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Optimization of TIME-OF-DAY and Estimation on the Field Application for Arterial Road  

Lee, In-Gyu (서울시립대학교 교통공학과)
Lee, Ho-Sang (서울시립대학교 교통공학과)
Kim, Yeong-Chan (서울시립대학교 교통공학과)
Publication Information
Journal of Korean Society of Transportation / v.29, no.4, 2011 , pp. 113-123 More about this Journal
Abstract
Traffic signal control is one of the most cost-effective means of improving urban mobility. With the recent progress of ITS (Intelligent Transportation System) and the installation of the real time traffic control systems, traffic signal control is conducted in online and real time. Normally, time-of-day (TOD) signal control is used with the system, but no definite methodology has yet been available for efficient TOD signal planing designing. Such method and process are in need to optimize the traffic signal timing plan. This paper proposes the optimization of TOD signal timings on arterials. The effects of the signal timings from the proposed method were assessed in the field. The proposed includes the methods determining the separation of the TOD break points and the TOD intervals. Those were tested on an arterial consisting of ten coordinated signalized intersections. It was found from the test results that the proposed TOD signal timing plans outperformed the previous signal timings.
Keywords
Traffic Signal Control; TOD Time Plan; TOD Break Point; Signal Optimization; Field Evaluation;
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