Journal of South China University of Technology (Natural Science Edition) ›› 2018, Vol. 46 ›› Issue (4): 35-43.doi: 10.3969/j.issn.1000-565X.2018.04.006

• Traffic & Transportation Engineering • Previous Articles     Next Articles

Signal Timing Optimization for the Intersection with Pre-Signals Based on Average Vehicle Delay
 

 LI Bo1 BIE Yiming1 CHENG Wei2    

  1.  1． School of Transportation Science and Engineering，Harbin Institute of Technology，Harbin 150090，Heilongjiang，China; 2． School of Transportation Engineering，Kunming University of Science and Technology，Kunming 650500，Yunnan，China
  • Received:2017-06-29 Revised:2017-08-08 Online:2018-04-25 Published:2018-03-01
  • Contact: 成卫( 1972) ，男，博士，教授，主要从事交通信息工程及控制研究 E-mail:chengwei_ding@163.com
  • About author:栗波( 1991-) ，男，博士研究生，主要从事交通信号控制研究
  • Supported by:
     Supported by the National Natural Science Foundation of China( 71771062，61304198) ， the Opening Foundation of the Intelligent Traffic Engineering Technology Ｒesearch Center of Yunnan Province Universities and the Postdoctoral Startup Foundation of Heilongjiang Province( LBH-Q15050) 

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Abstract: To relieve the oversaturation at intersections，the pre-signal intersection control method for motor vehicles was proposed． Owing to the given intersection design and phasing scheme，the calculation model of vehicle delays at the pre-signal and main signal were developed． With the minimum average vehicle delay at the intersection being regarded as the optimization objective，the signal timing parameters and the length of the waiting area were chosen as independent variables，and an optimization model for the timing plan at pre-signal intersection was proposed． The feasible direction method was used to solve the two models． Finally，a typical intersection was used as an example to test the proposed model． The results showed that compared with traditional control method，the presignal control method could reduce average vehicle delay as much as 60% under saturation or oversaturation conditions． 

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