交通运输系统工程与信息 ›› 2015, Vol. 15 ›› Issue (6): 161-169.

• 系统工程理论与方法 • 上一篇    下一篇

道路拥堵概率估计方法及其在城市交通运行评价中的应用

张彭*1,张晓松1,雷方舒1,朱广宇2,郭继孚1,全永燊1   

  1. 1. 北京交通发展研究中心, 北京100073;2. 北京交通大学, 北京100044
  • 收稿日期:2015-06-16 修回日期:2015-10-20 出版日期:2015-12-25 发布日期:2015-12-25
  • 作者简介:张彭(1976-),男,陕西西安人,高级工程师,博士.
  • 基金资助:

    国家自然科学基金(61572069);北京市交通委优秀专业技术人才项目(kj2013-2-34) ;城市交通运行仿真与决策支持北京市重点实验室资助项目(BZ0012).

A Method for Estimating Road Congestion Probability and Its Application in Urban Traffic Operation Evaluation

ZHANG Peng1, ZHANG Xiao-song1, LEI Fang-shu1, ZHU Guang-yu2,GUO Ji-fu1,Quan Yong-shen1   

  1. 1.Beijing Transportation Research Center, Beijing 100073, China; 2.Beijing Jiaotong University, Beijing 100044, China
  • Received:2015-06-16 Revised:2015-10-20 Online:2015-12-25 Published:2015-12-25

摘要:

首先提出能够统一描述不同交通负荷下路段内车流离散性进的出行时间指数 (TTI)概率分布模型,并建立该分布模型参数随路段速度变化的模型.进而给出一种新的 拥堵概率估计方法.其根据路段速度获得路段内车辆TTI 的概率分布参数,进而获得隐含 的车辆TTI 概率分布及路段处于不同拥堵状态的概率.应用于交通运行评价,解决了现有 方法评价结果受路段长度影响,以及微观评价波动性大的缺陷.给出的理论方法在交通运 行分析、仿真及控制领域具有广泛的应用前景.

关键词: 交通工程;交通运行评价;交通流离散性;动态模型, 拥堵概率;TTI概率分布

Abstract:

First, this paper proposes and validates that travel time index (TTI) of vehicles have a uniform probability distribution mode under different link speed. Then, it proposes a model which describes how the distribution parameters vary with link speed. On such basis, a novel method of estimating congestion probability for traffic operation evaluation is presented. Probability distribution parameters are obtained based on road speed, then different congestion probability could be got according to probability distribution. The proposed models and method are used to solve the insufficient problem of existing traffic operation evaluation methods of big cities in China. The result shows that the given method can address the impact of link length on evaluation result and significant volatility of microscopic evaluation entailed by the existing methods. The proposed theoretical models hold broad application prospects in the field of traffic performance analysis.

Key words: traffic engineering, traffic operation evaluation, traffic flow dispersion, dynamic model, congestion probability, TTI probability distribution

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