交通运输系统工程与信息 ›› 2010, Vol. 10 ›› Issue (1): 105-111 .

• 系统工程理论与方法 • 上一篇    下一篇

混合交通下信号交叉口排队长度计算模型研究

陈小红;钱大琳*;钮志强   

  1. 北京交通大学 城市交通复杂系统理论与技术教育部重点实验室,北京 100044
  • 收稿日期:2009-03-04 修回日期:2009-09-07 出版日期:2010-02-25 发布日期:2010-02-25
  • 通讯作者: 钱大琳
  • 作者简介:陈小红(1982-),女,湖南常德人,博士生
  • 基金资助:

    国家自然科学基金(70672023;70972041)

Calculating Model of Queuing Length at Signalized Intersections with Mixed Traffic

CHEN Xiao-hong;QIAN Da-lin; NIU Zhi-qiang   

  1. MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology,Beijing Jiaotong University,Beijing 100044,China
  • Received:2009-03-04 Revised:2009-09-07 Online:2010-02-25 Published:2010-02-25
  • Contact: QIAN Da-lin

摘要: 交通拥堵是当今世界的难题,而排队长度作为判断交叉口阻塞的标志,对其模型的研究具有重要意义. 针对我国混合交通的特性,结合交通冲突机理,首先考虑左转自行车对同向直行机动车的干扰,运用交通波动理论,提出了左转自行车对机动车干扰造成的排队长度计算公式. 在此基础上,研究红灯初期滞留车辆数的变化规律,提出了红灯初期滞留车辆数的动态计算公式,建立了适合于北京市实际交通状况的信号交叉口排队长度动态计算模型. 通过大量实验数据表明,该模型可行有效,在不同交通状态下均有较高的计算精度,为交叉口信号优化配时、缓解拥堵提供理论依据.

关键词: 智能交通, 排队长度模型, 信号交叉口, 自行车干扰, 滞留车辆

Abstract: Heavy traffic imposes a burden to the day-to-day operation of the world. It is rather important to develop a queuing length model which reflects the traffic condition at intersections. Based on the characteristics of mixed traffic in China, the paper proposes a formula to calculate the queuing length of vehicles conflicted by left-turn at the beginning of green light using traffic wave theory and traffic conflict theory. Then, with analysis on delaying vehicles at the beginning of red light, a dynamic calculation formula is presented. Finally, the queuing length model at intersection with mixed traffic is developed for Beijing city, and which is suitable for dynamic calculation. The feasibility of the model is illustrated by empirical studies. The results show high accuracy at different traffic conditions. The proposed model provides a theoretical basis to optimize signal timing and reduce traffic jam at intersections.

Key words: intelligient transportation, queuing length model, signalized intersection, bicycles disturbance, delayed vehicles

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