Journal of South China University of Technology (Natural Science Edition) ›› 2017, Vol. 45 ›› Issue (6): 44-51.doi: 10.3969/j.issn.1000-565X.2017.06.008

• Traffic & Transportation Engineering • Previous Articles     Next Articles

Offset Optimization Model Between Intersections with Different Signal Cycles

YAN Xiao-wen1 XU Jian-min1,2 JING Bin-bin1   

  1. 1.School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,Guangdong,China; 2.Jiangsu Province Collaborative Innovation Center of Modern Urban Traffic Technologies,Southeast University,Nanjing 210096,Jiangsu,China
  • Received:2015-11-25 Revised:2017-03-01 Online:2017-06-25 Published:2017-05-02
  • Contact: 鄢小文(1990-)，女，博士生，主要从事智能交通系统、网络控制与优化、智能计算研究． E-mail:to_yanxiaowen@foxmail.com
  • About author:鄢小文(1990-)，女，博士生，主要从事智能交通系统、网络控制与优化、智能计算研究．
  • Supported by:

    Supported by the Science and Technology Planning Project of Guangdong Province，China(2015A030401024)

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Abstract:

In order to implement the coordination control between sub-regions with different signal cycles,the idea of coordination control between intersections with different signal cycles in a large period is proposed.Then,by ana- lyzing the traffic arrival law between intersections with different signal cycles,a delay model based on the traffic wave theory is established,and an offset optimization method based on the minimum delay is proposed.Finally,by taking two signalized intersections with different cycle lengths as the examples,a VISSIM simulation is performed to analyze the effect of coordination control in a comparative way.Simulated results show that,after the coordination control,the average vehicle delay and the average number of stops decrease by 13. 60% and 6. 43%,respectively,which means that the proposed method is effective.This research provides a novel idea as well as a method for the coordination control between sub-regions with different signal cycles.

Key words: traffic wave theory, delay model, macro-cycle coordination, offset optimization