Journal of System Simulation ›› 2018, Vol. 30 ›› Issue (3): 1036-1045.doi: 10.16182/j.issn1004731x.joss.201803034

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Optimal Control and Simulation of Hard Shoulder Running on Highways

Li Ruimin1,2, Ye Zhen1,2, Li Bin3   

  1. 1.Department of Civil Engineering, Tsinghua University, Beijing 100084, China;
    2.Chinese National Traffic Management Engineering Research Center, Beijing 100084, China;
    3.Key Laboratory of Technology on Intelligent Transportation Systems Research Institute of Highway, Beijing 100088, China
  • Received:2016-03-07 Online:2018-03-08 Published:2019-01-02

Abstract: This paper summarizes the problems in the operation of hard shoulder running (HSR). A new algorithm for optimizing HSR on highways is proposed, which aims to minimize the total time spent (TTS) in the whole network. Based on the METANET model of highways, the algorithm utilizes genetic algorithm and sliding windows technique to forecast and optimize the operation of HSR under different constraint conditions and target functions. The strategy is tested on the I-80E highway in California. The experimental results show that when the change frequency of HSR is less than or equal to 14 during a sliding window and the weight coefficient of the closure is 0.5, the TTS is reduced by 30.61%, which is better than TTS of all-time operation or during the volumes exceed a predetermined threshold.

Key words: active traffic management, hard shoulder running, METANET, optimal control

CLC Number: