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Date of Publication:2015-01-01

Journal:交通运输系统工程与信息

Issue:3

Page Number:100-106,139

ISSN No.:1009-6744

Abstract:A system partition model for urban arterials is proposed based on classical MAXBAND model. The model divides the whole arterial into several subsystems, each with three to six signalized intersections. Each subsystem is optimized individually to achieve maximum two-way bandwidth. The through traffic in different subsystems is provided average green bandwidth as equal as possible. Genetic Algorithm is applied to solve the model, the optimal results implies that intersections with critical cycle length or large spacing is the partitioning point. Compared to the plan generated by Synchro, the one produced by the proposed model increases the average progression efficiency by 27.8%. CORSIM simulation is conducted to compare the performance of signal timing plans generated by the proposed model and Synchro respectively, and results analysis indicates that compared to the plan generated by latter one, the one produces by former one resulted in better performance indexes, such as average delay, average speed and stops.

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