A study on the traffic impact of the road corridors due to flyover construction at Surabaya intersection, Banda Aceh of Indonesia Sofyan M. Saleh, Sugiarto Sugiarto, Almira Hilal, and Dedek Ariansyah Citation: AIP Conference Proceedings 1903, 060005 (2017); doi: 10.1063/1.5011559 View online: https://doi.org/10.1063/1.5011559 View Table of Contents: http://aip.scitation.org/toc/apc/1903/1 Published by the American Institute of Physics Articles you may be interested in Effect of space structures against development of transport infrastructure in Banda Aceh by using the concept of transit oriented development AIP Conference Proceedings 1903, 060002 (2017); 10.1063/1.5011556 Factors affecting trip generation of motorcyclist for the purpose of non-mandatory activities AIP Conference Proceedings 1903, 060011 (2017); 10.1063/1.5011565 Readiness of freight transportation system at special economic zone of Lhokseumawe AIP Conference Proceedings 1903, 060012 (2017); 10.1063/1.5011566 Influence of dimension box differences and time differences during operations of red box for motorcycles at signalized intersection AIP Conference Proceedings 1903, 060006 (2017); 10.1063/1.5011560 A current review of high speed railways experiences in Asia and Europe AIP Conference Proceedings 1903, 060004 (2017); 10.1063/1.5011558 A stochastic discrete optimization model for designing container terminal facilities AIP Conference Proceedings 1903, 060007 (2017); 10.1063/1.5011561 A study on the Traffic Impact of the Road Corridors Due to Flyover Construction at Surabaya Intersection, Banda Aceh of Indonesia Sofyan M. Saleh b), Sugiarto Sugiarto a), Almira Hilal c), Dedek Ariansyah d) Department of Civil Engineering, Syiah Kuala University, Darussalam, Banda Aceh 23111, Indonesia . a)Corresponding author: [email protected] b)[email protected] c)[email protected] d)[email protected] Abstract. The urbanest areas are suffering from unmaintained externalities such as excessive travel time, unnecessary fuel consumption and even serious economic loss due extraordinary growth in automobile traffic (i.e. motorcycle and car), and as consequence of automobile ownership and usage have continued rapid growth into recent days including in Banda Aceh, a capital of Aceh Province. An increasing of automobile usage leads to induce traffic congestion in the city centers including in Surabaya intersection. To counter the negative effects of the congestion, the Government of Aceh (GoA) decided to build a flyover at the congested intersection mentioned above. However, during the construction period, traffic congestion is severe along this corridor, and traffic is randomly distributed to the road network in surrounding construction site without any traffic arrangement by the authority. It is, therefore, this research aims to analyze the traffic impact due to flyover’s construction. The study was conducted at three corridors which are considered as the most congested corridors due to exiting of bottleneck traffic. Those corridors are Teuku Muhammad Hasan Rd., Prof Ali Hasyimi Rd., Tgk. Imum Lueng Bata Rd. The findings from the analysis revealed that the traffic loading has increased accounting up to 34% and 37% for Teuku Muhammad Hasan Rd. and Prof. Ali Hasyimi Rd., respectively. Furthermore, the results of the level of service (LOS) analyses show that dropped in LOS from B to C during the construction period for Teuku Muhammad Hasan Rd. and Prof. Ali Hasyimi Rd. INTRODUCTION Car ownership and car usage have continued rapid growth into the current decade in Indonesia. Consequently, most urban areas are suffering from unmaintained externalities such as excessive travel times, air pollution, unnecessary energy consumption, and even serious economic loss due to the extraordinary traffic congestion [1]. Aforementioned phenomena also have evoked urban transportation problem in several big cities in Indonesia including Banda Aceh, a capital of Aceh province. Rapid development and an increasing of automobile usage lead to induce traffic congestion in big cities Indonesia such as Jakarta [2, 3]. Traffic congestion problem has been considered as the critical problem in the city centers in Banda Aceh mainly at Surabaya Intersection. To counter the negative effects of the congestion, the Government of Aceh (GoA) decided to build a flyover to reduce travel time due to unendurable delay in the intersection. The flyover itself connected two main national road which is the busiest as it is the central road to connect suburban area into city centers. The flyover segment has 850.9 meters length and 17.5 meters width. The objective of this construction is to save travel time and reduce vehicle operating cost, particularly during peak hour traffic. However, during the construction, traffic congestion severe due to high traffic demand pass through the intersection, and it is randomly distributed in surrounding corridors nearby construction site which is bottlenecks exist. It is, therefore, the purpose of this study is to analyze the traffic impact caused by the construction of flyover during the construction period. The traffic assessment used in this study is Indonesian Highway Capacity Manual [4]. This Proceedings of the 3rd International Conference on Construction and Building Engineering (ICONBUILD) 2017 AIP Conf. Proc. 1903, 060005-1–060005-7; https://doi.org/10.1063/1.5011559 Published by AIP Publishing. 978-0-7354-1591-1/$30.00 060005-1 traffic code sounds out of date, however, this code is used as a formal traffic manual in Indonesia till recent days. The traffic impact in this study is done by comparing the observation data during construction and the data before construction of Surabaya Intersection from the study done by [5]. Traffic congestion observed happened because of the narrowed road and partially lane closures as referred as so-called bottlenecks. Furthermore, the traffic impact in this paper only taking into account during morning and afternoon peak hours as these two peak hours is reflected as the critical traffic demand during weekdays. The remainder of this paper is organized as follows. The next section describes the existing references used related to this study. In the following section, the methodology and results are then offered. Finally, the discussions and conclusions of the study are presented at the end of the paper. LITERATURE REVIEW According to [6] about the Practice of Traffic Impact Analysis, the analysis of traffic impact is set of investigation activities on the impact of activity centers, residency, and infrastructure which the result is written in the document of the analysis result of traffic impact. With respect to infrastructure, it is mentioned in [6] article f (flyover) and g (underpass) must be conducted an assessment of traffic impact during construction (base year) and after construction (forecasting within at least five years after construction). The phenomena of Traffic Impact A construction of infrastructure will bring both positive and negative impacts on its surrounding including the impacts on traffic around the construction site. The phenomena traffic impact will generate quite significant of generating traffic volume such as office center, shopping center, bus terminal, etc. According to [11], generally speaking, traffic impact consists of two stages, that is: x Under construction stage At this stage, there will be an increase in traffic because of the material transportation and heavy equipment that load the roads in the material route, road diversion and narrowed road. x Post construction/while operating At this stage, there will be increase of traffic from the visitor, worker, and transport service that will load certain roads and there will be an increase of vehicles parking lot. Every activity room will generate and creates mobility that its intensity depends on the land’s function. The goal of analysis of traffic impact has four focuses, which are: 1. Evaluating and formulating traffic impact that is caused by new construction zone to the surrounding road system/external road system, especially roads that form the main system. 2. Synchronizing effort on the government policy with the provision of road infrastructure, especially plan to increase road infrastructure and junctions around the main construction is expected to lessen conflicts and traffic jams. 3. Providing solutions that can minimize traffic jams caused by the new road construction. 4. Arranging the recommendation of internal road system management, access points to and from built land, the necessity of parking lot facility and providing access as easy as possible to the land that will be constructed. The technical approach in analyzing the impacts. Traffic Characteristic The phenomena of traffic stream can be described and observed using macroscopic or microscopic parameters. At the microscopic level, the analysis is done by observing the behavior of driver individually while in macroscopic level, the analysis is assumed done in the group [7]. An early study by [8, 9, 10] used macroscopic parameter such as volume and speed to assess and explain traffic breakdown mechanism at an urban arterial road due to median opening and on- street parking activities. The result of assessment clearly demonstrated that traffic stream characteristics using macroscopic measures. Basically, macroscopic parameters such as traffic volume and speed can be determined as following descriptions. 060005-2 x Speed According to [12], speed is defined as a rate of movement