交通运输系统工程与信息 ›› 2014, Vol. 14 ›› Issue (4): 53-58.

• 智能交通系统与信息技术 • 上一篇    下一篇

基于交叉口通行效率的两相位与四相位 控制方式临界流量研究

沈家军*1,王炜2   

  1. 1. 扬州大学建筑科学与工程学院,江苏扬州225009 ;2. 东南大学交通学院,南京210096
  • 收稿日期:2013-11-20 修回日期:2014-01-19 出版日期:2014-08-25 发布日期:2014-09-16
  • 作者简介:沈家军(1979-),男,江苏扬州人,副教授,博士.
  • 基金资助:

    国家自然科学基金(51208451);江苏省“青蓝工程”人才项目(2014);扬州大学“新世纪人才工程”项目(

Critical Volume Analysis of Two and Four Phase-Signalized Intersections Considering Efficiency

SHEN Jiajun1,WANG wei2   

  1. 1. College of civil science and engineering, Yangzhou University, Yangzhou 225009,Jiangsu,China; 2. School of transportation, Southeast University,Nanjing 210096, China
  • Received:2013-11-20 Revised:2014-01-19 Online:2014-08-25 Published:2014-09-16

摘要:

为了优化交叉口的通行效率,开展了信号交叉口不同相位控制方式之间的临 界流量研究.以周期流量、平均速度和行驶时间为参数,建立了两种控制方式下交叉口通 行效率模型.结合两相位和四相位交叉口的具体特性,解析了各参数之间的函数关系,将 交叉口通行效率模型简化为仅含流量的函数,从而求得了两种不同相位控制方式交叉口 在不同流量条件下的通行效率具体数值,通过比较最终确定了适合两种相位控制的临界 流量值.结果表明,该方法可以通过直行及左转车的小时流量来确定交叉口的控制方式, 从而为交叉口通行效率的优化,以及控制与管理方法提供决策支持.

关键词: 交通工程, 临界流量, 通行效率, 两相位, 四相位, 信号交叉口

Abstract:

To optimize efficiency of signalized intersections, this paper studies critical volumes for different signal phase. Cycle volume, average velocity, and travel time were selected as three parameters, and the efficiency models of intersections were developed. Considering the characteristics of two-phase and four-phase signalized intersections, the functions between parameters were analyzed, thus the efficiency models were simplified to equations only including the parameter of volume. The values of efficiency and critical volume were obtained for two-phase and four-phase signalized intersections. The conclusion indicates that the method can optimize the efficiency and provide theoretical basis for control and management of signalized intersections.

Key words: traffic engineering, critical volume, efficiency, two phases, four phases, signalized intersection.

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