基于路径的信号控制交叉口关联度计算模型.pdf

基于路径的信号控制交叉口关联度计算模型 马万经 李晓丹 杨晓光 （同济大学道路与交通工程教育部重点实验室，上海 201804 ） 摘要：本文首先分析了传统基于路段进行关联度计算模型的局限，在此基础上，建立了综合考虑交叉口信号相位、路径流量不均 匀性、交叉口间距和交叉口排队的路径关联度模型。针对2 个实际的信号控制交叉口，进行了关联度计算和协调控制关键路径判 断的算例分析；对比研究了本文模型与路段关联度模型的性能，分析了交叉口间距、排队、车道数和信号相位等对交叉口路径关 联度的影响。算例分析结果表明本文提出的路径关联度模型能更确切地描述交叉口间的关联性，并能够准确判定交叉口间协调控 制的关键路径。 关键词：城市道路交叉口；信号控制；路径；关联度 中图分类号：U 491 文献标示码：A 文章编号： Incidence Degree Model of Signalized Intersection Group Based on Routes MA Wanjing, LI Xiaodan, YANG Xiaoguang （Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China） Abstract: Incidence degree of adjacent intersections is the key parameter to analyze the traffic condition and design the coordination plan of intersections group. Firstly, the shortcomings of traditional link-based incidence degree model were analyzed. Secondly, a route-based incidence model was built. In the proposed route-based model, not only distance between intersections but also signal phases, route volume distribution and queue at approaches were considered. Finally, a case study, including two intersections is given. The performance of traditional link-based incidence model and proposed route-based incidence model were compared. The impacts of distance between intersections, queues, number of lanes and number of signal phases were analyzed. The results show that the proposed route-based incidence model has the ability to descript the real relationship of adjunct intersections and find the key route for signal coordination. Key words: intersections group; signal coordinated control; route; incidence degree 城市交通的拥挤使得分析交通流演变规律和最佳 交叉口协调控制的研究中，杭明升、林瑜等人对关联 利用有限道路交通资源日趋重要。交叉口间的关联度