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Mathematical Problems in Engineering
Volume 2015, Article ID 749748, 9 pages
http://dx.doi.org/10.1155/2015/749748
Research Article

Optimization Method of Intersection Signal Coordinated Control Based on Vehicle Actuated Model

Beijing Key Lab of Urban Traffic Control Technology, North China University of Technology, Beijing 100144, China

Received 22 July 2014; Revised 22 September 2014; Accepted 25 September 2014

Academic Editor: Wuhong Wang

Copyright © 2015 Chen Zhao-Meng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Traditional timing green wave control with predetermined cycle, split, and offset cannot adapt for dynamic real-time traffic flow. This paper proposes a coordinated control method for variable cycle time green wave bandwidth optimization integrated with traffic-actuated control. In the coordinated control, green split is optimized in real time by the measured presence of arriving and/or standing vehicles in each intersection and simultaneously green waves along arterials are guaranteed. Specifically, the dynamic bound of green wave is firstly determined, and then green early-start and green late-start algorithms are presented respectively to accommodate the fluctuations in vehicle arrival rates in each phase. Numerical examples show that the proposed method improves green time, expands green wave bandwidth, and reduces queuing.