology, Politeknik Pekerjaan Umum, Ministry of Public Works and Housing Republic of Indonesia, Jl. Prof. Soedharto, SH, Semarang, 50275, Indonesia 2 Balai Wilayah Sungai Sumatera VII, Directorate General of Water Resources, Ministry of Public Works and Housing Republic of Indonesia, Jl. Batang Hari No.25, Bengkulu, 38224, Indonesia 3 Directorate of Water Resources Management, Directorate General of Water Resources, Ministry of Public Works and Housing Republic of Indonesia, Jl. Pattimura No. 20, Jakarta Selatan, 12110, Indonesia  [email protected] ABSTRACT Flood is a natural disaster that often occurs in Bengkulu Province. One of which occurred at the Selagan River Basin which caused in several sub-districts in Mukomuko District to be flooded. Goverment must be fast and precise in resolving future flooding problems in the Selagan River Basin. In solving the

2ND ICDM 2020 70 problem, initial assessment data is certainly needed, one of which is a flood inundation map, so that later the infrastructure that is built is right to solve the flooding problem that occurred in the Selagan River basin. This study was conducted to model section of the Selagan River for flood inundation forecasting with the help of digital elevation model (DEM) Data, hydrological data, river characteristics data, geographical information system(GIS). Those data is used to create a flood inundation model that is built with hydrodynamic modules which consist of rainfall runoff module, flood routing and inland flooding by using the MIKE software. Simulations of flood inundation that has been made are compared using inundation observation data at flood locations, so the results of flood inundation maps occur at this time can be a preliminary assessment for flood mitigation in the future.

ICDM-1388 PREFACE OF DESTRUCTIVE M<5 EARTHQUAKES IN JAVA ISLAND, 2015-2019 Admiral Musa Julius1,2, Daryono2, I Dewa Ketut Kerta Widana1 1 Study Program of Disaster Management, National Security Faculty, Indonesia Defense University (UNHAN) 2 Earthquake and Tsunami Center, Indonesia Agency for Meteorology Climatology and Geophysics (BMKG)  [email protected] ABSTRACT This study aims to denote the possible casualties and damages due to the M<5 earthquake. We used the desk study of literatures to explore earthquake disaster reports. The published significant and destructive earthquakes catalogue by BMKG Indonesia along 2015-2019 noted that six events out of them in Java island due to by below magnitude 5 (M<5) earthquakes. Those are sourced in the land and shallow depth focus on the active faults region. Those earthquakes also cause human losses, that is three events out of them induce casualties, and kill two (2) people. Preliminary analysis concludes that the short distance to earthquake source and local site condition was responsible for this unexpected building damages. We suggest this events to be the lesson learned for disaster risk managers to consider the low magnitude

2ND ICDM 2020 71 earthquake also able to generate the high hazard on the certain seismic prone areas.

ICDM-1390 RELATIONSHIP BETWEEN EXTREME RAINFALL AND DESIGN FLOOD-DISCHARGE OF THE CILIWUNG RIVERM Farid1,4, D Saputra2, T R Maitsa2, T N A Kesuma3, A A Kuntoro1,5, A Chrysanti1 1 Water Resources Engineering Research Group, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Bandung 40135, Indonesia 2 Civil Engineering Master Program, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Bandung 40135, Indonesia 3 Civil Engineering Doctoral Program, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Bandung 40135, Indonesia 4 Center for Coastal and Marine Development, Institut Teknologi Bandung, Bandung 40135, Indonesia 5 Center for Water Resources Development, Institut Teknologi Bandung, Bandung 40135, Indonesia  [email protected] ABSTRACT Flood in Jakarta is occurred almost every year because of inadequate flood control systems to the flood prediction, inadequate drainage system, and trash that clog the drainage. Besides the population growth and land-use changes, rainfall characteristics change also affect river flow. This study analyzes the extreme rainfall trend in every 15 years of rainfall data from 1985 until 2019 for several return periods. Based on the analysis, the extreme rainfall for 1995- 2009 and 2005-2019 period compared to the baseline (1985-2019) is increased for all return periods. The increasing percentage is approximately 3- 10% and 5-16% respectively. Since the extreme rainfall is increased, the design discharge is also increased for all return periods. The increasing percentage for 1995-2009 and 2005-2019 period compared to the baseline is 4-12% and 7-19% respectively. Whereas the design rainfall and discharge for the period 1985-1999 is lower than the baseline.

ICDM-1391

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A COMPARATIVE STUDY ON BRIDGE ROAD WORKS METHODS FOR FLOOD TIDE MANAGEMENT IN AGATS-SUATOR PROJECT Hans Dermawan, Widsri Palamba, Enma Sebayang Civil Engineering Department, Faculty of Computer Science and Engineering, Krida Wacana Christian University. Jln. Tanjung Duren Raya No.4, Jakarta Barat 11470, Indonesia  [email protected] ABSTRACT Currently, flood tide affects the accessibility of Agats-Suator Bridge Road. Therefore, local governments are making efforts to improve its infrastructure, one of which is in the bridge road construction previously used wood conventionally replaced with better concrete. This study examines the Agats- Suator Bridge Road Project, Asmat, Papua that compares the precast concrete system and conventional concrete system for flood tide management, in which workers were employed and materials were purchased from Surabaya. The purpose of this research is to calculate efficient scheduling conditions with a limited workforce on conventional and precast concrete implementation systems. The research method used in this research is a non-experimental quantitative method with comparative studies. Human resource allocation makes the workers scheduling more efficient by applying the principle of limited resource allocation. The research results show that the precast concrete system reach ideal conditions at rmax = 30 people with 18 weeks duration. Meanwhile, conventional concrete systems reaches ideal conditions at rmax = 89 people with 22 weeks duration. The result of resource allocation suggests that implementing a precast concrete system is more effective than implementing a conventional concrete system. The results of this study also function as a reference in selecting the concrete construction implementation systems for flood tide management in Agats-Suator Bridge Road Project.

ICDM-1392 FEASIBILITY STUDY ON USE OF SOLAR ENERGY IN MALAYSIA’S LIGHT RAIL TRANSIT Wan Azdi Wan Omar1, Gasim Hayder2,3, Ali Aldrees4, Abubakr Taha Bakheit Taha4 1 College of Graduate Studies, Universiti Tenaga Nasional (UNITEN), 43000Kajang, Selangor Darul Ehsan, Malaysia

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2 Institute of Energy Infrastructure (IEI), Universiti Tenaga Nasional (UNITEN), 43000 Kajang, Selangor Darul Ehsan, Malaysia 3 Department of Civil Engineering, College of Engineering, Universiti Tenaga Nasional (UNITEN), 43000 Kajang, Selangor, Malaysia 4Civil Engineering Department, College of Engineering, Prince Sattam Bin Abdul- Aziz University, Al-Kharaj 11942, Saudi Arabia  [email protected] ABSTRACT LRT System is an accessible urban public transportation in Malaysia, especially in Klang Valley. People can commute easily from one place to another. The operations of the LRT System are entirely dependent on the electric power supply, from the movement of trains between stations to the facilities inside the train itself. High consumption of electric grid has contributed to the increase in environmental pollution. In the long-term, the effect can be seen in the decrease in sea level as well as drop-in water supply. Due to that, renewable energy demand is continuously increasing, and current prediction shows that this trend is going to further continues yearly. Usage of electricity from renewable sources such as the solar panel has been proposed in this project paper in order to reduce the negative effect been encountered. The solar PV is a mechanism that can transform the sunlight into direct current electricity by using semiconductors. Hence, with the use of the solar panel, it will reduce energy pollution and climate change impact due to high consumption of electric grid. This research is meant to explore the possibility of using solar panels as an alternative for generating electricity for the Light Rail Transit (LRT) as renewable energy instead of using the power grid. The goal for this project report is to understand the requirements in implementing solar energy on the LRT System in Malaysia.

ICDM-1393 UTILIZATION OF BIOFLOC ON FLOOD & DRAIN AQUAPONIC SYSTEMS TO IMPROVE WATER QUALITY (AMMONIA, NITRITE, NITRATE) Deswati1, Safni1, Elsa Yani1, Khairiyah1, Refinel1, Hilfi Pardi2 1 Department of Chemistry, Faculty of Mathematics and Natural Science, Andalas University, Kampus Limau Manis, Padang, 25163 Indonesia 2 Department of Chemistry Education, Faculty of Teacher Training and Education Raja Ali Haji Maritime University, Senggarang, Tanjungpinang, Indonesia

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[email protected] ABSTRACT The application of biofloc technology (BFT) in flood & drain (F&D) aquaponics systems, integration of Tilapia (Oreochromis niloticus) and Mustard (Brassica juncea) aims to improve several water quality parameters, including ammonia, nitrite, and nitrate. This system consists of fish pond tank (FPT), mechanical filter tanks (MFT), biological filter tanks (BFT), storage tanks (ST), and hydroponic plant circuits (HPC), also supported by water recirculation and aeration. Water sampling is carried out in FPT, ST, and HPC. Based on research conducted, ammonia (0.3013–5.9625)mg/L, nitrite (0.1438–0.3774)mg/L, and nitrate (1.0764–9.33923)mg/L. Then the data compared to compromise water quality (Sommerville et al., 2014; Sallenave, 2016; Anonymous 2014), and Government Regulation No. 82 of 2001 classes 2 and 3. In general, nitrate are still at the acceptable threshold, except for ammonia and nitrite. The use of biofloc in aquaponic systems, compared to without the use of biofloc, shows that the use of biofloc is more appropriate to be used in improving water quality.

ICDM-1394 ANALYSIS OF WATER AVAILABILITY AND PLANTING INDEX IN DAMS IN BEDADUNG WATERSHED Bintang Candra Jatmiko Natural Resource and Environmental Management, Postgraduate, Jember University, Indonesia  [email protected] ABSTRACT The increasing population causes the government to work to improve food security. One of the policies adopted is to increase the productivity of agricultural land. Increased productivity of agricultural land can be increased by increasing the crop index. Planting index is the total area for crops per planting season for a year. In this case support from irrigation, the sector is very important. From the preliminary survey in the study area, we found some damage to the irrigation assets that might reduce the performance of the assets which caused the crop index to be lower than the maximum crop index (300%). This study aims to (1) calculate the availability of irrigation water, (2) calculate the crop index, and (3) analyze the potential increase in the crop

2ND ICDM 2020 75 index and the expansion of agricultural land. The results showed that there were 80 dams (44.4%) experienced abundant water but had a crop index value of less than 300%. Thus, the service area of 80 dams can be increased the value of the planting index to 300%. While there are 100 dams (55.6%) experiencing water shortages. In this case, the recommendations that can be given are providing water supply through the construction of a reservoir or changing the pattern of planting paddy - paddy - paddy into paddy - palawija - palawija. We conclude that water delivery in the Bedadung Watershed area is not effective. This can be caused by damage to irrigation assets. Therefore, a recommendation that can be given for further research is the effect of irrigation asset performance on irrigation services.

ICDM-1395 EFFECT OF LAND CRITICALITY ON NUTRIENT AVAILABILITY (CASE STUDY OF DINOYO SUB WATERSHED, JEMBER REGENCY, INDONESIA) Putri Tunjung Sari1, Indarto1, Mohammad Wawan Sujarwo 1, and Muhammad Rizal Romadhon2 1 Department of Environmental and Natural Resources Management, Post Graduated, 67372 University of Jember, Indonesia 2 Department of Agrotechnology, Faculty of Agriculture, 67372 University of Jember, Indonesia  [email protected] ABSTRACT Dinoyo sub-watershed is one of the watersheds that drain water from Argopuro Mountain through the Panti and Rambipuji Districts. Changes in land use in the upstream area cause a reduction in water catchment function and increase soil erosion. It causes drought during the dry season and flooding during the rainy season which is a characteristic of critical land. This study aims to map the level of criticality of the Dinoyo sub-watershed land and its relationship to nutrient availability. The method used is interviews and laboratory analysis, then scoring and weighting to calculate the critical value of land and regression correlation analysis to determine the effect of nutrient availability on land criticality. Based on the analysis results, the upstream section has high nutrient availability compared to the middle and downstream regions. There are two classes of land criticality, which are rather critical and

2ND ICDM 2020 76 heavy criticism. The area included in the rather critical was 1,723.34 ha dominated by forest land use. A heavy critical area of 2,333.88 ha is dominated by coffee plantation land use. The results of the correlation and regression analysis showed that organic matter with a significance value of 0.019 had the most influence on the criticality of land.

ICDM-1396 THE ANALYSIS OF CORRELATION BETWEEN REGIME’S RIVER COEFFICIENT AND RUNOFF COEFFICIENT (CASE STUDY IN CATCHMENT AREAS OF SIDUTAN AND REAK) Salehudin, Lalu Wirahman W, Hasyim, Rohani Civil Engineering Department, Faculty of Engineering, [email protected] ABSTRACT The Sidutan and Reak Watersheds have 37.77 km2 and 23.66 km2 basin areas, both of which are still protected forests. Along with the increase in human activities, the community's raw water needs in both watersheds, can also influence the magnitude of the infiltration rate and runoff, where infiltration and runoff coofesien will affect the River Regime Coefficient (RRC). River Regime Coefficient is the magnitude of the ratio between the maximum and minimum daily discharge in a year in the river. Whereas to get runoff coefficient every year a single hydrograph and rain per hour are needed in a year. The relationship between river regime coefficients and runoff coefficients can produce a correlation equation in a linear equation. In the analysis, the runoff coefficient value in the following year in each river channel is enough to replace the value of the river regime coefficient with a linear equation. The analysis shows that the value of the River Regime Coefficient (RRC) with Runoff Coefficient in the Sidutan Watershed yields the equation Y = -2E-05x2 + 0.0048x - 0.0539 with a coefficient of determination R2 = 0.6796. River Regime Coefficient (RRC) values obtained in 2011 to 2016 were 67.69; 43.99; 188.92; 53.78; 45.01 where the value is included in the low and too high classification range. The results of the analysis indicate the watershed is in bad condition. From the analysis of runoff coefficient (C) each watershed is 0.188; 0.101; 0,229; 0.163; 0.148, shows that the level of runoff coefficient (C) of the watershed is still in good condition. From the results of the analysis of the River Regime for the Reak River Basin, the equation Y = 0,0003x2 - 0.011x + 0.1618

2ND ICDM 2020 77 with a coefficient of determination R2 = 0.7855. Where the RRC Value obtained in 2011 until 2016 respectively 27.46; 29.80; 31.06; 16.96; 14,11. The results of the analysis are included in the very low classification range and to a low degree. From the results of the analysis the Reak River Basin is still in good condition.

ICDM-1397 A REVIEW ON EXPERIMENTAL AND NUMERICAL STUDIES OF GLASS FIBRE REINFORCED POLYMER (GFRP) STRIPS STRENGTHENED REINFORCED CONCRETE (RC) SLAB SUBJECTED TO LOW VELOCITY IMPACT Shaikh Muhammad Mubin1, Agusril Syamsir2, Daud Mohamad3 1Postgraduate Student, Department of Civil Engineering, College of Engineering, Universiti Tenaga Nasional, Malaysia 2Senior Lecturer, Institute of Energy Infrastructure (IEI), College of Engineering, Universiti Tenaga Nasional, Malaysia 3Lecturer, Department of Civil Engineering, College of Engineering, Universiti Tenaga Nasional, Malaysia  [email protected] ABSTRACT This paper reviewed the previous research on experimental and numerical studies on the impact behaviour of fibre reinforced polymer (FRP) strips reinforced concrete (RC) slab with various (FRP) strips arrangement. This review focusses on the effect of thicknesses, arrangements of FRP strips and type of support layouts. Initially, a throughout investigation was made on the FRP and its properties. Experiments associated to impact resistance of RC slabs was also performed. Furthermore, numerous finite element model (FEM) of RC slabs externally strengthened with different arrangement FRP strips were developed with ABAQUS and ANSYS. The numerical simulations on impact resistance of RC slab models externally strengthened with different arrangement FRP strips were performed. Generally, the experimental results displayed the diagonal two-way arrangement FRP strips externally bonded on bottom surface of RC slabs and four hinge supports applied had improved the impact strength significantly. The experimental and numerical impact results obtained for RC slabs externally strengthened with FRP strips were better as compared to the control RC slabs without FRP strengthening. Afterwards, the

2ND ICDM 2020 78 results gained from numerical was validated with experimental results. Finally, the methods and results of experimental and numerical reviewed was reliable as a reference for the study of RC slab externally strengthened with GFRP strips subjected to low velocity impact.

ICDM-1398 REVIEW OF INTERNAL FORCE MAGNITUDE AT THE 5-FLOOR HOSPITAL IN NORTH SULAWESI PROVINCE BETWEEN SNI 1726- 2012 AND SNI 1726-2019 WITH RESPONSE SPECTRUM (2D) METHOD Daniel Jesayanto Jaya1, Shilmi Arifah2, Slamet Widodo3 1,2Student of Technical and Vocational Education Department, Graduate School of Yogyakarta State University, Jl. Colombo No.1, Yogyakarta, 55281, Indonesia 3Lecturer of Civil Engineering and Planning Education Department, Yogyakarta State University, Jl. Colombo No.1, Yogyakarta, 55281, Indonesia  [email protected] ABSTRACT Guidelines for building structure planning in Indonesia began to be known in the 1970s in PBI'71 until now. The earthquake loading guidelines begins from special specifications : SNI 1726-2002 to SNI 1726-2019. The latest SNI and its development are affected by the latest findings of National Earthquake study centre which produces an earthquake hazard map for Indonesia in 2017. In this study, the planning method used in the 5-floor hospital building which was located in the Kotamobagu city, and used SNI 2847-2013 as the loading of the structure. It is considered as comparative study since it examined the earthquake load forces using the SNI 1726-2012 and SNI 1726-2019 guidelines. After conducted this study, it was found that there were differences in internal forces in the two planning guidelines. For further studies, it is suggested that the old earthquake-resistant planning guidelines used on the buildings should be reviewed using the new guidelines. Thus, the building's ability to withstand earthquakes is well examined. The research development on earthquake fractures affects the study of giving review related to earthquake resistance in buildings. Therefore, it is supposed to be carried out periodically.

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ICDM-1401 ANALYSIS OF CLEAN WATER DISTRIBUTION SYSTEMS USING EPANET 2.0 (CASE STUDY OF UMA SIMA VILLAGE, SUMBAWA REGENCY) E Kurniati, Kamariah, T Susilawati Department of Civil Engineering,Universitas Teknologi Sumbawa, Jl. Raya Olat Maras Kecamatan Moyo Hulu Kabupaten Sumbawa 84371, Indonesia  [email protected]

ABSTRACT The need for clean water is very important for humans because it is one of the benchmarks of successful development in an area. Where every area, especially Uma Sima Urban Village, Sumbawa Sub-district will experience an increase in population every year so that the need for clean water will increase. The purpose of this study is to determine the need for clean water and the distribution system of clean water pipelines in Uma Sima Urban Village for the next 20 years until 2037 by using the method of analyzing clean water needs with projected population numbers using the exponential regression formula and network simulations pipeline distribution with Epanet 2.0 software. Based on the results of the analysis carried out, it can be obtained the need for clean water at peak hours of 16.99 liters / second with a max day factor of 1.15 and 18.446 liters / second with a max of 1.25 days factor. Whereas for the distribution network simulation it was found that the distribution network is still effective for carrying water for the next 20 years, namely in 2037.

ICDM-1405 BAMBOO-BASED TEMPORARY HOUSE FOR POST DISASTER RELIEF: A CONCEPTUAL DESIGN AND PROTOTYPE BUILT AFTER LOMBOK EARTHQUAKE 2018 J Fajrin, IW Sugiartha, M Eniarti, and Pathurahman Department of Civil Engineering, Faculty of Engineering, Mataram University, Indonesia  [email protected] ABSTRACT

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This paper presents an alternative design of a temporary house made of bamboo and its manufacturing process to become a prototype that can be seen by the public. It was expected that by seeing this prototype, the people who lives around disaster affected areas can build their own temporary houses or the government can build it for them. The process was initiated by reviewing the existing designs published previously which were then examined from the perspective and experience of the authors. The next step was defining some basic design criteria by combining findings from literature, author experiences, local conditions and the availability of resources. The proposed conceptual design was then developed based on the design criteria of a temporary house. At the last stage, a prototype of temporary house was constructed as a showcase. This article summarized all these processes which indicated that, to such extent within the boundary condition of the study, bamboo can be practically applied for building a temporary house following earthquake disaster, with a special reference to Lombok Earthquake in 2018.

ICDM-1406 DESCRIPTIVE STUDY OF BEHAVIOR IN USING PERSONAL PROTECTIVE EQUIPMENT (PPE) TO PREVENT COVID-19 FOR PRIMARY HEALTH CARE OFFICERS IN PADANG CITY Ayulia Fardila Sari ZA, Syafrawati and Laa Tania Fizikriy Public Health Sciences Study Program, Faculty of Public Health, Andalas University, Padang, Indonesia  [email protected] ABSTRACT The number of positive patients infected by Coronavirus Disease 2019 (Covid- 19) in the city of Padang continues to increase and is highest in West Sumatra Province. Until May 5, 2020, there were 131 positive confirmed cases. Six of them are primary health care officers. The purpose of this study was to measure the description of the use of Personal Protective Equipment (PPE) in the prevention of Covid-19 in primary health care staff in Padang City. This research uses descriptive quantitative method which was carried out in March - June 2020 in Padang City primary health cares. The study population are primary health care officers who deal with patients directly in the city of Padang with a sample of 100 people. Data were collected using a questionnaire and analyzed univariately. The results showed that 55% of staff

2ND ICDM 2020 81 used incomplete PPE, 57% are old, 54% have low knowledge, 54% have negative attitudes, 46% PPE are not available at the primary health care , and 45% lacked leadership support. The results also noted that 58% of officers began using PPE when announcing the first positive case in Padang City. For further research can conduct bivariate analysis and qualitative research for in-depth analysis.

ICDM-1410 PASMINA: ARTS-BASED TSUNAMI EDUCATION WITH AN ISLAMIC THEME ADOPTED FROM NANDONG SMONG Imam Maulana1, Lilla Raswita1, Septia Karlina2, Zahratunnisa3, Mohd. Hafizh Al Mukarram3, Rina Suryani Oktari1,4 1Faculty of Medicine of Universitas Syiah Kuala, Darussalam, Banda Aceh 231111, Indonesia 2Faculty of Teacher Training and Education of Universitas Syiah Kuala, Darussalam, Banda Aceh 231111, Indonesia 3Faculty of Engineering of Universitas Syiah Kuala, Darussalam, Banda Aceh 231111, Indonesia 4Tsunami and Disaster Mitigation Research Center (TDMRC), Meuraxa, Banda Aceh, 23233, Indonesia  [email protected] ABSTRACT Indonesia is highly tsunami-prone country. People have difficulty maintaining awareness of the tsunamis. It is therefore very important to build a social system to ensure awareness of disasters and to transfer the lessons future generation.This study aim at developing PASMINA (literally meaning in Indonesia Paket Kesenian untuk Mitigasi Bencana), an arts-based package for disaster mitigation which can be used to educate students about tsunami preparedness. The concept of PASMINA was adopted from Nandong Smong, a local wisdom from Simeulue which also consist of Islamic messages. The PASMINA concept was implemented at one of islamic boarding school in Banda Aceh to obtain students' feedback and to gain specific ideas and recommendation for changes that lead to improvements to the concepts that were developed. This study used Research and Development approach which consist of: i) Preliminary study, ii) Model’s development, and iii) Model’s testing. PASMINA provide a solution in sustaining the traditional knowledge for

2ND ICDM 2020 82 disaster risk reduction, and at the same time improving the preparedness towards the tsunami hazard.

ICDM-1412 DESIGN ACCELERATION RESPONSE SPECTRA IN RIAU PROVINCE BASED ON THE SNI 1726:2019, AS A REVISION OF SNI 1726:2012 METHODS Zev Al Jauhari1, Armada1, Faisal Ananda1, Ridho Aidil Fitrah2 1Civil Engineering Department, Bengkalis State Polytechnic, Sungai Alam, Bengkalis, Riau, Indonesia 2Civil Engineering Department, Dharma Andalas University, Sawahan, Padang, West Sumatera, Indonesia  [email protected] ABSTRACT The current SNI 1726:2012 code was developed to be the new Indonesian Seismic Design Code, SNI 1726:2019 based on the 2017 Indonesian Seismic Hazard Maps and the ASCE 7-16. It has a direct impact on the development of seismic resistance code for building design in Indonesia. The new 2019 risk targeted ground motion of spectral acceleration (SS and S1), and risk coefficients, for both short (T = 0.2s) and 1-second (T = 1s) periods, respectively have been conducted. This paper shows the difference of the design response spectra for building design of seven districts of Riau Province, Indonesia, according to those standard codes. The analysis was performed for three different site soil classes, that is hard (SC), medium (SD), and soft soil (SE). The design response spectra comparison of SNI 1726:2019 and SNI 1726:2012 of even districts in Riau Province, namely Bangkinang, Bengkalis, Pekanbaru, Tembilahan, Pasir Pangaraian, Dumai, Teluk Kuantan, and Siak were considered to represent the entire territory of Riau, from North to South that chosen as samplings. The purpose of this study is to evaluate the direct impact of the new code SNI 1726:2019 on design response spectra (DRS). Based on the analysis conducted at 8 cities/ districts, the improvement of DRS 2019 compared to DRS 2012 for site classes SC, SD and SE are less than 0.1g except for all site class at Tembilahan and Teluk Kuantan.

ICDM-1414

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LOCAL RISK MANAGERS’ AND DISASTER VOLUNTEERS’ AWARENESS OF, ATTITUDES TOWARD, AND INTENTION TO USE A LOCAL GOVERNMENT-DEVELOPED DISASTER INFORMATION SYSTEM: A CASE STUDY OF SIKK MAGELANG KP Sari1,3, H Kanegae1, and M Roychani2 1Graduate School of Policy Science, Ritsumeikan University, Japan, Iwakura-cho 2- 150, Ibaraki-shi, Japan 5678570 2Badan Penanggulangan Bencana Daerah Kabupaten Magelang, Indonesia, Jalan Soekarno-Hatta No. 7A. Sawitan, Mungkid, Magelang, Jawa Tengah, 56511  [email protected] ABSTRACT SIKK (Sistem Informasi Kebencanaan Kabupaten or Regency Disaster Information System) Magelang is a disaster information system developed by local government in Magelang Regency to support disaster management. Despite having useful features, as with many e-government services, it shows a low adoption rate. This paper aims to explore the barriers impeding the adoption of SIKK Magelang from the perspective of local risk managers and disaster volunteers. Preliminary data were gathered by scrutinizing related disaster management documents and SIKK Magelang reports and interviewing the information system’s operators. Next, a half-day workshop was conducted with the help of BPBD (Badan Penanggulangan Bencana Daerah) of Magelang Regency to assess local risk managers’ and disaster volunteers’ awareness of, intention to use, and attitudes toward SIKK Magelang. Of the 150 people invited, 112 attended the workshop; however, 107 participants could be analyzed. We found that participants had a low awareness of SIKK Magelang and were unfamiliar with the disaster information system. After the trial session, however, they had positive attitudes toward the information system and were willing to use it in the future, especially in the context of supporting their disaster-related tasks. Our findings indicate that SIKK Magelang has the potential to be more widely used by local risk managers and disaster volunteers. More effort should be put into promoting SIKK Magelang, such as producing a clear tutorial.

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THE BAYESIAN MODEL OF COVID-19 CASE FATALITY RATE PROPORTION ON PROVINCES IN INDONESIA Dodi Devianto1,2, Anis Nur Afifah2, Ika Kurnia Febrianti3 1Department of Mathematics, Dharma Andalas University, Padang 2500, Indonesia 2Department of Mathematics, Andalas University, Padang 25163, Indonesia 3Department of Biomedics, Andalas University, Padang 2500, Indonesia  [email protected] ABSTRACT The Covid-19 pandemic has spread to all parts of Indonesia with different case fatality rates (CFR) between regions. The estimating parameter of the proportion of people who die compared to the number of people who test positive for coronavirus (parameter of CFR) can be determined using the Bayesian method approach. The estimation parameter of CFR is performed by using prior beta distribution, and the results have good performance with a high degree of accuracy. The choice of Bayesian model that can be built is a fixed effect model where the proportion of case deaths in each province is assumed to be mutually independent. Still, the movement of people between regions continues to occur so that a random effect model is more rational to be applied where the proportion of case deaths for each province is assumed to be the same as estimating parameter of CFR which is smaller than the current condition of Indonesia. The estimation parameter results of the CFR parameters are expected to be achieved by the Indonesian government by implementing Covid-19 controls system for each province as a mitigation diseases strategy.

ICDM-1418 UTILIZATION OF VOLCANIC ASHES FOR GEOPOLYMER BASED ON ALKALINE ACTIVATOR AND SOLID-LIQUID RATIO D J Ilham1, U Anggarini2, J Juniarti1 and D Fiantis1

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1Department of Soil Science, Faculty of Agriculture, Andalas University, Limau Manis, Padang, Indonesia 2Department of Chemical Engineering, Universitas Internasional Semen Indonesia, Gresik, Jawa Timur, Indonesia  [email protected] ABSTRACT The volcanic ashes are an abundant natural resource in Indonesia, but they are still little is used optimally, such as geopolymer raw material. Geopolymers are a class of inorganic polymer that be able by the reaction of an aluminosilicate material with an alkaline solution. The research aims to investigate the synthesis of geopolymers using two types of volcanic ash (Mt. Merapi and Mt. Sinabung). The synthesis of geopolymer was carried out at variation of solid/liquid ratio at 65% : 35% and 70% : 30%, with two alkaline solutions (NaOH and KOH) under different alkaline concentration (8, 9, and 12 M). A multi-analytical approach is proposed: chemical (XRF) and spectroscopic (FT-IR) analyses. The Results showed that geopolymer is influenced by volcanic ash-type and SiO2/Al2O3 ratio. Geopolymers are formed when volcanic ash of Sinabung mix with NaOH 10 NaOH with ratio of 65% : 35%, and the polymers are relatively stable. The FTIR spectra of the synthesized geopolymers showed broad absorbance bands, between wave 972-962 cm-1 and 931-976 cm-1 assigned to the internal vibrations of Si–O–Si, and Si–O–Al respectively. Both volcanic ash materials from the Merapi and Sinabung volcanoes can be utilized for making geopolymer, suitable for both engineering and agriculture applications.

ICDM-1420 EARLY DETECTION OF THE DISTRIBUTION OF HEAT STRESS HAZARDS FOR SUSTAINABLE LAND USE PLANNING IN PADANG CITY Dwi Marsiska Driptufany, Fajrin Geodetic Engineering Departement, Faculty of Engineering, Institute Technology of Padang  [email protected]

ABSTRACT

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The focus of this research is to analyze the spatial distribution of heat hazards caused by urban heat island (UHI) events over a 10-year observation period. Land surface temperature in 2007 is extracted from Landsat 7 ETM + to convert the value of Digital Number (DN) on the band 6 into radiance. Land surface temperatures in 2013 and 2017 were extracted from Landsat 8 OLI / TIRS imagery with the initial step of the Digital Number (DN) band 10 being converted to spectral radiance. As for the analysis of the heat stress hazard area is done by connecting the land surface temperature with the Universal Thermal Climate Index value. The Universal Thermal Climate Index from 2007 to 2017 shows that the city's heat stress is increasing every year in observation, where in 2007 the heat stress was in the range of moderate heat stress (2,960.87 Ha). Whereas for 2013 the heat stress increased to strong heat stress reaching 34.35 ° C with an area of 77.50 Ha. In contrast to 2013, in 2017 strong heat stress increased significantly to 2,100.81 Ha where heat stress reached a peak of 35.92ºC which is spread in almost all districts with concentrations close to the city center in addition to dense residential areas as well seen in industrial areas (semen padang), this change is in line with the development of the city area.

ICDM-1421 ANALYSIS OF PEDESTRIAN CROSSING NEEDS IN THE TRANSMART SHOPPING CENTER AREA IN PADANG CITY Bayu Budi Irawan, Ridho Aidil Fitrah, Dwi Intan Suci Rahmadani Civil Engineering Department, Dharma Andalas University. Sawahan Street. No. 103 A, Padang, West Sumatra, Indonesia  [email protected] ABSTRACT Pedestrians are an important form of transportation in urban areas. The unavailability of pedestrian facilities will have an impact on the risk of traffic accidents and traffic delays. The Khatib Sulaiman road section in the city of Padang has land uses such as settlements, offices, hotels, trade and services. These conditions affect traffic conditions, especially for pedestrians. The purpose of this study is to calculate the potential number of pedestrians in the Transmart area and the selection of locations and types of pedestrian facilities. Pedestrian facility planning uses the Pedestrian Facility Technical Planning Guide (Pd 03-2017-B: 02 / SE / M / 2018: February 26, 2018). The pedestrian

2ND ICDM 2020 87 crossing survey results on the Khatib Sulaiman road on Saturday and Sunday (30-31 March 2019 at 14.00-18.00 WIB) obtained pedestrians who crossed an average of 278.25 people / hour. The recommended crossing facility is the People Crossing Bridge (JPO). The recommended pedestrian crossing bridge location is Point B with weight value 2.45 and coordinates 0° 54'44”, 100° 21'27”).

ICDM-1422 CHANGES IN ANAK KRAKATAU LANDSCAPE AFTER DECEMBER 2018 ERUPTION F I Ginting1, Gusnidar1, M Nelson2, Rudiyanto3, B Minasny4 and D Fiantis1 1Department of Soil Science, Faculty of Agriculture, Andalas University, Padang, Indonesia 2Department of Estate Crops, Payakumbuh Agriculture Polytechnic Institute, Kampus Politani Tanjung Pati, 50 Kota, 26271, Sumbar, Indonesia 3Program of Crop Science, Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia 4Sydney Institute of Agriculture, School of Life and Environmental Sciences, The University of Sydney, 1 Central Avenue, Eveleigh, NSW 2015, Australia  [email protected] ABSTRACT The south-western slope of Anak Krakatau collapsed after the eruption on December 22nd, 2018 and reshaped the volcanic island landscape. This work focused on determining the geomorphological features of Mt. Anak Krakatau before and after the eruption. A total of 71 lapilli and 17 volcanic ash samples were collected from Anak Krakatau and Panjang islands on February 23, 2019, and March 14, 2019. Sentinel-2 and Planet Scope images were utilized to monitor thermal activities and the changes of the coastlines. Google Earth Pro was capitalized to determine the rills and gullies formation. After the December 2018 eruption, the height of Anak Krakatau was reduced from 258 to 126 m and, about 76 x 106 m3 of materials were eroded to the sea. The eruption caused Anak Krakatau to be covered by unconsolidated volcanic materials. About 214 of rills (dimension of 380 to 851 m and 30 to 100 cm) and 35 of the gully features (length from 150 to 841 m and width from 0.5 to 13 m) run from the highest peak to the coastline. This work can serve as a

2ND ICDM 2020 88 reference for predicting potentially disastrous events such as Anak Krakatau, which shows growth and destruction can be observed using remote sensing techniques.

ICDM-1423 ANTIBACTERIAL ACTIVITIES TEST AND GARGARISM FORMULATION OF CATECHINS WITH BETEL LEAF INFUSION (PIPER BETLE L.) Sefrianita Kamal, Rustini, Rezki Mulia  [email protected] ABSTRACT Catechins are polyphenol compounds that have potential antioxidants, anti- inflammatory, diarrhea, and dysentery drugs. Betel contains tannin compounds and essential oils such as hydroxicavikol, kavikol, chavibetol, allypykatekol, pyrocatechol, carvacrol, eugenol, cyneole, and cadine. These compounds can act as anti-inflammatory, anticonvulsant, analgesic, anesthetic, anti-diarrhea, and antimutagenic. These compounds are also proven to inhibit the growth of S. mutans bacteria that initiate plaque formation that causes dental caries. This study aimed to make gargarism formulation of catechins and betel leaf infusions and observe the antibacterial activity against S. mutans bacteria. The result of the evaluation of preparations at room temperature (25-30 ° C) show F1, F2, F3, F4 are stable formulas compared to other formulas and gargarism X. Gargarism preparations using catechins and betel leaves have inhibitory ability against S. mutans ATCC 25175. Thus, it can be concluded, F1 preparations are the ones with the largest inhibitory diameter compared to other preparations and X gargarism.

ICDM-1424 TSUNAMI RUN-UP ASSESSMENT TOWARD HUMAN LIVES AROUND MEURAXA OF ACEH, INDONESIA T M Rasyif1 and Syamsidik2,3

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1Department of Civil Engineering, Faculty of Engineering, Universitas Muhammadiyah Aceh, Banda Aceh, Indonesia 2Civil Engineering Department, Faculty of Engineering, Universitas Syiah Kuala, Jl. Syeh Abdurrauf No. 7, Banda Aceh, 23111, Indonesia 3Tsunami and Disaster Mitigation Research Center (TDMRC), Universitas Syiah Kuala, Jl. Prof. Dr. Ibrahim Hasan, Gampong Pie, Banda Aceh, 23233, Indonesia  [email protected] ABSTRACT The 2004 Indian Ocean tsunami caused dreadful damage in the Meuraxa sub- district of Banda Aceh, Indonesia. One of third from the total casualties in Indonesia was located in Banda Aceh coastal area with the number of casualties about 77,000. After one decade, the human population and the land use of settlement growing in the tsunami prone area especially in the Meuraxa. This condition able to cause the coastal area become more vulnerable toward the extreme event such as the tsunami disaster. The COMCOT model was applied to simulate the tsunami wave. The building shape in simulation area was developed by using the Building Block model with the Open Street Map data. The study is aimed at investigating the impact of the 2004 Indian Ocean Tsunami on human lives with the building shape condition in 2017 based on the Open Street Map. The result indicated that the Meuraxa area have a hazard ratio with value about 1. The local community, who stay in this prone area, cannot survive from the future of tsunami disaster. The human casualties in this area able to reach as same as the 2004 event, without a proper of mitigation program from local government.

ICDM-1425 A MULTI-OBJECTIVE OPTIMISATION MODEL FOR RESERVOIR OPERATION DURING DROUGHTS Syamsul Hidayat, Humairo Saidah, M Bagus Budianto, Bambang Harianto, and I B Giri Putra Department of Civil Engineering, Faculty of Engineering, University of Mataram  [email protected] ABSTRACT General guidance for reservoir operation can be referred to as the Standard Operation Procedure (SOP). Real circumstances such as drought, however, do not necessarily comply with these ideal assumptions, which then trigger the

2ND ICDM 2020 90 studies on optimal hedging rules. More frequent mild droughts are preferred to less frequent severe droughts. In the present work, an ε-constrained-based multi-objective optimisation model was developed to optimise hedging rules for a reservoir located in Lombok Island, Central Indonesia. The rules were aimed to minimise two objective functions namely maximum Single Shortage (SS) and Total Deficit (TD). The former is a measure of reservoir operation during drought in short-term, whereas the latter is for long-term evaluation. Results show that these two measures are conflicting in nature, that is, the greater the SS, the smaller the TD and vice versa. The tradeoffs between SS and TD can be a helpful assisst for water operators in executing their routine daily tasks by providing water allocation alternatives.

ICDM-1426 THE IMPACT OF MANDALIKA TOURISM AREA DEVELOPMENT ON THE KUTA VILLAGE, CENTER LOMBOK, INDONESIA BASED ON TSUNAMI HAZARD ANALYSIS POINT OF VIEW E Pradjoko1, A Setiawan2, L Wardani1, and Hartana1 1Study Center for Disaster Risk Management, Faculty of Engineering, University of Mataram, Jl. Majapahit no.62, Mataram, Indonesia 2Indonesia Tourism Development Corporation, Mandalika Office, Nurul Bilad Mosque Complex, Jl. Pariwisata, Kuta, Center Lombok, Indonesia  [email protected] ABSTRACT West Nusa Tenggara was ever hit by an earthquake and tsunami on August 19th, 1977. These earthquake and tsunami make an impact on the area of Kuta Village Central Lombok which is under the Mandalika Tourism Area (MTA) development now. This research was conducted to asses the impact of the MTA development on the Kuta Village in the tsunami hazard analysis point of view. This research applies the bathymetric data, the existing topography, and the infrastructure development topography to make the simulation of tsunami waves run-up. The analysis of tsunami waves run-up used four wave height scenarios, i.e. 3.5 meters of an existing condition and 3.5 meters, 5 meters, 7 meters of after development. The result of the tsunami wave run-up and inundation simulation showed differences which occurred in the MTA

2ND ICDM 2020 91 decreased by 855,617.12 m2 of tsunami inundation area. But the tsunami inundation area on the Kuta Village was increased by 3,278 m2.

ICDM-1427 GEOGRAPHICAL INFORMATION SYSTEM FOR DISASTER RELIEF DISTRIBUTION ON NATURAL DISASTER RESPONSE Difana Meilani, Rika Ampuh Hadiguna, Celya Ayu Pradipta Industrial Engineering Department, Faculty of Engineering, Universitas Andalas, Padang  [email protected] ABSTRACT The geographic information system that was designed was a geographic information system as a tool for the distribution process of earthquake and tsunami disasters in Padang City. This design is based on the problems that occur on the process of distributing the disaster relief such as obstruction of the distribution process of disaster relief due to abnormal road conditions, lack of information about the data of disaster relief needs at the evacuation posts so that the disaster relief provided does not match with the disaster relief needed on the evacuation post. Based on these problems, the system designed aims to provide information on optimal disaster relief distribution routes, as well as providing information about the disaster relief needs data so that the process of exchanging information about disaster relief needs data can be done more effectively. The determination of the disaster relief distribution network is using the Dijkstra Algorithm. That the shortest distribution path is obtained using the Dijkstra Algorithm with assuming that the path is traversed only to the main lane and the bridge that can be traversed is only the bridge in the Tsunami green zone. The system design is done using the waterfall method. The results obtained are that the system has four main functions. The first is to provide the optimal distribution routes, providing information about the shelter location data, providing information about disaster relief needs data, and providing information about disaster relief needs stock data. The distribution channel in the system consists of 5 safe routes to pass with the starting point is the Management Operation Center of Regional Disaster Management Authority. This research was conducted to simplify the process of distributing disaster relief because at this time officers who carry out the evacuation process are still doing data recap manually.

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ICDM-1428 RESPONDING TO UNCERTAINTY DURING COVID-19 Septi Mayang Sarry, Nila Anggreiny, Mafaza Program Studi Psikologi, Faculty of Medicine, Andalas University  [email protected] ABSTRACT The COVID-19 pandemic which infected almost all countries in the world, especially Indonesia, caused uncertainty in several aspects of life. According to Greco and Roger (2001) there are 3 main responses to uncertainty, namely emotional uncertainty, desire for change, and cognitive uncertainty. The present study aims to describe the responses to the uncertainty novel coronavirus-related, especially the response from people in early adulthood. The sample comprised 166 individuals (38 males and 128 female), aged 20– 40years, from several provinces in Indonesia. Participants completed the uncertainty response scale (Greco & Roger, 2001) via google form. The results showed that participants perceived COVID-19 caused uncertainty, mainly in the education and economy sectors. The cognitive uncertainty of all participants is at a high level. Almost all participants also have a high desire for change, and the results vary on emotional uncertainty. In addition, job status underlies differences in emotional uncertainty and desire for change, but not for cognitive uncertainty.

ICDM-1430 EFFECT OF COMPETENCE AND QUALITY OF HUMAN RESOURCES ON CONSTRUCTION PROJECT PERFORMANCE Miftahul Huda Civil Engineering Department, University of Wijaya Kusuma Surabaya, Indonesia  [email protected] ABSTRACT In the implementation of human resource construction project work is a very vital part to improve project success and performance. This study aims to analyze in depth and prove the effect of construction labor competency and quality of construction labor on construction project performance. The study was conducted in the city of Surabaya-Indonesia on 40 different types of

2ND ICDM 2020 93 construction projects. As many as 76 respondents were selected from the human resources of a small-medium qualification contractor company consisting of construction labor : carpenter, bricklayer, blacksmith, concrete man and finisher. Methods of data collection using questionnaires and interviews. Data analysis uses SMART-PLS assistance. The results of the study concluded that the construction labor competency and the quality of human resources, each of which consists of 10 factors that have a positive and significant impact on the performance of construction projects.

ICDM-1431 PROPERTY DEVELOPMENT RISK MANAGEMENT PROCESS MODEL I Wayan Muka1, Wendi Boy2 1Faculty of Engineering, Hindu Indonesia University; 2Faculty of Engineering, Dharma Andalas University  [email protected] ABSTRACT Property business is one of the most dynamic and risks businesses. The property industry has a bad reputation for managing risk. Businesses in the property sector, as with businesses in all other economic fields, need to manage each risk they face so that a balanced relationship between rentability (rate of return) and business liquidity is not disturbed by events, both economic and non-economic. Knowledge of risk management in property development in Indonesia, as seen from the available references is limited to general management theory both for industry and projects. This research is a simplification of the model 12 (twelve) stages of the development of the property industry in the opinion of Wurtzebach and Miles (1995) into 5 (five) stages namely; initiation phase, feasibility study phase, the commitment phase, the construction phase, and the operation phase by including the risk management process at each stage. The main objective of this research is to develop a risk management model of property development in the tourism area. To achieve the main objectives of this study the following secondary objectives are set: (i) exploring theories and models of risk management that are relevant to property development; (ii) identify the level of potential risk (hazard), the level of vulnerability, capacity, (iii) analyze risk factors based on the level of potential risk (hazard), vulnerability, capacity, (iv) recommend property development risk management model. This research was designed in

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6 (six) stages consisting of; (i) problem identification stage, (ii) scope development stage, (iii) data collection stage, (iv) data processing stage, (v) model development stage. Conceptually, the methodology proposed in this study refers to the key steps of risk management which include identification, qualitative/quantitative risk analysis, risk response and risk mitigation. This study justifies that based on literature studies it is necessary to develop a specific risk management model for property development that is more systematic, and easy to apply. qualitative/quantitative risk analysis, risk response and risk mitigation. This study justifies that based on literature studies it is necessary to develop a specific risk management model for property development that is more systematic, and easy to apply. Qualitative/quantitative risk analysis, risk response and risk mitigation. This study justifies that based on literature studies it is necessary to develop a specific risk management model for property development that is more systematic, and easy to apply.

ICDM-1432 GEOSPATIAL ANALYSIS IN MANAGING MEDICAL FACILITIES FOR COMBATING DISASTER TRIGGERED BY THE COVID-19 PANDEMIC Fathoni Usman1, Sumi Amariena Hamim2, Hendry Natanael Gumano2 and Fikri Jamil3 1Institute of Energy Infrastructure, Universiti Tenaga Nasional, Kajang 43000, Selangor, Malaysia 2Universitas Indo Global Mandiri, Km.4 Palembang 30129, Indonesia 3BAPPEDA LITBANG, Palembang, Indonesia  [email protected]

ABSTRACT A new virus emerged, which initially called Novel Corona Virus 2019 and later officially named Coronavirus disease 2019, COVID-19. The COVID-19 spread globally in less than a year since its outbreak in Wuhan, China, as the epicenter. The pandemic was beginning at the end of December 2019, and the World Health Organization just announced as a pandemic in early March 2020. With extremely fast commuting people, the spread of the contagious virus tremendously fast. The world was not ready to face this unprecedented

2ND ICDM 2020 95 situation. This paper presents an effort to fight the Covid-19 pandemic in Palembang City, the capital of South Sumatra Province, Indonesia. This study utilized information provided by the authority and convert it into geospatial data. Daily based data has been captured by providing tools for the enforcements to collect the data for monitoring purposes as well. The Susceptible, Infected, and Recovered (SIR) model is used in this study to determine the need for medical facility demand and map the dispersion of parameters in elevating infectious diseases. The SIR model is used to determine the effect of social distancing in the community to flatten the curve. The local parameters were used in the lowest administrative boundary of the district. Predictive demand for referred medical facilities can be delineated. From this study, the predicted peak of infected cases has a good agreement with the actual total cases. The result of the analysis can be used to manage the medical facilities to accommodate the demand.

ICDM-1435 THE ROLE OF LOCAL DISASTER RELIEF AGENCY TO INFLUENCING LOCAL GOVERNMENT TO MAKE NEW SPATIAL MANAGEMENT LOCAL REGULATION IN PANDEGLANG REGENCY Anwar Kurniadi, Siswo Hadi Sumantri Indonesia Defense University, Komplek IPSC Sentul, Bogor 16811, Indonesia  [email protected] ABSTRACT The provision of spacial management legislation will have a good impact to decrease disaster risk. Pandeglang Regency Administration Sunda Straits doesn't accommodate yet local regulation about tsunami disaster. Therefore when tsunami disaster came in 2018 result in a loss much of human being, property, and environment. The purpose of this study was to analyze the problem and the role of Local Disaster Relief Agency (LDRA) in making regent's regulation of spacial management of the Pandeglang Regency, especially in Sunda Straits. The Research method used qualitative with descriptive designed and also used data analysis of Miles and Huberman's theory. The results were 1) LDRA found problems about the utilization of adjacent coast by Pandeglang Regency was still not according to the rule of spatial planning. 2) LDRA: a) took play prescribed role as counselor, coach, motivator, and facilitator; b) took play enacted role to make policy process of Regulation Regency of Spatial

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Planning and also making spatial management process, utilization beach area to tourist sites, controlling in spatial management, motivating to communities to take participation utilization of seashore, and aking spatial management for disaster prevention. The conclusions were the role of LDRA of the Pandeglang Regency succeed analysis the problem after the tsunami disaster, and doing the prescribed role and also enacted role to influence the Pandeglang Regency Administration to make new Regent's Regulation about new spatial management to prevent the bad impact of the next tsunami disaster.

ICDM-1436 KNOWLEDGE AND ATTITUDES OF THE BNPB LEADERS TOWARDS NUCLEAR DISASTER THREAT IN INDONESIA: EXPECTATION AND REALITY IDK Kerta Widana, Dewi Apriliani, Samsul Maarif, Khairunnisa Adri Disaster Management Study Programme, Faculty of National Security of the Indonesia Defense University, Kawasan IPSC Sentul, Desa Tangkil, Kecamatan Citeureup,, Bogor 16810, Indonesia  [email protected] ABSTRACT The Utilization of nuclear technology has an inherent risk due to its radiation hazards that may trigger nuclear technology failure disasters. The government agency designated for coordinating disasters management activities in Indonesia is BNPB. As knowledge on nuclear hazards will influence attitudes and concerns for preparedness towards nuclear disaster, the research aimed to analyse the knowledge and attitudes of the BNPB leaders towards nuclear disaster threat in Indonesia. A case study qualitative method was used to explore and analyse the knowledge and attitudes of the BNPB leaders towards nuclear disaster threat in Indonesia. The research used knowledge and attitudes indicators for dealing with nuclear disaster threat derived from the natural disaster preparedness parameters, developed by LIPI-UNESCO / ISDR (2006), and the nuclear emergency preparedness requirements, develop by the IAEA (2015). In general, the results showed that the knowledge and attitudes of the BNPB leaders are sufficient (56.25%). While knowledge of causes, potential, types of events that may trigger nuclear disaster is sufficient, on the other hand, the attitudes towards nuclear disaster risk is still deficient. Thus,

2ND ICDM 2020 97 increasing the knowledge and attitudes on nuclear disaster threat, there is a need BNPB to enhance its role as the disaster coordinator to include coordination of exchange of information and knowledge of nuclear hazards with other related ministries/ agencies, such as BAPETEN and BATAN, into its program.

ICDM-1437 SHORT TRAINING TO IMPROVE KNOWLEDGE OF DISASTER MANAGEMENT ON BASIC LEVEL: A BEFORE AND AFTER STUDY Jazmi Adlan Bohari, IDK Kerta Widana Disaster Management Study Programme, Faculty of National Security, Indonesian Defense University, Kawasan IPSC Sentul, Desa Tangkil, Keamatan Citeureup, Bogor 16810, Indonesia  [email protected] ABSTRACT A massive effort to improve community resilience against disasters has been made by the Indonesian government. President Joko Widodo further emphasized this effort by ordering all governmental institutions and local governments to intensify disaster education for all the communities across Indonesia. As a contribution to this effort, Indonesia Defense University conducted a short training on basic disaster management for students, lecturers, and staffs. To evaluate the results of such training, a before-and- after study is used. The aim of this study is to examine if short training could improve participants’ knowledge in disaster management on a basic level. A pretest-posttest design was used to examine 105 participants’ knowledge before and after a five-day intervention consisting of eight basic disaster management courses regulated by the National Disaster Management Agency (BNPB). The grading system is used to understand how much the improvement of each participant, with the possibility of failing if not meeting the score threshold. This study showed that most of the participants’ knowledge on basic disaster management have improved with varying results: 60 percent of participants passed with “excellent” mark, 22 percent passed with “very good” mark, 12 percent passed with “good” mark, and the remaining eight percent failed to pass. This study provides an opportunity for humanitarian actors to use such training in order to improve knowledge in basic disaster management as a means of disaster education. However, long-term evaluation for each

2ND ICDM 2020 98 participant is required to examine the impact of this training on disaster resilience on community scale.

ICDM-1438 CIVIL AND MILLITARY COOPERATION ON 2018 LOMBOK EARTHQUAKE DISASTER EMERGENCY RESPONSE Dina Subagia, Deny WidI Anggoro, Syamsul Maarif, Sugeng Tri Utomo Disaster Management Study Programme, Faculty of National Security of the Indonesia Defense University, Kawasan IPSC Sentul, Desa Tangkil, Kecamatan Citeureup,, Bogor 16810, Indonesia  [email protected] ABSTRACT Lombok earthquake in 2018 gave huge impact to West Nusa Tenggara (Nusa Tenggara Barat) provincial government and its society. Lombok earthquake in 2018 is different from the others as it took place repeatedly in short time with huge magnitude. 2018 Lombok earthquake disaster emergency response has involved various elements, such as Indonesia Military Forces (TNI), Indonesia Police Department (POLRI), governmental institutions, society, as well as industries and all its resoursces. This research aims at analyzing civil-military cooperation in 2018 Lombok earthquake disaster emergency response and its affecting factors using qualitative method with primary and secondary data types. Interviews, observations, and documentations are conducted in order to collect data. This research analyzes civil-military cooperation process from the aspects of legal, organizational and governance, and operational. The result of the research shows that there was a difference in the aspect of command system used in the cooperation. The civil used agreement-based command system while military used hierarchical command system so that the military tended to be more dominant. Organization establishment as a part of effort improvement efforts has not been able to accommodate civil- military cooperation. Civil-military cooperation was initiated to fill gaps between civil and military using military resources. Thus, civil-military cooperation in 2018 Lombok earthquake disaster emergency response needed a better coordination and communication by providing a legal stand through

2ND ICDM 2020 99 local/governor’s regulations that accommodate all resources in West Nusa Tenggara province to cope with types of threats.

ICDM-1439 RESILIENCE: A NEW CONCEPTS IN DEALING WITH HYDRO- METEOROLOGICAL DISASTER AND IT’S APPLICATION AT THE PROVINCIAL LEVEL IN INDONESIA Adi Subiyanto, IDK Kerta Widana, Admiral Musa Julius Disaster Management Study Programme, Faculty of National Security of the Indonesian Defense University, Kawasan IPSC Sentul, Desa Tangkil, Keamatan Citeureup, Bogor 16810, Indonesia  [email protected] ABSTRACT Resilience is more capable of dealing with hydro-meteorological disasters compared to the risk. Resilience is a positive concept that puts forward adaptation efforts so that more in line with sustainable development goals. The purpose of this study is to introduce the resilience concept in dealing with hydro-meteorological disasters and to apply it at the provincial level in Indonesia. The methods used are: 1) measuring the climate risk index (CRI), 2) measuring the adaptation capacity index (ACI), and 3) classifying the provinces based on CRI and ACI. Grouping CRI and ACI are used to define provinces which have the potential to bounce back better (low CRI - high ACI), bounce back (high CRI – high ACI), recover but worse than before (low CRI - low ACI), and collapse (high CRI – low ACI). The results of the study indicate that throughout 2017 there are 10 provinces that South Sumatra, Central Java, and West Nusa Tenggara. In contrast, 3 provinces with the most have the potential to bounce back better, 7 provinces bounce back, 7 provinces recover but worse than before, and 10 provinces collapse. In general, 3 provinces that have the lowest resilience are resilient levels are Riau, Bangka Belitung, and Riau Islands.

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ICDM-1440 COMPARATIVE STUDY ON USING OF SNI 1726-2012 AND SNI 1726-2019 FOR CALCULATING OF INTERNAL FORCE MAGNITUDE OF LECTURE BUILDING IN D.I. YOGYAKARTA PROVINCE Muchtar Agus Tri Windarta1, Daniel Jesayanto Jaya2, Slamet Widodo2 1Student of Technical and Vocational Department, Graduate School of Yogyakarta State University, Jl. Colombo No.1, Yogyakarta, 55281, Indonesia 2Lecturer of Civil Engineering and Planning Education Department, Yogyakarta State University, Jl. Colombo No.1, Yogyakarta, 55281, Indonesia  [email protected] ABSTRACT The application of SNI 1726-2019 as a new standard has added and changed the scope of the procedure for calculating earthquakes to become wider so that it can keep up with the times. Earthquake loads can be analyzed statically or dynamically. Dynamic analysis using the response spectrum method. This study aims to compare the results of the calculation using the response spectrum based on SNI 1726-2012 and SNI 1726-2019 so that it can be seen whether buildings using the old rules are still safe or not. The building structure is modeled as an ordinary building and functions as a lecture building in the Province of D.I Yogyakarta with a total of 4 floors and a building height of 24,054 m. The results of the research prove that the forces acting on the building with modeling use the response spectrum of SNI 1726-2012 and SNI 1726-2019, the building structure scheme using the old standard is given a small safe limit, if a review is carried out using the new standard the structure of the building is required to be rehabilitated in preventing building construction failures. However, if a large safety limit is given in the planning using the old standard, if a review is carried out based on the new standard, it is possible that the building structure does not need to be rehabilitated if it meets the safety limit of the new standard.

ICDM-1441 USING A TUNED-INERTO-VISCOUS-HYSTERETIC-DAMPER (TIVHD) FOR VIBRATION SUPPRESSION IN MULTI-STOREY BUILDING STRUCTURES P Deastra, D J Wagg, N D Sims

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Department of Mechanical Engineering, The University of Sheeld, Sheeld S1 3JD, UK  [email protected] ABSTRACT This paper explores the use of a novel tuned-inerto-viscous-hysteretic-damper (TIVhD) for reducing the seismic response of multi-storey building structures. The TIVhD is an inerter-based damper device consisting of a linear hysteretic damper connected in series with an inerto-viscous damper. The layout of TIVhD is similar to that of tuned-inerter-hysteretic- damper (TIhD) with an additional viscous damping element in parallel with an inerter. The design is motivated by the fact that most inerter designs cannot completely remove the parasitic damping due to friction, fluid compression, etc. Moreover, the use of linear hysteretic damping is considered to be a more realistic approach when material damping is present. In this paper, the TIVhD is installed between the ground and the first-storey and is tuned by firstly assumed the viscous damping coefficient to be zero. Then the other three parameters are optimised following the tuning procedure of the TIhD that is based on the fixed-point theory with additional fine tuning procedure by targetting the first vibration mode of the multi-storey structure. The optimum TIVhD parameters are finally obtained using two scenarios: (1) amplifying its viscous damping coefficient and stiffness while keeping the inertance constant; (2) amplifying its inertance and stiffness while keeping the viscous damping constant. Both scenarios are aiming at the same reduction level of that given by the TIhD. Finally, the effectiveness of the TIVhD on reducing the structural response is demonstrated for both harmonic and seismic base excitation cases in the time domain. This has been made possible by a newly developed time domain response of linear hysteretic damping via the Hilbert transform and a time reversal technique.

ICDM-1442 THE IMPLEMENTATION OF REPRODUCTIVE HEALTH PROGRAM DURING THE FLASH FLOOD DISASTER IN SIJUNJUNG, WEST SUMATRA IN 2018 Dien Gusta Anggraini Nursal1,Aprianty2, and Susan Pestariangin Halawa1 1 Faculty of Public Health Andalas University 2 Faculty of Health Dian Nuswantoro University

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[email protected] ABSTRACT Disaster has negative impacts on the reproductive health conditions of disaster victims, especially for vulnerable groups, namely increased maternal and neonatal deaths, increased risk of cases of sexual violence, sexually transmitted infections, unwanted pregnancies and unsafe abortions. This study aims to evaluate the implementation of the reproductive health program in the flash flood disaster in Sijunjung Regency, West Sumatra in 2018. The research was conducted qualitatively with a systems approach in the form of input, process and output. Determination of informants were done by purposive sampling. Data collection was carried out through in-depth interviews, FGDs, and document review. The results showed the input component: there was no regional regulation on reproductive health programs during a disaster, there were no special personnel for reproductive health, adequate funds, adequate facilities and infrastructure. Process components: no activity planning, no special reproductive health team, data collection has been carried out, needs assessments have been carried out, reproductive health services are available, monitoring has been carried out regularly. Output component: lack of information regarding the existence of reproductive health services during a disaster to the community so that the services provided are not optimal. The implementation of reproductive health programs during the flash flood disaster in Sijunjung Regency has not been optimal in terms of input, process and output. It is hoped that the head of the Sijunjung Regency Health Office will improve the implementation of the reproductive health program during the disaster.

ICDM-1444 SOIL CHARACTERISTICS MAPPING PAGAR ALAM CITY (STUDY CASE: SOIL CHARACTERISTICS IN NORTH PAGARALAM SUB- DISTRICT) Sati Hery Permana1, Gumilar M. sang2, and Tarmizi1 1 Department of Civil Engineering, PagarAlam School of Technology 2 Department of Civil Engineering, Sriwijaya State Polytechnic of Palembang  [email protected] ABSTRACT

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PagarAlam City has an area of ±63.366 Ha (monografi kota pagaralam,2013). All this time, the people of PagarAlam City, especially North PagarAlam, has not had any reference to know the state of the soil type. Therefore in this research, the soil characteristic was analyzed and the researcher aimed to map and to know the soil characteristics as well as the soil water content in North PagarAlam Sub-District, PagarAlam City. Mapping is an image of the earth surface depicted in the plane in a certain projection. It can be concluded that mapping is a process of measurement, calculation and projection of the earth surface using a certain way or method. Soil is a layer of the earth surface derived from a parent material that has undergone further processing due to natural changes under the influence of water, air and various kinds of living or dead organisms (Dokuchaev 1870). After performing 20 tests on the soil samples, it can be seen from the sub- district map that has been interpolated and overlaid that the soil in North PagarAlam Sub-District has sandy silt soil type, among them there is a good graded sandy soil with an area of 19.69 km2 and poor graded sandy silt sandy soils with an area of 23.90 km2.

ICDM-1445 SUSTAINABLE AFFORDBLE HOUSING DELIVERY SYSTEM (HDS); A COMPARATIVE STUDY OF INDONESIA AND UNITED KINGDOM BEST PRACTICES Mutia Putri Monika1, Akhmad Suraji2, Jennifer Hardi3, Rudy Ferial2 1Student of Civil Engineering Department, Engineering Faculty, Andalas University 2Lecturer of Civil Engineering Department, Engineering Faculty, Andalas University3 3Lecturer of School of The Built Environment and Architecture, London South Bank University  [email protected] ABSTRACT

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Every country has its own way to provide a Housing Delivery System (HDS). The law of the Republic of Indonesia Number 1 of 2011 explained that the government provides and facilitates the people on housing and human settlement through the National Affordable Housing Program (NAHP) and One Million Houses Program. The United Kingdom’s government is improving the quality and quantity of properties for renting and also providing housing support for vulnerable people based on the Housing and Regeneration Act 2008. The ambition of adding one million new homes by 2020 is very attractive. Indonesia and the United Kingdom have the same aims at planning and building better places to live for everyone with affordable prices. Although the countries got a similar program, the housing delivery system in Indonesia needs to transform for a better achievement of its housing delivery system. This study will be focusing on Housing Delivery System (HDS) differences between Indonesia and the United Kingdom for sustainable affordable housing programs. The objective of this study is to identify the differences between housing delivery systems in Indonesia and the United Kingdom for affordable housing. This study aims at investigating the comparative analysis of data about housing delivery systems in Indonesia and the United Kingdom. This study will provide valuable information to improve the housing delivery system in Indonesia based on the United Kingdom for affordable and social housing.

ICDM-1447 SHAKING TABLE TESTS TO INVESTIGATE THE INFLUENCE OF GRAIN SHAPE ON THE EXCESS PORE WATER PRESSURE Muhajirah Department of Civil Engineering, Faculty of Engineering, Mataram University, Indonesia  [email protected] ABSTRACT Liquefaction that occurred in the Palu city in 2018 is the most devastating natural phenomena. The liquefaction phenomenon is a condition in which a saturated soil loses its strength due to an earthquake. This study aims to determine the increase in excess pore water pressure in solid particles and void particles after they are subjected to earthquake loading. Testing is done by shaking table. Earthquake loads are modeled with cyclic loads, which are

2ND ICDM 2020 105 sine waves with acceleration amplitudes of 0.35g and 0.38g. The results showed that liquefaction conditions had not yet occurred in cyclic load applications with an acceleration amplitude of 0.35g and a time duration of 7s. At an acceleration amplitude of 0.38g with a time duration of 60 s, the sand model underwent liquefaction at 7s after the test began. Analysis of the results of transducer records installed at a distance of 0.10 m from the surface of the test model shows that the addition of pumice by 10%, 30% and 50% can reduce pore pressures by 15%, 62%, and 85%, respectively.

ICDM-1450 STUDY OF GROIN STRUCTURES EFFECTIVENESS FOR AGAINST ABRASION IN PADANG BEACH Dalrino,Revalin Herdianto,Daniel Blesson Silitonga Civil Engineering Department Politeknik Negeri Padang, 3) Balai Wilayah Sungai Sumatera V West Sumatera  [email protected] ABSTRACT This study was conducted to evaluating the performance of existing coastal protection structure to restrain the rate of erosion as a result of the influence of hydrodynamics process. Condition that reviewed was in form of distance shoreline as simulation results to initial reference line before. STWAVE module used to determine wave height at near shore as transformation of deep water wave height that determined before from SMB method. One Line Model was conducted to get shoreline change in each time step calculation. Model consists of two conditions, with the absence of coastal structures and with structure respectively. The simulation result show that potential erosion occurs at Batang Arau river mouth with no protection structure. Large erosion predicted around 59.04 meters from the shoreline position early. With coastal protection, model result obtained sedimentation of 7.33 meters coastline from its initial position. This occurs at a distance of 475 meters from the boundary domain. Modeling results also showed erosion is 18.39 meters at a distance of 250 m from the boundary domain. This is likely due to the limited modelling conditions that without reviewing of littoral transport direction that occurred in perpendicular to the coast. Result study show that the presence of a groins in Padang coasts looks already quite effective to maintain the shoreline of the

2ND ICDM 2020 106 littoral transport direction, however the installation of groins seemingly did not give significant meaning in the addition of the coastline.

ICDM-1451 INTERRELATIONS OF RAINFALL AND MORPHOMETRIC CHARACTERISTICS IN GENERATING GEOLOGICAL DISASTERS OF KURANJI WATERSHED PADANG CITY Teguh Haria Aditia Putra1, Bambang Istijono2, Aprisal3, Bujang Rusman3, Andriani2, Abdul Hakam2, Adrinal3 and Taufika Ophiyandri2 1Student Doctoral Program Postgraduate Agricultural Science, Universitas Andalas 2Civil Engineering Department, Universitas Andalas 3Soil Science Department, Universitas Andalas  [email protected] ABSTRACT The Kuranji watershed is one of the watersheds in the city of Padang, which is currently experiencing development due to rapid population growth. This has resulted in land conversion from areas that have vegetation to built areas such as settlements. This affects the balance of the Kuranji watershed ecosystem and can lead to geological disasters. Therefore an initial analysis is needed in the development of the Kuranji watershed in the future. This study aims to analyse the interrelation of rainfall and morphometric characteristics that have an impact on geological disasters. The data used are data of maximum rainfall and maximum river discharge in the Kuranji watershed from 2009 - 2018. DEM data (30x30) used to calculate morphometric aspects, consisting of linear aspects, area aspects and relief aspects. The calculation of these aspects is done by a Geographic Information System (GIS) approach using ArcGIS 10.6 software. The result shows that the Kuranji watershed has an area of 22469,55 ha with dendritic drainage patterns. The linear aspect reveals that it has 1894 rivers with a total length of 774,6 km. This aspect explains that with the many tributaries, the Kuranji watershed has the potential to cause flooding. Aspects of the area explain that the Kuranji watershed has an elongated shape, steep slope and causes a rapid and large run-off discharge. Drainage density is at medium level with a value of 3,45 (km/km2) which is close to the high category. The higher the drainage density the smaller the chance of water for infiltration and the greater the river discharge. The relief aspect explains that the Kuranji

2ND ICDM 2020 107 watershed has a height between 0-1860 meters above sea level. Relief ratio and gradient ratio have a value of 0,08. Gradient ratios with high values result in fast and swift flow of surface and river water flow. This has the potential for landslides, channel erosion and river wall erosion. High rainfall, extreme morphometric characteristics, causes the Kuranji watershed to have a great potential for geological disasters.

ICDM-1455 THE PERFORMANCE SERVICE EVALUATION OF SIBINUANG REGULAR PASSENGER TRAIN Bayu Martanto Adji1, Sri Wahyuni2, Yosritzal1, Asthra Fashalli3 1Senior Lecturer, Andalas University, Limau Manis, Padang, 25163, Indonesia 2Graduate Student, Andalas University, Limau Manis, Padang, 25163, Indonesia 3Postgraduate Student, Andalas University, Limau Manis, Padang, 25163, Indonesia  [email protected] ABSTRACT The Regular Binuang train is one of the railway bases of public transportation, which is serving passengers of Padang – Pariaman corridor, from Padang Station in Padang to the Gandohria station in Pariaman. While PM No. 48 of 2015 regulates the Minimum Passenger Service Standards (SPM) in Railways. It needs to be investigated whether the services of the Regular Binuang passenger train are in accordance with the SPM. Three hundred respondents are gained by distributing questionnaires to Sibinuang (Regular) train passengers. The parameters observed in this study were 26 attributes. The analysis was conducted by using the Importance Performance Analysis (IPA) method. This method compares the level of importance assessment with the level of satisfaction (performance), which is separated into four quadrants. As a result, there are five attributes included in quadrant IV. Those attributes are ‘the availability of CCTV cameras,’ ‘toilets which have good air circulation,’ ‘the availability of a handle for standing passengers,’ ‘the availability of station information to be passed in sequence, and the availability of facilities for disabled passengers.’ The results of the analysis in this quadrant should be the primary reference for PT. KAI Regional Division II West Sumatra as the main priority to immediately improve.

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ICDM-1456 MOBILIZATION OF SOCIAL CAPITAL DURING POST HAIYAN IN THE TWO MUNICIPALITIES OF LEYTE PROVINCE, PHILIPPINES Marlon de Luna Era De La Salle University, Manila, Philippines  [email protected] ABSTRACT The paper describes how social capital has facilitated and hindered the disaster recovery of selected community residents of the municipalities of Tolosa and Dulag in Leyte Province who were victims of Typhoon Haiyan in 2013. A survey was conducted using questionnaire to 201 male and female respondents, on how they were able to utilize social capital in order to rebuild their lives, of their families and communities. The study revealed that the weak social capital displayed by the community could partly explain that the respondents felt moderate satisfaction with their state of recovery such as having more permanent and stable housing and livelihood. Having stronger social capital could possibly increase levels of satisfaction among the community residents of Tolosa and Dulag and improve their overall recovery and resilience by building back better.

ICDM-1457 IMPLEMENTATION EMPOWERING COMMUNITIES IN SMALL SCALE IRRIGATION PROJECTS DURING COVID 19 PANDEMIC IN PADANG AND PADANG PARIAMAN DISTRICS Bayu Martanto Adji, Bambang Istijono, Taufika Ophyandri, Benny HIdayat Faculty of Engineering , Andalas University, West Sumatra Province, Indonesia  [email protected] ABSTRACT This study was conducted to evaluating the performance of existing coastal protection structure to restrain the rate of erosion as a result of the influence of hydrodynamics process. Condition that reviewed was in form of distance shoreline as simulation results to initial reference line before. STWAVE module used to determine wave height at near shore as transformation of deep water wave height that determined before from SMB method. One Line Model was

2ND ICDM 2020 109 conducted to get shoreline change in each time step calculation. Model consists of two conditions, with the absence of coastal structures and with structure respectively. The simulation result show that potential erosion occurs at Batang Arau river mouth with no protection structure. Large erosion predicted around 59.04 meters from the shoreline position early. With coastal protection, model result obtained sedimentation of 7.33 meters coastline from its initial position. This occurs at a distance of 475 meters from the boundary domain. Modeling results also showed erosion is 18.39 meters at a distance of 250 m from the boundary domain. This is likely due to the limited modelling conditions that without reviewing of littoral transport direction that occurred in perpendicular to the coast. Result study show that the presence of a groins in Padang coasts looks already quite effective to maintain the shoreline of the littoral transport direction, however the installation of groins seemingly did not give significant meaning in the addition of the coastline.

ICDM-1460 MITIGATION OF LEVEL CROSSING HANDLINGS ON THE THE RAILWAY LINE, PADANG - PULAU AIE CORRIDOR Bayu Martanto Adji1, Muhamad Anshari2, Purnawan1 1Senior Lecturer, Faculty of Engineering , Andalas University, West Sumatra Province, Indonesia 2Post Graduate Student, Civil Engineering, Faculty of Engineering , Andalas University, West Sumatra Province, Indonesia  [email protected] ABSTRACT In disaster management plan, transportation accident is one of the impact of the technology failures. Fourteen train accidents in the Drive II Region of West Sumatra during 2020. On March 12, 2020, PT. KAI, West Sumatra has reactivated railway Padang-Pulau aie corridor. At the beginning of the reactivation phase, there were created twelve of level crossings along the railway corridor. At this point, it is very prone to traffic accidents, handlings is necessary at the level crossing. In this research, there were conduction identification of the requirement of signs, markings, traffic lights and road equipment at the level of crossings, then a checklist is made whether signs, markings, traffic lights and road equipment at the level crossing of the train line, corridor Padang-Pulai aie are qualify as an effort to prevent accidents.

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The study was conducted by reviewing regulations related to railroad crossings and an inventory of all crossings in the Padang-Pulau Aie corridor was carried out whether the crossing was fulfilled as a safe crossing in accordance with existing regulations. As a result, handlings have been carried out at the level crossing along teh corridor, but there are a number of requirement on the existing regulations that have not yet been fulfilled.

ICDM-1461 ANALYSIS OF THE CONSTRUCTION SERVICE PROVIDER PERFORMANCE DURING THE COVID-19 PANDEMIC IN SUMATERA BARAT PROVINCE, INDONESIA Dede Oktria Syaferi, Benny Hidayat Civil Engineering Department, University of Andalas, Main Campus Limau Manis, 25166, Indonesia  [email protected] ABSTRACT The covid-19 pandemic had struck the world and affected the national development, especially in Indonesia. Many sector of constructions experiencing the disruption, therefore it has direct impact to service provider performance. The aim of this study is to analyse the internal and external dominant factors that effect on service provider performance during the covid- 19 pandemic in Sumatera Barat Province, Indonesia. This was a cross- sectional study with qualitative approach using a self-administered questionnaire with 26 variables. Fifty eights respondents in the water resources field were participated on this study. The data was collected and analysed by computerized analysis using multivariate analysis (logistic regression test). It was concluded that the distribution of salaries on managerial aspect becomes the internal dominant factor, then government policy factors regarding the implementation of work outside becomes the external crucial factor that greatly affects the service provider performance.

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So, it is suggested to well-organized distribution of salaries and well preparation of conditional administration related to government policies during the Covid-19 pandemic.

ICDM-1462 TRAPEZOIDAL CORRUGATED PLATE BEHAVIOR ON STEEL PLATE SHEAR WALL Nidiasari, Sabril Haris, and Jati Sunaryati Civil Engineering Deparment, Faculty of Engineering, Universitas Andalas, Indonesia  [email protected] ABSTRACT Corrugated Steel Plate Shear Wall (CoSPSW) is a corrugated steel plate used in steel frame structures with shear walls instead of using flat plates. Corrugated steel plates are reported to have greater strength than using flat steel plates. The specimen model used in this study is a one-story steel frame with shear walls using trapezium corrugated plates at an angle of 45 . The analysis was carried out with a finite element analysis using Patran and MSC Nastran software. Structural loading in the form of a monotonic static load with displacement control. The thickness of the corrugated steel plate is varied to analyze the effect of the depth of the corrugated plate on the behavior of the structure. The results of the analysis of the specimen model indicate that the value of strength, stiffness, and ductility will increase along with the thickness of the corrugated plate. The CoSPSW structure begins to behave in ductile when the depth of the corrugated plate used is 2/3 of the cross-section web thickness.

ICDM-1464 THE STUDY OF SPLIT MASTIC ASPHALT PAVEMENT WITH LATEX ADDITION FOR FLOODED ROAD Elsa Eka Putri, Rieke Rulvita Sari Department of Civil Engineering, Faculty of Engineering, University of Andalas, Padang, Indonesia  [email protected] ABSTRACT

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This study aims to determine the effect of latex addition to the durability of the Split Mastic Asphalt (SMA) pavement mixture in order to increase its durability when the road is flooded. Durability test conducted where the sample was immersed in water for 0, 24, 48, 72, 96 hours, with latex variations of 1.5%, 2%, 2.5%, 3%, 3.5%. From the results of the study it was found that the durability of asphalt mixture without latex was higher than that of SMA with latex. The durability indexes were 6.740%, 10.648, 11.717, 13.884, 14.766 and 9.991 for 0%, 1.5%, 2%, 2.5%, 3%, 3.5% latex in the mixture respectively. The higher the index the lower the strength. In addition, the longer the soaking time the lower the strength. However, as the latex in the mixture increases, the stability was also increase achieved at 3% latex. The SMA pavement mixture with the addition of latex does not increase its durability but can increase its stability value. So, it is recommended that SMA pavement mixture with latex is only for pavement where the water level is not high.

ICDM-1467 LIQUEFACTION DISASTER MITIGATION ON RAILWAY CORRIDORS IN PADANG CITY, WEST SUMATRA Bayu Martanto Adji2, Bambang Istijono1, Abdul Hakam1, Andriani2, Satriawan2, and Muhammad Anshari3 1Professor Lecturer, Andalas University, Limau Manis, Padang, 25163, Indonesia 2Senior Lecturer, Andalas University, Limau Manis, Padang, 25163, Indonesia 3Post Graduate Student, Andalas University, LimauManis, Padang, 25163, Indonesia  [email protected] ABSTRACT Earthquake-induced liquefaction, which turns the soil to liquid from solid, can cause substantial lateral movement to the ground surface. It has detected the potential liquefaction due to earthquakes in WestWest Sumatra is very high. The most problems due to liquefaction are loss of stability and significant

2ND ICDM 2020 113 settlements. For particular infrastructure such as railway, liquefaction has a considerable influence on the railway embankments. Then, it needs to be investigated whether the railway corridors are built in areas with a high potential of liquefaction. The analysis method used in this research is by comparing railway corridors against the Map of West Sumatra liquefaction potential. This study presents the most railway corridors in West Sumatra that were built in areas with having the liquefaction potential. For the corridors which may be potentially destroyed by liquefaction, special treatment must be applied to them.

ICDM-1468 ANALYSIS OF LANDSLIDE POTENTIAL DUE TO CHANGES IN LAND USE/LAND COVER AT THE KURANJI WATERSHED, PADANG USING THE NORMALIZED DIFFERENCE BUILT-UP INDEX (NDBI) Andriani1, Geri Despita Putra2, Salsabila Ramadhani2, Ismael2, Hendri Gusti Putra1 1Civil Engineering Departement, Andalas University, Padang, 25163, West Sumatera 2Student of Civil Engineering, Andalas University, Padanf, 25163, West Sumatera  [email protected] ABSTRACT West Sumatra is one of the provinces that is prone to natural disasters, one of which is landslides. Landslides can be caused by natural and human factors. Land use change is one of the causes of landslides. The earthquake and tsunami predictions in the city of Padang have caused very rapid land use changes, especially in the Kuranji watershed, where people tend to seek locations that are safe from tsunamis and liquefaction. Changes in environmental characteristics such as: slope geometry conditions, vegetation density and changes in land use will affect runoff coefficient and rainwater filtration, triggering a potential for landslides. In addition, natural factors such as: geological conditions, soil type, rainfall, seismicity and others greatly affect the potential for landslides. This study aims to analyze the potential for landslides due to changes in land use in the Kuranji Watershed (DAS). Remote sensing is one of the most effective ways to determine changes in land use over a certain period of time. The identification of land use change is carried out using a remote sensing approach, namely the Normalized Difference Built-Up

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Index (NDBI. Based on land use, the relationship between runoff coefficient and potential landslides that occurred during the 2007 to 2019 period was sought. The results showed that there had been an increase in the built-up area in the Kuranji watershed from 1602,212 ha (2007) to 2897,513 ha (2019). ) while the vegetation area has decreased. An increase in runoff coefficient of 3.9% from 2007 to 2019. The value is still safe because of an increase in the average per year of 0.325%. Changes in runoff coefficient values in the Batang Kuranji watershed are influenced by changes in land use in the Batang Kuranji watershed. From the results of this study, thematic geospatial information will be obtained in the form of the relationship between changes in land use and the potential for landslides that occurred in the Kuranji watershed during the period 2007 to 2019.

ICDM-1469 ANALYTICAL FRAGILITY CURVE DEVELOPMENT OF MATERNITY AND CHILDREN’S M. DJAMIL HOSPITAL BUILDING PADANG DUE TO EARTHQUAKE AND TSUNAMI Aimuthia Citra Utami, Ruddy Kurniawan, Fauzan Civil Engineering Department, Andalas University, Padang, 25163, Indonesia  [email protected] ABSTRACT M. Djamil Hospital is the largest public medical facility in Padang area with over 800 patient beds. The magnitude 7.6 Western Sumatra earthquake of September 30, 2009 caused the first floor of one housing outpatient services collapsed. Padang city is located in West Sumatra province which is recorded as an earthquake and tsunami prone area in Indonesia. Risk reduction strategy can be implemented by assessing the vulnerability of building through fragility curve. In this study, the fragility curve was carried out to an existing Maternity and Childrens’s M. Djamil Hospital building due to earthquake and tsunami in sequence. Building’s structural was modelled in ETABS v. 17 and analyzed by using Pushover analysis and Nonlinear Time History analysis. This structural model was subjected through a total of 40 ground motion data from El Centro, Northridge, Kobe and Padang. Each ground motion data was normalized from 0.2g to 2.0g of peak ground acceleration and continued with tsunami load. Analysis results consist of drift at yield point and structure maximum drift, which are then generated into a fragility curve based on Hazus

2ND ICDM 2020 115 standard. The result of earthquake fragility curve represents that the probability of slight damage level is 100%, moderate 100%, extensive 92% and collapse 5.4%. Meanwhile, earthquake-tsunami fragility curve represents the probability of slight damage level is 100%, moderate 100%, extensive 98% and collapse 11%.

ICDM-1470 STUDY OF MOTORCYCLE POSITIONS DISTRIBUTIONS ON-ROAD LANES WITH TRAFFIC FLOW VARIABLES T Kurniati, Purnawan, A N Fajri Civil Engineering Department, Andalas University, Padang, Indonesia  [email protected] ABSTRACT Currently, two-wheeled vehicles or motorcycle dominate more than 80% of motorized vehicles in Indonesia. In traffic environments dominated by motorcycles, motorcyclists are usually not disciplined using road lanes and frequently change lanes and speed. and reduced levels of safety. This study aims to identify the percentage distribution of motorcycle positions on divided roads in Padang City and analyze the correlation between the distribution of motorcycle positions and the percentage of total motorcycle, percentage of light vehicles, degree of saturation, and average speed of light vehicles. Case studies on roads with four lanes 2-way lane divided type, namely on M.Hatta and Sutomo road. The primary data obtained through video recording on road segments. Data of recorded videos were read by using software Avidemux. The highest percentage distribution of motorcycle positions is in the middle sector. At peak hours in the morning, the distribution of the percentage of motorbikes in the right sector on M. Hatta Road was more than 40%, and on Sutomo Road were more than 25%. Correlation coefficient values between the distribution of motorcycle percentages and the degree of saturation are significant for all peak hours and all sectors. The value of r is negative and positive results in unclear patterns.

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THE EFFECT OF WATER-SATURATED SAND FRACTION ON THE SAND BOILING PHENOMENON R Yuliet, A Hakam, Mas Mera,and Fauzan Civil Engineering Dept., Andalas University, Padang , Indonesia  [email protected] ABSTRACT Sand boiling is a condition where the effective stress is equal to zero so that the stability of the soil will be lost. This phenomenon usually occurs in saturated sand with upward flow of water. The loss of soil stability can cause the building above it to collapse. One of the parameters that affect the loss of stability of sand is the size of the sand particles which is called the sand fraction. In the present study, variations in the fraction of water-saturated sand were used to see the mechanism of boiling. The present experimental study was carried out with two scenarios. The first scenario uses fine sand, called the FS scenario, and the second scenario uses a mixture of coarse sand and medium sand, called the CS-MS scenario. For the FS scenario the fine sand fraction only consists of one layer, while for the CS-MS scenario the sand consists of two layers where the coarse sand fraction is above the medium sand fraction. All fractions of sand (FS, MS and CS) used in the present study are categorized as very loose sand because they have a relative density of less than 15%. In all scenarios, the pressure head of the upward water-flow indicated by piezometers A, B, C and D is recorded every 10 seconds. The total stress, pore water pressure and the effective stress due to the change in the elevation of the upward flow are calculated and plotted. From the analysis using the effective stress concept, it was found that in the FS Scenario sand boiling occurred within 10 seconds at a depth of 0.12 m from the ground surface, whereas in the CS-MS Scenario boiling did not occur. This shows that the use of a coarser sand fraction can prevent sand boiling.

ICDM-1475 DECISION SUPPORT SYSTEM IN DETERMINING THE PRIORITY OF DISASTER MITIGATION INFRASTRUCTURE DEVELOPMENT IN VILLAGES USING THE SIMPLE ADDITIVE WEIGHT (SAW) METHOD B Hidayat, A Rasadi, and T Ophiyandri Civil Engineering Department, Universitas Andalas

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[email protected]

ABSTRACT Disasters are a global problem now. Particularly in Indonesia, the perspective of disaster management has entered a new paradigm, from previously only focusing on emergency response activities, now also using mitigation and preparedness approaches. Mitigation and preparedness are carried out when a disaster does not occur. Disaster mitigation or mitigation needs to be integrated with disaster risk reduction efforts into development for the sake of sustainability and mainstreaming disaster risk reduction into village program and activity planning. In other words, disaster risk analysis must be one of the bases in planning sustainable development. The construction of facilities and infrastructure for disaster management is also one of the priorities in village development. However, village infrastructure development planning that has been implemented has not yet considered the disaster management aspects. In this study a decision support system model was designed that considers aspects of disaster management that are integrated into the village development planning process.

ICDM-1476 THE IMPACT OF TIDAL FLOOD ON LAND AND BUILDINGS BY 3D MODELING IN THE AREA OF PEKALONGAN Nursetiawan, Muhammad Ghutsni Faisal, Jazaul Ikhsan Dept of Civil Engineering, Universitas Muhammadiyah Yogyakarta, Indonesia  [email protected] ABSTRACT Coastal is an area having great potential to inundated due to the impact of tides. This condition causes the residential area, land, and place of community activities to have a high vulnerability level to tidal flooding, as found in the region of Pekalongan City, North coast of Java. This study aimed to create a 3D model and visualization of tidal flood inundation due to sea-level rise and the number of land areas and buildings most affected by the rob flood with prediction scenarios for 2029, 2069, and 2119. The modeling prediction of inundation rob flood employed the Geographic Information System (GIS) consisting of ArcMap for processing spatial data, ILWIS to analyze by iteration

2ND ICDM 2020 118 for inundation of flood predictions, and ArcGIS pro for performing 3D visualization of buildings and the results of tidal flood analysis namely flooded areas and buildings. The tidal flood prediction scenario used in this analysis was the highest tide value on the coast of Pekalongan City for 20 years, which was 1.05m, then added to the sea-level rise of 6 mm/year according to IPCC 2007 predictions. The modeling utilized the scenario with a tide height of 1.11m in 2029, 1.35m in 2069, and 1.65m in 2119. The analysis results with the three scenarios revealed that the most affected area would be the North Pekalongan District. In more detail, the 1.11m scenario would affect flooded areas of 730.65 Ha and flooded buildings of 6,777 units. In the 1.35m scenario, 829.56 Ha areas and 9,186 building units would be flooded. Moreover, the 1.65m scenario would affect 906.25 Ha areas and 11,361 building units.

ICDM-1477 AN INFORMATION MANAGEMENT SYSTEM FOR EFFECTIVE DISASTER RELIEF OPERATIONS R Patrisina, D Meilani, M Habib Industrial Engineering Department, Faculty of Engineering, Universitas Andalas, Padang, Indonesia  [email protected] ABSTRACT During an emergency situation, there is often confusion in information that can complicate disaster management efforts. For this reason, it is necessary to design an information system that can support emergency response operations. The purpose of designing this information system is to design a disaster management information system to strengthen emergency response operations quickly, precisely, and dynamically, and can be a decision supporter to facilitate emergency response operations. The system was developed using the waterfall method using the Object-Oriented Programming (OOP) approach. The design of information systems uses the PHP programming language and uses MySQL as a database. Then the system that has been designed is verified and validated using the Black Box method. The results of the information system design can provide dynamically needed information so that it can assist in scheduling and allocating volunteers, verifying data from donors, making TRC reports, collecting data and refugee needs, and estimating the distance between posts and evacuation sites.

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ICDM-1479 THE EFFECT OF DEM RESOLUTION ON CALCULATION OF EROSION IN BATANG KURANJI WATERSHED Revalin Herdianto1, Elvi Roza Syofyan1, Bambang Istijono2 1Civil Engineering Department, Politeknik Negeri Padang, Padang, 25163, Indonesia 2Civil Engineering Department, Faculty of Engineering, University of Andalas, Padang  [email protected]

ABSTRACT Batang Kuranji Watershed with a total area of Watershed 224.7 km2 comprises Batang Sungai Sapiah Sub-watershed, Batang Danau Limau Manih Sub-watershed, Batang Sungkai Sub-watershed, Batang Bukik Tindawan Sub- watershed and Batang Padang Janiah Sub-watershed. Batang Kuranji flows from upstream of the Bukit Barisan with the highest elevation + 1,605 meters above sea level at the peak of Bukit Tinjau Laut and empties into the Padang beach with a main river length of ± 32.41. DEM has an influence on the results of land erosion by affecting the slope accuracy. The higher the DEM resolution, the more precise the results of the soil erosion simulation. With the Musle method the rate of erosion occurs in the Batang Kuranji watershed, with DEM data of 8m and land cover in 2017, an erosion rate of 23.91 tons / ha / year is classified in hazard class II (light), DEM data of 30m erosion rate is 7. 70 tons / ha / year are classified in hazard class I (very mild), with DEM data of 90m erosion rate of 4.54 tons / ha / year classified in hazard I class (very light). It can be seen that the higher the DEM resolution, the more accurate the erosion rate calculation in the watershed..

ICDM-1480 EFFECT OF REINFORCEMENT RATIO ON FLEXURAL BEHAVIOR OF REINFORCED CONCRETE BEAMS STRENGTHENED WITH CFRP PLATES Rendy Thamrin1, Zaidir1, Amirah Zakiyyah2

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1Civil Engineering Department, Engineering Faculty, Universitas Andalas, Padang, Indonesia 2Graduate Student at Institut Teknologi Bandung, Bandung, Indonesia  [email protected] ABSTRACT An experimental study was carried out to investigate the effect of tensile reinforcement ratio on the flexural behavior of reinforced concrete beams strengthened with Carbon Fiber Reinforced Polymer (CFRP) plates. This study aims to determine the effect of reinforcement ratio on debonding failure load of reinforced concrete beams reinforced with CFRP plates. Six reinforced concrete beams consisting of three control beams and three beams strengthened with CFRP plates were tested. The beams were simply supported and loaded with four-point bending. The test variable was tensile reinforcement ratio (1%, 1.5%, and 2.5%). CFRP plates were glued on the bottom of the beams with the purpose to increase the flexural capacity of the beams. Analytical prediction using fiber element method was also carried out to obtain a full flexural response of the beams due to bending load. The test results show that the flexural capacity of beams with CFRP plates higher for about 10% to 50% than the control beams. However, at a specified load level, beams with CFRP plates suddenly collapse due to delamination of CFRP plates. In addition, analytical calculation predicts well the test results in excellent accuracy.

ICDM-1482 THE SEISMIC RESPONSES OF RC FRAMES INFILLED WITH FULL AND PARTIAL MASONRY WALLS UNDER CYCLIC LATERAL LOAD Maidiawati1, J Tanjung2 1Civil Engineering Department, Padang Institute of Technology, Padang, Indonesia 2Civil Engineering Department, Andalas University, Indonesia  [email protected] ABSTRACT This paper presents the seismic responses of full and partial brick masonry infilled frames under lateral load. Four test specimens of ¼ scale-down single- story single-bay, including one RC bare frame, one RC frame with a full brick masonry wall, and two RC frames with partial brick masonry walls were tested under quasi-static cyclic loading. During the tests, initial crack, cracks

2ND ICDM 2020 121 propagation, and failure processes of specimens were monitored. Lateral forces and displacements in-plane direction at several points on specimens were recorded. Consequently, it was found the differences of seismic responses between a bare frame, fully masonry infilled frame, and partially masonry infilled frames. Installing full or partial masonry infills in the RC frames structure can change the failure mechanism, increase the lateral strength and stiffness, but decrease the ductility performance of the whole structure.

ICDM-1484 GEOSPATIAL ANALYSIS FOR DEVELOPING AGRICULTURE OF MARSHLANDS TO SUPPORT REGIONAL FOOD SECURITY IN THE ERA OF PANDEMIC COVID-19 IN HST REGENCY, KALIMANTAN SELATAN Sobar Sutisna1, Sa’dianoor2, Syamsul Maarif1, Jazmi Adlan Bohari1 1Disaster Management Study Programme, Faculty of National Security of the Indonesian Defense University, Kawasan IPSC Sentul, Desa Tangkil, Kecamatan Citeureup, Bogor 16810, Indonesia. 2Doctoral Programme, Faculty of Technology of the Indonesian Defense University, Kawasan IPSC Sentul, Desa Tangkil, Kecamatan Citeureup, Bogor 16810, Indonesia.  [email protected] ABSTRACT Hulu Sungai Tengah (HST) Regency has a very large marshland in the South Kalimantan Province. Since 2019 HST is promoted to be a model for Indonesian local foods and agricultural development program, known as SERASI Program. SERASI stands for “Selamatkan Rawa dan Sejahterakan Petani” (or in English “save marshland and bring prosper to farmers”) that aimed to exploit marshland which was not productive yet. The SERASI will convert a non-productive caved swamp areas to a productive rice fields which able to support regional food security sustainably. In order to able define the suitable marshland area for SERASI Program in HST Regency precisely in the era of pandemic Covid-19, this research had been carried out by applying geospatial analyses method using Sentinel Satellite Imageries acquisitioned from two different epochs, i.e. of 20th February 2019 and of 20th February 2020. GPS coordinates collected from the field were used for ground truthing imagery data. The results of geospatial analysis have provided evident that

2ND ICDM 2020 122 paddy fields in caved marshland area is increased that means the SERASI Program is successful. From interviews’ data collected from 14 villages shows that the program of SERASI is accepted by local farmers and also local government. From image combination analysis concluded that the area of caved rice fields is suitable for developing agriculture in marshlands.

ICDM-1485 THE ROLE OF COMMUNICATION AS THE DISASTER RISK REDUCTION IN INDONESIA CAPITAL CITY TRANSFERENCE POLICY Zahrotul Khumairoh, IDK Kerta Widana, Siswo Hadi Sumantri Disaster Management Study Programme, Faculty of National Security of the Indonesian Defense University, Kawasan IPSC Sentul, Desa Tangkil, Keamatan Citeureup, Bogor 16810, Indonesia  chumik.zahrogmail.com ABSTRACT Disaster can not be avoided, but the risk of disasters is able to be diminished through mitigation. Mitigation in the form of discussion and communication becoming an instrument of society in facing the matter of life. This study describes the role of government in preventing to face the hazard potentials and disaster mitigations, such as natural hazards, disasters and conflicts through the effective communication. This study applied a descriptive qualitative approach through forum discussion group method and literature study. The informants in this study are the stakeholders of government organizations those are the experts of disasters, such as BNPB, BMKG, KLH and the academics. The theories in this study are the theory of communication and disaster mitigation focusing on the effective communication for enhancing the disaster risk reduction related to Indonesia capital city transference plans in Kalimantan. The result of this study shows that the role of disaster communication can help the government giving and socializing the information to the society in order to support the successful of disaster risk reductions.

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THE IMPACT OF THE COVID-19 PANDEMIC ON THE SOCIAL LIFE OF FEMALE WORKERS Ernalem Bangun, IDK Kerta Widana Disaster Management Study Program, Faculty of National Security of the Indonesian Defense University , Sentul IPSC Area, Tangkil Village, Citeureup Subdistrict, Bogor 16810, Indonesia  [email protected] ABSTRACT The COVID-19 pandemic has a significant impact on women workers. The rights of women workers who have been marginalized have further degraded during the PSBB and continued to deteriorate during this period of the New Normal Life. The economic impact arising from the business sector is affected and forced to carry out several diverse policies, ranging from business closures, permanent or temporary operational stoppages forcing them to layoffs, job rotation, employee reductions, business shifts or cost-cutting and as a result, many workers are experiencing changes to the work system, especially women who are more affected. This has a dual impact socially and economically, as women workers as housewives are forced to bear the burden of families experiencing declining incomes but also increased spending due to the education of schoolchildren who are currently implementing digital learning systems through various online methods. This at the same time has a double effect on working women, who still have a responsibility to work, but also replace the role of teacher at home, as well as the burden of extra costs for a large number of internet packages. Some of them are more severely affected when the husbands as the head of the household have lost their job, which means the wives take over the overall burden of the family so that some of them choose to return to hometown and turn into informal workers.

ICDM-1487 EXPERIMENTAL STUDY OF 4 SCREW JOINTS WHICH WERE PARALLEL TO THE TENSILE FORCE IN COLD FORMED STEEL Jati Sunaryati, Sabril Haris HG, Riski Hidaya

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Department of Civil Engineering, Andalas University, 25163, Limau Manis, Indonesia  [email protected] ABSTRACT Cold formed steel is steel which, in the process of its formation, is made by bending thin steel sheets that were carried out at room temperature. Cold formed steel was widely used for building construction such as roof truss. Failures in cold-formed steel structures were mostly found in the connection between slight steel. This study aims to find and compare the ultimate load that can be borne by light steel connections in directional and opposite directions. The mild steel profile used is steel in the form of a channel measuring 75x35x33 mm with a thickness of 0.75 mm. There were six specimens. The joint with drilling screw was installed in the same direction and in the opposite direction. Self-drilling screw used is 5 mm in diameter. The load given is a monotonic static load. The variations in the distance of the screws used for light steel joints are 2 cm, 3 cm and 4 cm. The magnitude of the yield stress value (fy) after tensile testing of material is 531,129 MPa. The SA-2 connection for a 2 cm unidirectional installation has the ultimate load of 1084 kg and displacement of 13,848 mm. The SA-3 a 3 cm unidirectional installation has an ultimate load of 1116 kg and a displacement of 16,554 mm. SA-4 the 4 cm unidirectional installation is the ultimate load of 1168 kg and displacement of 13,522 mm. For BAV-2 mounting opposite the distance of 2 cm is the ultimate load of 1164 kg and displacement of 10,050 mm. For BAV-3 mounting opposite the 3 cm distance is the ultimate load of 1120 kg and displacement of 13,009 mm. For BAV-4 mounting opposite, the distance of 4 cm is the ultimate load of 1082 kg with a displacement of 12,878 mm

ICDM-1490 FRAGILITY ASSESMENT OF MID-RISE RC BUILDING USING HAZUS METHOD IN HIGH SEISMIC ZONE Ade Prayoga Nasution1, Masrilayanti2, Jafril Tanjung2, Zairah Nabilla Sidiq2 1 Department of Civil Engineering, Institut Teknologi Sumatera, 35365, Terusan Ryacudu, Indonesia 2 Department of Civil Engineering, Andalas University, 25163, Limau Manis, Indonesia

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[email protected] ABSTRACT Earthquake is a pounding that caused by a released energy of ground motion. The earthquake in high seismic zone often caused damages and loss of live. Thus, there is urgent and important to evaluate the seismic vulnerability of structure before an earthquake occurred in order to prevent the damage and safe of lives. The seismic vulnerability can be described by using fragility curves. These fragility curves were developed by HAZUS method that is describing the probability of the structure damage due to various ground shaking or lateral displacement of the building. This paper addresses the performance based design method to consider the building capacity due to Padang ground motionand. Therefore, the damage probability was calculated by using the lognormal distribution with the probabilistic parameter was acquired by HAZUS engineering building module. Then, the fragility assesment of the building was compared in transverse and longitudinal direction. The result reveals that the building is vulnerable to collapse due to Padang ground motion.

ICDM-1491 TRAFFIC MANAGEMENT AT LANDSLIDE DISASTER IN WEST SUMATERA AND ITS IMPACT TO PASSENGER AND DRIVERS Purnawan and Miftahul Khairah Department of Civil Engineering, University of Andalas  [email protected] ABSTRACT West Sumatra is one of Indonesia province that always experiences landslides during the rainy season. Based on data from BNPB, in the last 10 years, 166 landslides have occurred in West Sumatra. The landslide materials covers partially and even the entire road wide, so it interferes the traffic flow activities in the lane. This study aims to identify traffic management that is carried out in the landslide disaster zone, the impacts arising from landslides are identified. The study was conducted by exploring the experiences experienced by drivers and passengers when using vehicles in the West Sumatra region. Structured questionnaires were created and distributed online and directly to respondents. From the results of data analysis, it was

2ND ICDM 2020 126 obtained that landslide most often occurred in the Padang-Solok road at Sitinjau Lauik and in the Padang-Padang Pariaman road at Silaiang. These two routes have high traffic flow. Majority of landslide materials are soil, it causes traffic congestion. Traffic management by opening and closing one- way roads is a type that is mostly conducted to reduce traffic congestion, this activity is carried out by the police and the people around the location. The most impact that experienced by driver and passenger during waiting for cleaning the landslide were tired and loss of time.

ICDM-1492 A SIMPLE METHOD FOR DESIGN SEGMENTAL RETAINING WALL STRUCTURE D I Mazni1,2, A Hakam3, J Tanjung3, F A Ismail3, Yossyafra3 1 Doctoral Program, Departement of Civil Engineering, Faculty of Engineering, Universitas Andalas, Indonesia 2 Civil Engineering Study Program, Universitas Dharma Andalas, Indonesia 3 Departement of Civil Engineering, Faculty of Engineering, Universitas Andalas, Indonesia  [email protected] ABSTRACT So far, in designing a Segmental Retaining Wall (SRW), it has always been considered as designing a gravity retaining wall because both rely on the weight of the structure. The reality in the field shows that the stability behavior that occurs in SRW is more flexible than a rigid Gravity wall. This laboratory- scale study describes a method that takes into account the shear effect between segmental blocks. Tests are carried out, taking into account soil behavior in two dimensions. The additional static uniform load is applied to the ground behind the SRW wall. In calculating the shear stability, the effect of friction or flexibility between the segment blocks is considered. The pseudo sliding coefficient between segmental blocks affects the safety factor of shear stability. The pseudo shear coefficient value depends on the weight and surface roughness of the segmental blocks. The safety factor of the shear stability, which takes into account the presence of a pseudo shear coefficient, is smaller than without considering the effect of the pseudo shear coefficient.

ICDM-1493

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IMPACT OF UNCONTROLLED LAND USE CHANGE ON THE ROAD PERFORMANCE OF THE TSUNAMI EVACUATION ROAD IN THE MUNICIPALITY OF PADANG Yossyafra1, Marlinda1, M Syukur1, D I Mazni2 1Civil Engineering Department, Faculty of Engineering, Universitas Andalas, Padang, Indonesia, 25163 2Civil Engineering Study Program, Universitas Dharma Andalas, Padang, Indonesia, 25127  [email protected] ABSTRACT There are many cities on the west coast of the Sumatra island, which are at high risk of the Tsunami disaster. Regional Regulations on Regional Spatial Planning for each Municipal/ Regency have compiled disaster mitigation by constructing several evacuation roads. Tsunami evacuation roads, which were initially with broader and well conditions. These roads become a favourite road by the people in their traffic activities and a fast-growing urban road. It seems from the increasing number of vehicles parked and stopped on both sides of the road. The rising number of houses and other commercial buildings also shown along the road. Quantitative and qualitative methods are used in analysing and assessing changes in community activities and land use on both sides of the tsunami evacuation road. The Indonesian Road Capacity Manual 1997 is used as a reference to evaluate the performance of the road. Activities on both sides of the road are increasing rapidly, are believed to make the evacuation road performance reduced. Reducing of tsunami evacuation road performance occurs very quickly, while the ability of the municipal government to provide tsunami evacuation roads is not as fast as the decline in road performance. Government efforts to control land use along the side of the evacuation road are urgently needed. Land used control along the tsunami evacuation road is believed to be part of an important step of road traffic management.

ICDM-1494 SEISMIC PERFORMANCE OF MEDIUM CABLE STAYED BRIDGE Masrilayanti1, Ruddy Kurniawan1, Ade Prayoga Nasution2, Riza Aryanti1

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1 Department of Civil Engineering, Universitas Andalas, 25163, Limau Manis, Indonesia 2 Department of Civil Engineering, Institut Teknologi Sumatera, 35365, Terusan Ryacudu, Indonesia  [email protected] ABSTRACT This study presents the convenient method to develop the fragility curves of the cable-stayed bridge. Performance of a bridge can be shown by the vulnerability of the structure in resisting a seismic motion and then developed into a fragility curves. For this purpose, the bridge needs to be analyzed using the seismic load in different intensities to ensure that the structure was experiencing damage in several conditions. The fragility curves were obtained by analyzing the structure using nonlinear time history (NTHA) and pushover analysis of the bridge model. The ground motions of the earthquake were subjected to the bridge in different intensities which were scaled from the initial ground motion. The ductilities of the structure were developed into the fragility curves as the responses of the bridge. Furthermore, the structure damage; slight, moderate, extensive, and complete due to the seismic load were then classified based on the HAZUS standard. Thus, the values of the damage states were generated to the fragility curves using the probabilistic values of the damage states. To ensure the goodness of fit data statistically, Kolmogorov-Smirnov test was conducted to the fragility function. The result revealed that the fragility curves was qualified as the lognormal distribution.

ICDM-1495 CAUSAL STRUCTURE FRAMEWORK OF MAN-MADE DISASTER IN CONSTRUCTION Akhmad Suraji Civil Engineering Department, Faculty of Engineering, Universitas Andalas, Padang, Indonesia, 25163  [email protected] ABSTRACT Construction accident is a man-made disaster. Causal factors of a construction accident could lie dormant at the project conception, design, and construction stage. Investigating the causal factors is, therefore,

2ND ICDM 2020 129 inadequate if directed only to operative errors, and the contractor’s management or organisation failures. A systematic investigation should also cover management or organisational failures initiated by the designer, the client’s team, and the client. This would lead to the need for a practical method of the accident investigation by which the operational errors, and management or organisational failures can be revealed comprehensively. This paper presents a constraint-response analysis of causation of construction accidents (CRACCA). It is a model illustrating a generic network of factors in construction accident causation. CRACCA proposes that construction accident causation consist of (1) accident events, (2) proximal factors, and (3) distal factors. The accident events represent accident occurrences and their consequences; the proximal factors represent deficiencies of the construction process; whilst the distal factors represent precursors generating the proximal factors. Both the proximal and distal factors are considered as factors stimulating the increased risk of construction accident. The distal factors are characterised as constraints applied to, and responses by, participants in the construction project. These constraints and responses constitute management actions taken by clients, the client’s team, the designers or the builders. In this way, the model will assist investigators to structure more readily the causal factors, and determine potential or predominant factors leading to construction accidents. In this paper, the constraint-response theory is briefly described. The generic structure of the causal network is presented. The default features of the model are introduced. The paper also illustrates procedures using CRACCA.

ICDM-1499 LAND USE ON NONCOHESIVE SLOPES Julita Andrini Repadi1 ,Fathol Bari1, Abdul Hakam2, Febrin Anas Ismail2, and Andriani2 1Doctoral Program, Dept. Of Civil Eng., Faculty Of Engineering, Andalas University, Indonesia. 2Lecturer, Dept. Of Civil Eng., Faculty Of Engineering, Andalas University, Indonesia.  [email protected] ABSTRACT

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This research is here to utilize land on noncohesive land, and utilize land more optimally. The study compared land that could be used using fellenius methods compared to experimental results. The method of calculating the safety factor fellenius is done by trial and error at 42 central points. Of the 42 central points sought the safety value of the most minimum or critical factor, obtained at point 13, while experimental methods were carried out by modeling the slopes using glass boxes. The area of land that can be utilized using experimental methods is wider than the area of land with experimental methods. Land on these noncohesive slopes is not in provision for settlements, expensive buildings, and important buildings.

ICDM-1500 IDENTIFICATION OF HYDROLOGICAL DISASTER (FLOOD AND LANDSLIDE) IN WEST SUMATRA USING CONTENT ANALYSIS METHOD Taufika Ophiyandri, Benny Hidayat, Aulia Jenica Civil Engineering Department, Faculty of Engineering, Universitas Andalas, Padang, Indonesia, 25163  [email protected] ABSTRACT West Sumatra is one of the provinces in Indonesia that frequently hit by floods and landslides. BNPB IRBI data shows that most districts and cities in West Sumatra have a high disaster risk index for floods and landslides. The purpose of this paper is to identify the causes, impacts and area distribution of floods and landslides in the districts and cities in West Sumatra. This study uses a content analysis method of news articles. The articles used consisted of 209 articles of flood events and 222 articles of landslides which were obtained from five online newspaper sites published from 2008-2018. The article was analysed using NVivo software. The results show that the three highest causes of flood in West Sumatra are heavy rainfall, overflowing river water, and overflowing of water from drainage channels. Meanwhile, the three highest causes of landslides are heavy rainfall, excavation of rocks and soil, and unstable soil conditions. The results also show the three highest impacts due to flooding are houses inundation, agricultural land damages, and blocking access roads. The three biggest impact of landslide are forcing road to be closed, buried community houses, and took casualties. The

2ND ICDM 2020 131 location that most frequently experienced floods and landslides is Agam Regency.

ICDM-1501 COMMUNITY SATISFACTION INDEX ON TSUNAMI SHELTER IN PADANG Taufika Ophiyandri, Daz Edwiza, Reyhan Ananda Firman Civil Engineering Department, Faculty of Engineering, Universitas Andalas, Padang, Indonesia, 25163  [email protected] ABSTRACT The construction of Temporary Evacuation Shelter (TES) is one of government efforts to reduce the tsunami disaster risk. The success of the TES development and maintenance program can be measured using the satisfaction of the community surrounding the area. This paper aims to identify TES problems after construction and to analyze the level of community satisfaction on TES in Padang City. Questionnaires survey and semi structure interview were conducted to reveal the community satisfaction index. The results show that the community satisfaction in TES development in Padang City was in the range of fairly satisfied to satisfied. The problems that arise after the construction are the absence of a management team from the government or the community concerned, the lack of maintenance, the absence of electricity, and the lack of water availability.

A A Kuntoro, 45, 67 A Sari, 54 A A Pramutri, 55 A Setiawan, 85 A B Utomo, 26 A U Fitrah, 61 A Boediarto, 58 A. A. Martha, 40 A Chrysanti, 67 A’isyah Salimah, 60 A Dinata, 50 Abd Halim Shamsuddin, 32 A Hadid, 62 Abdul Chalid, 46 A Hakam, 108, 117 Abdul Hakam, 48, 99, 105, 120 A N Fajri, 107 Abdulmalek Mohammed A Nugroho, 40, 61 Hussein Sofan, 65 A Rasadi, 108 Abubakar Sadiq Muhammed, 49

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Abubakr Taha Bakheit Taha, 69 Bambang Harianto, 84 Ade Prayoga Nasution, 115, 118 Bambang Istijono, 33, 99, 101, Adi Subiyanto, 93 105, 110 Aditia Nugraha Rusli, 51 Bayu Budi Irawan, 81 Admiral Musa Julius, 67, 93 Bayu Martanto Adji, 100, 101, Adrinal, 99 102, 105 Agung Bhakti Utama, 66 Benny Hidayat, 103, 120 Agusril Syamsir, 29, 30, 44, 65, Benny HIdayat, 101 73 Bintang Candra Jatmiko, 70 Aimuthia Citra Utami, 106 Bujang Rusman, 99 Akhmad Suraji, 97, 119 C Rahmawati, 27, 28, 55 Akmaluddin, 39 Celya Ayu Pradipta, 85 Ali Aldrees, 69 Chong Chun Siong, 49 Ali Najah Ahmed, 32 D Fiantis, 80, 82 Amirah Zakiyyah, 111 D I Mazni, 117 Andi Mulya Rusli, 51 D J Ilham, 80 Andriani, 48, 99, 105, 120 D J Wagg, 94 Andy Ikhvan, 29 D Meilani, 110 Angelalia Roza, 51 D Saputra, 67 Angga Arief Gumilang S, 37 Dalrino, 98 Anis Nur Afifah, 79 Daniel Blesson Silitonga, 98 Anwar Kurniadi, 89 Daniel Jesayanto Jaya, 74, 93 Aprianty, 95 Daryono, 67 Aprisal, 99 Daud Mohamad, 73 Aria Gusti, 45 Daz Edwiza, 121 Arief Budiarto, 55 Dede Oktria Syaferi, 103 Armada, 77 Deni Irda Mazni, 62 Asrini Chrysanti, 41, 63 Denny Helard, 36 Asthra Fashalli, 100 Deny WidI Anggoro, 92 Aulia Jenica, 120 Deswati, 70 Ayulia Fardila Sari ZA, 76 Devanantham Abijith, 33 B Dhanardono, 26 Dewi Apriliani, 90 B Hidayat, 108 Dhurgaashini Mohan, 32 B Minasny, 82 Dien Gusta Anggraini Nursal, 95 B Toknok, 62 Difana Meilani, 85 B. Sunardi, 40 Dina Subagia, 92 Bagus Prasetya, 46 Dio Prima Mulya, 47

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Dodi Devianto, 79 Geri Despita Putra, 105 Dr. Alyaa Alhamaidah, 34 Gumano H N, 53 Dr. Mazin A. Al-Mazini, 34 Gumilar M. sang, 96 Dr. Mustafa Shareef Zewair, 34 Gusnidar, 82 Dwi Intan Suci Rahmadani, 81 H I Martiastuti, 40 Dwi Marsiska Driptufany, 80 H Kanegae, 78 Dwi Putra Ardani, 42 H M Mustafa, 59 E Kurniati, 74 Hamim S A, 53 E Larosa, 27, 28, 55 Hamzah Latief, 64 E Pradjoko, 85 Hana Qurrota A’yun, 63 Edward Mendy, 52 Hans Dermawan, 68 Eka Juliafad, 57 Hartana, 85 Elsa Eka Putri, 104 Hasyim, Rohani, 72 Elsa Yani, 70 Hendri Gusti Putra, 105 Elvi Roza Syofyan, 110 Hendry Natanael Gumano, 88 Enma Sebayang, 68 Herda Yati Binti Katman, 32 Ernalem Bangun, 114 Hilfi Pardi, 70 F A Ismail, 117 Humairo Saidah, 84 F Dhiniati, 50 I B Giri Putra, 84 F I Ginting, 82 I Dewa Ketut Kerta Widana, 67 F I W Rohmat, 45 I R Moe, 45 Faisal Ananda, 77 I Wayan Muka, 87 Faisol Abdul Kharis, 55 Idah Andriyani, 42 Fajril, 40 Idham Riyando Moe, 66 Fajrin, 80 IDK Kerta Widana, 55, 90, 91, 93, Farid, 67 113, 114 Fathol Bari, 48, 120 Ika Kurnia Febrianti, 79 Fathoni Usman, 43, 88 Imam Maulana, 76 Fauzan, 106, 108 Indarto, 71 Febrin Anas Ismail, 48, 120 Ismael, 105 Feri Amsari, 34 Ismike Suci, 45 Fikri Jamil, 88 Isnan Fauzi, 64 Fritz Harland Sihombing, 57 Ivan Aliyatul Humam, 46 G Hayder, 59 Ivonne M Radjawane, 64 Galih Adya Taurano, 66 IW Sugiartha, 75 Gasim Hayder, 69 J Fajrin, 75 Gazi Paedullah, 39 J Juniarti, 80

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J Tanjung, 112, 117 M Farid, 45 Jafril Tanjung, 115 M Habib, 110 Jamil F, 53 M I Pratama, 45 Jati Sunaryati, 103 M L Oktarianto, 55 Jazaul Ikhsan, 109 M Nelson, 82 Jazmi Adlan Bohari, 91, 112 M Roychani, 78 Jennifer Hardi, 97 M Syukur, 117 Jesudasan Jacinth Jennifer, 33 M. Nurul Fajri, 34 Jihan Melasari, 65 Mafaza, 86 Jodin Makinda, 49 Mahdi, 61 Joseph Rei Mark Co, 35 Mahesa Pratama, 45 Julita Andrini Repadi, 48, 120 Mahmud Iwan Solihin, 59 K Fadhiela, 40 Maidiawati, 112 K S H Purnomo, 27, 28 Maizuar, 56 Kamariah, 74 Marlinda, 117 Kavindu Jayasinghe, 44 Marlon de Luna Era, 100 Kazuhiro Hayashi, 37 Mas Mera, 29, 36, 108 Khairiyah, 70 Masrilayanti, 60, 115, 118 Khairul Amri Sanusi, 43 Meli Muchlian, 48 Khairul Anuar Kassim, 49 Miftahul Huda, 87 Khairul Fahmi, 34 Miftahul Khairah, 116 Khairul Munadi, 52 Mipi Ananta Kusuma, 41 Khairunnisa Adri, 90 Mohamed Rehan Karim, 51 KP Sari, 78 Mohammad Bagus Adityawan, L E Diansari, 50 41, 63 L F Hidayatiningrum, 26 Mohammad Farid, 41, 63 L Nonita, 40 Mohammad Wawan Sujarwo, L Triana, 61 71 L Wardani, 85 Mohd. Hafizh Al Mukarram, 76 Laa Tania Fizikriy, 76 Muchtar Agus Tri Windarta, 93 Lalu Wirahman W, 72 Muhajirah, 97 Leli Honesti, 48 Muhamad Anshari, 102 Lilla Raswita, 76 Muhammad Anshari, 105 Liza Riani, 66 Muhammad Fadhlullah Abu M B Adityawan, 45 Bakar, 29, 30 M Bagus Budianto, 84 Muhammad Ghutsni Faisal, 109 M Eniarti, 75 Muhammad Ichsan Kabullah, 34

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Muhammad Luthfi Assidik, 46 R Salam, 55 Muhammad Rizal Romadhon, R Yuliet, 108 71 R. S. Yuliatmoko, 40 Muhammad Rusli, 37 Rafki Imani, 31 Muhd Zaimi Abd Majid, 48 Rahmadona, 60 Mutia Putri Monika, 97 Randy F Ritonga, 64 Muttaqa Uba Zango, 49 Rashid A Saeed, 59 N D Sims, 94 Refinel, 70 N I Rahmatika, 58 Rendy Thamrin, 111 Nanda, 44 Renita Astri, 47 Nelly Florida Riama, 40 Revalin Herdianto, 98, 110 Ni Nyoman Kencanawati, 39 Reyhan Ananda Firman, 121 Nidiasari, 103 Rezki Mulia, 83 Nila Anggreiny, 86 Ridho Aidil Fitrah, 62, 77, 81 Nisa Tri Noviani, 31 Rieke Rulvita Sari, 104 Nofriya, 45 Rika Ampuh Hadiguna, 85 Noorazizun Mohd Saad, 29, 30 Rima Marlitasari, 39 Nur Lyana Baharin, 29, 30 Rina Suryani Oktari, 76 Nur Syafiqah Mohd Shkuri, 29, Rita Nasmirayanti, 65 30 Riza Aryanti, 118 Nur'atiah Zaini, 29, 30 Rizki Robbi Rahman Alam, 41 Nurhasanah, 27 Robi Fernando, 66 Nursetiawan, 109 Rohayu Che Omar, 43 P D Saputra, 27, 28 Ruddy Kurniawan, 60, 106, 118 P Deastra, 94 Rudiyanto, 82 P Karuniakhalida, 28 Rudy Ferial, 97 Pathurahman, 75 Rustini, 83 Prima Fithri, 52 Ryo Majima, 37 Purnawan, 102, 107, 116 S C Noviadi, 38 Puti Sri Komala, 36 S Jumiyati, 62 Putri Nilam Sari, 45 S K Sakti, 58 Putri Tunjung Sari, 71 Sa’dianoor, 112 R Imani, 54 Sabril Haris, 103 R Irfanto, 26 Safni, 70 R M Iqbal, 40 Said Jalalul Akbar, 56 R Nurdin, 62 Salehudin, 72 R Patrisina, 110 Salsabila Ramadhani, 105

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Samsul Maarif, 90 T. Kurniawan, 40 Sati Hery Permana, 96 Taiki Saito, 37 Satriawan, 105 Tarmizi, 96 Sefrianita Kamal, 83 Taufika Ophiyandri, 99, 120, 121 Septi Mayang Sarry, 86 Taufika Ophyandri, 101 Septia Karlina, 76 Teguh Haria Aditia Putra, 99 Shaikh Muhammad Mubin, 65, Tivany Edwin, 36 73 Totoh Andayono, 57 Shilmi Arifah, 74 Tri Basuki Kurniawan, 43 Shuhairy Norhisham, 29, 30 U Anggarini, 80 Siswo Hadi Sumantri, 89, 113 U D Arman, 54 Sivaranjani S, 33 Usman F, 53 Slamet Widodo, 74, 93 Vanya Komara Putri, 63 Sobar Sutisna, 112 Vera Surtia Bachtiar, 36 Sri Siswati, 42 Vivi Anggraini, 44, 65 Sri Wahyuni, 100 Wan Azdi Wan Omar, 69 Subbarayan Saravanan, 33 Welly Pratiwi, 62 Sugeng Tri Utomo, 92 Wendi Boy, 31, 87 Sularno, 47 Widsri Palamba, 68 Sumi Amariena Hamim, 88 Widyaningtias, 41 Supriyanto Rohadi, 40 William Aditya Pramana, 63 Susan Pestariangin Halawa, 95 Yaumil Zahro Fadila, 42 Syafrawati, 76 Yolanda Safitri, 42 Syamsidik, 52, 83 Yosritzal, 100 Syamsul Hidayat, 84 Yossyafra, 117 Syamsul Maarif, 92, 112 Yuliandri, 34 T A Paramitha, 62 Yusuf Essam, 32 T Kurniati, 107 Zahratunnisa, 76 T M Rasyif, 83 Zahrotul Khumairoh, 113 T N A Kesuma, 67 Zaidir, 111 T Ophiyandri, 108 Zairah Nabilla Sidiq, 115 T R Maitsa, 67 Zakia Aliffiana Ulfa, 52 T Susilawati, 74 Zev Al Jauhari, 62, 77 T. Hardy, 40

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