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ZHOU Yang-fan, JIA Shun-ping, CHEN Shao-kuan, WEI Wei. Optimization model signal priority time threshold of tram[J]. Journal of Traffic and Transportation Engineering, 2016, 16(5): 151-158. doi: 10.19818/j.cnki.1671-1637.2016.05.017
Citation: ZHOU Yang-fan, JIA Shun-ping, CHEN Shao-kuan, WEI Wei. Optimization model signal priority time threshold of tram[J]. Journal of Traffic and Transportation Engineering, 2016, 16(5): 151-158. doi: 10.19818/j.cnki.1671-1637.2016.05.017
shu

Optimization model signal priority time threshold of tram

doi: 10.19818/j.cnki.1671-1637.2016.05.017
  • 1.

    MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing Jiaotong University, Beijing 100044, China

  • 2.

    School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, China

More Information
  • Author Bio:

    ZHOU Yang-fan(1989-), female, doctoralstudent, +86-10-51682264, 13114226@bjtu.edu.cn

    JIA Shun-ping(1963-), male, professor, PhD, +86-10-51682264, shpjia@bjtu.edu.cn

  • Received Date: 2016-05-01
  • Publish Date: 2016-10-25
    Abstract
  • Vehicle delay and intersection saturation were taken as constraint conditions, early green and extended green priority strategies were used, and the model of solving signal priority time threshold of tram was built.The influence of tram length was considered, and the model was verified through real case.Analysis result shows that the priority time thresholds under early green strategy are 0-13 s, and the priority time thresholds under extended green strategy are 5-11 s.When travelers are regarded as research units, different bus numbers under non-priority phase correspond to different overall benefit curves.When vehicles are regarded as research units, different bus numbers under non-priority phase correspond to only one overall benefit curve.The critical value of bus number under non-priority phase is 16 veh, the critical value of vehicle arrival rate under non-priority phase is 0.115pcu·s-1, and critical value of red time is 101 s.When they exceed critical values, it is not suitable to set signal priority for tram.The optimization model of signal priority time threshold of tram in this paper provides basis for giving signal priority of tram within reasonable range.

     

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