Open AccessTesting circular weaving (roundabout) to improve traffic performance and level of service of the unsignalized intersection
Author(s) -
Faisal Amir,
Sofyan M. Saleh,
Sugiarto Sugiarto
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1087/1/012012
Subject(s) - roundabout , intersection (aeronautics) , vissim , transport engineering , level of service , christian ministry , weaving , highway capacity manual , service (business) , ministry of transport , computer science , engineering , business , mechanical engineering , philosophy , theology , marketing
Unsignalized intersection is the most operated traffic facility in Indonesia including several small-medium cities like Bireuen. The unsignalized intersection is mainly characterized by the complex maneuver mechanism by road users. The RSU Fauziah intersection is one of the most crowded intersections within the city center. This unsignalized intersection seems does not fit with current traffic demand. Indiscipline driver’s movement and the rejection gap by the driver leads to deteriorating the capacity and level of service (LOS) of the intersection. Therefore, this work proposes to investigate the deterioration of capacity and level of service of targeted unsignalized intersection considering current traffic facility (unsignalized) and tested roundabout type traffic operation. The study was conducted at RSU Fauziah unsignalized intersection which located at the city center of Bireuen, Aceh Province, Indonesia. Using peak hour traffic data recorded using a video camera, the capacity was evaluated using the Indonesian Highway Capacity Manual (IHCM, 1997) for the existing traffic performance and simulating using VISSIM for trial implementation of roundabout. While the level of services (LOS) was examined using the Ministry of Transportation Decree (2006). The result of analysis demonstrates that the capacity of unsignalized slightly increases by 24.5% while the delay and level of service are significantly reduced to 39.2%, and improved from E to C, for delay and LOS, respectively. It can be concluded that the improvement of the existing condition by implemented a roundabout could improve the capacity and LOS of an existing unsignalized intersection.