Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (31): 1-4.DOI: 10.3778/j.issn.1002-8331.2010.31.001

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Method of intersection-group dynamic division considering OD path in road network

HU Hua1,GAO Yun-feng2,YANG Xiao-guang3   

  1. 1.College of Urban Railway Transportation,Shanghai University of Engineering Science,Shanghai 201620,China
    2.School of Electronics and Information Engineering,Tongji University,Shanghai 201804,China
    2.School of Transportation Engineering,Tongji University,Shanghai 201804,China
  • Received:2010-07-15 Revised:2010-09-27 Online:2010-11-01 Published:2010-11-01
  • Contact: HU Hua


胡 华1,高云峰2,杨晓光3   

  1. 1.上海工程技术大学 城市轨道交通学院,上海 201620
    2.同济大学 电子与信息工程学院,上海 201804
    3.同济大学 交通运输工程学院,上海 201804
  • 通讯作者: 胡 华

Abstract: As the basic unit of traffic coordinated control in the urban road network,intersection-group is composed of some intersections with strong traffic relevance,and its scope is related to performance indexes of traffic coordinated control.Firstly,based on the improved Whitson model of link relevance,the model of path relevance of adjacent intersections is put forwards,which takes the origin-destination(OD) path distribution in the traffic network into consideration.Secondly,hierarchical clustering method is applied to intersection-group dynamic division based on calculated results from the model of link relevance or path relevance.Lastly,an example is given out to verify the method by simulation and division schemes are comparatively analyzed.The research results demonstrate that dynamic division of intersection- group considering the OD path distribution in road network could reduce the division times for main OD path,and thus decrease the total delay and stops in road network.

Key words: intersection-group, dynamic division, OD path in road network, path relevance, link relevance

摘要: 交叉口群是关联性较强的若干交叉口的集合,是路网交通流协调控制的基本单元,其动态范围划分与路网协调控制效益直接相关。在对经典Whitson路段关联性模型进行改进的基础上,考虑路网上交通流OD路径分布建立了相邻交叉口之间的路径关联性模型;基于路段或路径关联性模型计算结果,应用层次聚类方法对信号控制交叉口群进行动态划分。最后对基于路段和路径关联性的交叉口群动态划分方法进行了仿真验证和对比分析。研究结果表明,考虑路网OD路径分布动态划分交叉口群可以减少对主要OD路径的分割,从而降低路网交通流的总停车延误和停车次数。

关键词: 交叉口群, 动态划分, 路网OD路径, 路径关联性, 路段关联性

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