运用小世界理论的过街设施网络布局优化  

Network layout optimization of pedestrain crossing facilities based on small world theory

作　　者：乔建刚 张馨 陈春燕 刘轲 QIAO Jiangang;ZHANG Xin;CHEN Chunyan;LIU Ke(College of Civil and Transportation Engineering,Hebei University of Technology,Tianjin 300401,China;Shanxi Traffic Holding Group Co.Ltd.,Taiyuan,Shanxi 030000,China)

机构地区：[1]河北工业大学土木与交通学院,天津300401 [2]山西交通控股集团有限公司,山西太原030000

出　　处：《福州大学学报（自然科学版）》2020年第3期382-387,共6页Journal of Fuzhou University(Natural Science Edition)

基　　金：国家安全生产监督总局科技项目资助(hebei-0009-2017AQ);天津市科技计划项目重点研发计划(18YFZCSF00720);国家重点研发计划重点专项资助(2017YFC0805404)。

摘　　要：针对过街设施利用率低、行人横穿马路等问题,对过街设施的布局进行调整.以北京市二环行人过街设施路网为例构建网络拓扑结构,验证小世界网络的适用性,并基于小世界网络理论对过街设施间距较大的宣武门东大街、崇文门西大街、西长安街三个路段进行优化.结果显示,平均最短路径长度为2702.916 m,比优化前减少254.8422 m,聚类系数为0.7939,优化后过街设施的合理间距为289 m.In view of the low utilization rate of crossing facilities and pedestrian crossing the road,it is necessary to adjust the layout of crossing facilities.Taking Beijing Second Ring Pedestrian Crossing Facilities Network as an example to construct network topology structure and verify the applicability of small world network.Secondly,optimizing the three sections of Xuanwumen East Street,Chongwenmen West Street and West Chang’an Street with large spacing of crossing facilities based on the small world network theory.The result shows that the average shortest path length is 2702.916 m,which is 254.8422 m less than that before optimization,and the clustering coefficient is 0.7939.The reasonable distance between optimized crossing facilities is 289 m.

关 键 词：交通规划 过街设施 网络布局优化 小世界理论 

分 类 号：U491[交通运输工程—交通运输规划与管理]