交通运输系统工程与信息

交通运输系统工程与信息 ›› 2011, Vol. 11 ›› Issue (增1): 202-208.

• 城市交通优化实证研究 • 上一篇    下一篇

瓶颈路段交通改善实证研究

李妙君*1，孙全欣2，杨静3   

  1. 1. 北京交通大学 城市复杂系统理论与技术教育部重点实验室， 北京 100044；2. 北京交通大学 交通运输学院，北京 100044； 3. 北京建筑工程学院 土木与交通工程学院，北京 100044
  • 收稿日期:2010-05-02 修回日期:2010-07-01 出版日期:2011-12-28 发布日期:2011-07-18
  • 作者简介:李妙君(1987-)，女，山西人，硕士生
  • 基金资助:

    国家重点基础研究发展计划(2006CB705500)

Empirical Study for Improving the Traffic Conditions at Bottleneck Road Sections

LI Miao-jun1, SUN Quan-xin2, YANG Jing3   

  1. 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；3. Civil and Transportation Engineering，Beijing Institute of Architectural Engineering, Beijing 100044, China
  • Received:2010-05-02 Revised:2010-07-01 Online:2011-12-28 Published:2011-07-18

被引次数

4

摘要： 城市道路路网中，瓶颈路段的存在对路网通行能力有显著的影响. 本文归纳了瓶颈路段存在的两类常见问题：由于拆迁、开发遗留等造成的瓶颈路拥堵；以及铁路、桥等阻碍造成的瓶颈路拥堵. 对断头路、瓶颈路的改善措施进行了梳理. 结合姚家园路区域-朝阳公园桥案例展开了实证研究，研究表明，断头路的存在对路网的通达性有明显影响；合理调节支路的分流量，可以减轻路网节点的拥堵程度；打通断头路，路网的非直线系数提高，更加方便路网中节点的交流；畸形交叉口的改善，使路网的连接度提高17.5%.

关键词: 城市交通, 瓶颈路段, 断头路, 路网改善, 实证研究

Abstract: The road sections as bottlenecks of a road network decrease the traffic capacity of the road network significantly. The reasons for making bottleneck road sections are summarized in this study. They include the bad planning of the urban roads in the process of urban development and the influence from the railway lines and bridges in the urban areas. Based on the study of the Chaoyang Park Bridge around Yaojiayuan Road, it is proved that break road sections have a significant impact on the capacity of the road network and sharing part of the traffic volume on arterial roads to branch roads can release the congestion level at the nodes the road network. Smoothing break road sections can increase the value of the non-linear coefficient of the road network and make the connections between the nodes of the road network more easily. Moreover, improving the traffic conditions at intersections whose configurations are irregular can increase the accessibility of the road network by 17.5%.

Key words: urban traffic, bottleneck road section, discontinuous road, improvement of road network, empirical study

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