基于关键路口的动态交通子区划分

Research on the dynamic traffic zoning based on the key junctions

为了提高城市交通系统的控制效率,本文就路网子区的动态划分进行了研究。首先根据距离原则对路网中路口进行初划分,其次分析引入关键路口对子区划分以及路网控制效率的重要性,并给出静态以及动态两类关键路口的确定方法.最后在初划分的基础上,依据路口与关键路口之间周期相似度以及距离原则确定二者之间的关联度,根据关联度确定隶属关系,从而完成对路网的动态交通子区划分。

In order to improve the efficiency of traffic control system, the paper studies about the dynamic division of sub-zone in road network. First of all, this paper carries out early division according to the distance principle, and then, analyses the advantages of the introduction of key junctions to the traffic zoning and control of the road network. And this paper gives the method of identify the static and dynamic key junctions. Finally, on the basis of the early division, the degree of association between one junction and key intersection is determined by the similarity of cycles between these two junctions and the distance basis, using the affiliation that calculated to the associate degree of association between one junction and key intersection that determined by the similarity of cycles between these two junctions and the distance basis, thus completing the dynamic traffic zoning of the road network.