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Volume 5.F Road Safety Inspection Report

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Volume 5.F Road Safety Inspection Report LAO PEOPLE’S DEMOCRATIC REPUBLIC PEACE INDEPENDENCE DEMOCRACY UNITY PROSPERITY MINISTRY OF PUBLIC WORKS AND TRANSPORT DEPARTMENT OF ROADS Lao Road Sector Project2 (LRSP2) Consulting Services for Conceptual Engineering Design of Improvement & Maintenance of NR 13 South from KM 71 to KM 346 VOLUME 5.F Conceptual Design Report ROAD SAFETY INSPECTION REPORT KM 71+000 – KM 346+000 (Draft) CONSULTANT: ìñ©-¸ò-¦¾-¹½¡ò© ¸ò-¦½¸½-¡¿ £ö´´½−¾£ö´ LAO TRANSPORT ENGINEERING CONSULTANT Souan Mone KM 5, Thadeua Road, Vientiane, Lao PDR Tel.: (+856 21) 313510, 313761, 312840; Fax: 314811 e-mail: [email protected]. Homepage: www.ltec.com.la March, 2020 LTEC CODE: SD-283-19 Consulting Services for Conceptual Engineering Design of Road Safety Inspection Report Improvement & Maintenance of NR13 South from KM 71 to KM 346 List of Package Number Package No. From KM to KM Length (KM) In the Area of Province 1 KM 71.30 to KM 111 39.70 Bolikhamxay 2 KM 111 to KM 190 79 Bolikhamxay Bolikhamxay and 3 KM 190 to KM 268 78 Khammouan 4 KM 268 to KM 346 78 Khammouan Lao Transport Engineering Consultant i Consulting Services for Conceptual Engineering Design of Road Safety Inspection Report Improvement & Maintenance of NR13 South from KM 71 to KM 346 List of Documents Request for Bid Volume 1 Part 1 : Bidding Procedures Section I : Instruction to Bidders (ITB) Section II : Bid Data Sheet (BDS) Section III : Evaluation and Qualification Criteria (Without Prequalification) Section IV : Bidding Forms Section V : Eligible Countries Section VI : Fraud and Corruption Volume 2 Part 2 : Works and Services’ Requirements Section VII : Specifications Volume 3 Part 3 : Conditions of Contract and Contract Forms Section VIII : General Conditions Section IX : Particular Conditions of Contract Section X : Contract Forms Volume 4 Part 4 : Conceptual Design Section XI-A : Standard Technical Specifications Section XI-B : Particular Technical Specifications Section XII : Drawings Section XIII : Bill of Quantities Project Reports Volume 5 : Conceptual Design Report (Main Report) Support Data in Separate Volumes Annex A : Bridge Design Report Annex B : Hydrology Report Annex C : Bridge Maintenance Guides Annex D : Survey Report Annex E : Geotechnical Survey Data and Pavement Condition Survey Data Annex F : Road Safety Inspection Report Annex G : Traffic Survey Data Annex H : Road Surface Roughness Survey (IRI) Data Volume 6 Volume 6.A : Environment and Social Management Plan (ESMP) Volume 6.B : Resettlement Action Plan (RAP) Lao Transport Engineering Consultant ii Consulting Services for Conceptual Engineering Design of Road Safety Inspection Report Improvement & Maintenance of NR13 South from KM 71 to KM 346 CONTENTS EXECUTIVE SUMMARY ...................................................................................................... 1 1. The Project Background ................................................................................................. 2 1.1 Introduction ............................................................................................................. 2 1.2 Existing Road Condition ......................................................................................... 3 1.2.1 Safety and Alignment Improvements ............................................................. 3 1.2.2 Nation Road 13 South Improvement and Maintenance .................................. 4 1.2.3 Environment of Road Side ........................................................................... 11 2. Traffic Accidents Statistics ............................................................................................ 22 3. Road Accidents black spots and Suggest Remedial Measures .................................. 29 3.1 Road accidents black spots .................................................................................... 29 3.2 Suggest remedial measures .................................................................................... 31 4. Road Safety in Specification ......................................................................................... 39 4.1 Introduction ........................................................................................................... 39 4.2 Improvement Methods at Hazardous Location ..................................................... 39 4.2.1 International Passive Methods ...................................................................... 39 4.2.2 International Active Methods ....................................................................... 41 4.2.3 International Traffic Calming Measure ........................................................ 44 5. Road Safety Strategy on the Project Road ................................................................. 45 5.1 Introduction ........................................................................................................... 45 5.2 Basic Strategy for Road Condition Improvement ................................................. 45 5.3 Detailed Strategy for Hazardous Section ............................................................... 46 5.3.1 Strategic Direction .................................................................................... 46 5.3.2 Village Passing Sections ........................................................................... 47 5.3.3 The General Section ................................................................................. 48 6. Road Safety in Design ........................................................................................................ 50 6.1 Establishment of Standard ..................................................................................... 50 6.1.1 Signs ......................................................................................................... 50 7.1.2 Barrier ....................................................................................................... 54 6.1.3 Delineator ................................................................................................. 56 6.2 NR 13 South in Design .......................................................................................... 60 6.3 Design and Location for Road Traffic Control ...................................................... 60 7. Conclusions and Recommendations ............................................................................ 61 Lao Transport Engineering Consultant iii Consulting Services for Conceptual Engineering Design of Road Safety Inspection Report Improvement & Maintenance of NR13 South from KM 71 to KM 346 TABLES Table 1: Road Section NR 13 South ........................................................................................... 3 Table 2: Road Characteristics ..................................................................................................... 3 Table 3: Existing Traffic Signs and Road Marking .................................................................. 12 Table 4: Villages and Schools along the NR 13 South ............................................................ 12 Table 5: Existing Roadside Facilities ....................................................................................... 12 Table 6: Summary of Proposed Improvements on NR13 South .............................................. 13 Table 7: Accident Data Vehicles .............................................................................................. 2 2 Table 8: Traffic Accident Injuries and Death ........................................................................... 26 Table 9: Road Safety Recommendations ................................................................................. 32 Table 10: Strategy for Road Improvement ............................................................................... 45 Table 11: Descriptions by Sign Shape ...................................................................................... 50 Table 12: Distance for the Installation of Road Sign ............................................................... 52 Table 13: Barrier’s Features by Types ..................................................................................... 55 Table 14: Distance for Installation Delineator (unit: m) .......................................................... 59 Table 15: Summary of Design Traffic Signs on Project Road ................................................. 61 PICTURES Picture 1 : Start of NR 13 South Project at Km 71 ..................................................................... 4 Picture 2 : Lack of Signs on Curves ........................................................................................... 4 Picture 3 : Narrow Road in a Village Area without Warning or Speed Limit Signs.................. 5 Picture 4 : Sporadic Old Signs .................................................................................................... 6 Picture 5 : Market close to Road ................................................................................................ 7 Picture 6 : Broken Guide post at Curve ...................................................................................... 7 Picture 7 : Lack of Direction Signs and Warning Signs at Junction .......................................... 8 Picture 8 : Lack of Traffic Calming Measure at Village and School Area ................................ 8 Picture 9 : Existing Junction at Km 85+000, Km 309+700 will be Improved ........................... 9 Picture 10 : Broken Guardrail at Existing Bridge and Curve ..................................................
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