山东科学 ›› 2017, Vol. 30 ›› Issue (2): 78-84.doi: 10.3976/j.issn.1002-4026.2017.02.012

• 交通运输 • 上一篇    下一篇

基于改进F-B模型的过饱和状态下交叉口信号配时优化方法

高佳宁,丁勇*   

  1. 北京交通大学交通运输学院, 北京 100044
  • 收稿日期:2016-06-25 出版日期:2017-04-20 发布日期:2017-04-20
  • 通信作者: 丁勇(1974—),男,副教授,博士,研究方向为交通运输规划与管理。 E-mail:yding@bjtu.edu.cn
  • 作者简介:高佳宁(1992—),女,硕士,研究方向为交通运输规划与管理。E-mail:15120808@bjtu.edu.cn
  • 基金资助:

    国家自然科学基金重大项目(71390332);中央高校基本科研业务费专项资金(2015JBM129 )

Optimization method of the improved F-B model based signal timing at oversaturated intersections

GAO Jia-ning,DING Yong*   

  1. School of Traffic and Transportation , Beijing Jiaotong University ,Beijing 100044,China
  • Received:2016-06-25 Online:2017-04-20 Published:2017-04-20

摘要:

为减少过饱和交叉口的车辆延误时间,建立了改进的FB配时模型。该模型进行周期计算的步骤与FB法相同,在调查各进口道交通量时,提出 “通过交通量”的概念,并采用延误模型对FB算法以及改进FB法进行评价。案例分析结果表明,与FB配时模型相比,应用改进FB配时模型的信号配时方案使相邻交叉口延误时间分别减少了34.39%和28.05%。该模型能够有效缓解交通拥堵,减少车辆排队长度并提高交叉口服务水平。

关键词: 交通控制, 通过交通量, 信号配时, 延误

Abstract:

To reduce the vehicle delay time at oversaturated intersections, the improved F-B signal timing model was established. The procedures of cycle calculation in this model were the same as those in F-B method. The concept of “real traffic volume” was put forward when investigating the flow rate of each approach, and the delay model was used to evaluate the F-B method and the improved FB method. The case study indicated that, compared with the F-B signal timing model, the use of improved F-B model made the delay time of two neighboring intersections of Wenhua Road/Fushan Road and Wenhua Road/Hagongda Road decrease 34.39% and 28.05% respectively. The improved model can ease traffic jam effectively, and reduce vehicle queue length, and improve the intersection service level.

Key words: signal timing , real traffic volume, delay, traffic control

中图分类号: 

  • U491.5+4