信号交叉口行人自行车聚集群交通特性  

Traffic Characteristics Research of the Pedestrians and Bicycles Conglomeration at Signalized Intersection

作　　者：刘金广[1] 于泉[1] 荣建[1] 刘小明[1,2] 刘培华[1] 

机构地区：[1]北京工业大学交通工程北京市重点实验室,北京100124 [2]北京市交通委员会,北京100053

出　　处：《北京工业大学学报》2010年第2期229-234,共6页Journal of Beijing University of Technology

基　　金：'十一五'国家科技支撑计划重点资助项目(2006BAJ18B03);北京新城(怀柔)智能交通管理示范工程资助项目(Z07050601800701);北京市教委科技创新平台资助项目(102KB00776);北京工业大学博士研究生创新计划资助项目(bcx-2009-027)

摘　　要：为了便于研究城市交叉口混合交通信号控制策略以及城市信号交叉口交通仿真,对信号交叉口人行横道绿灯放行时间内行人自行车聚集群的交通特性进行了研究.在此基础上,提出了行人自行车'聚集群'的概念,运用了把人行横道'虚拟网格化'的方法对行人自行车聚集群的形状、面积、空间位置以及空间占有率等参数进行了描述.以北京市平乐园信号交叉口为例,对聚集群的空间占有率变化进行了计算.结果表明,聚集群的空间占有率在行进过程中是逐渐增加的.The research embodied in this paper presents the characteristics of pedestrians and bicycles conglomeration of the green time on the crosswalks, so as to study the signal control strategy and the traffic simulation of the signalized intersection. Firstly, a new definition of the pedestrians and bicycles conglomeration is presented under analyzing the releasing characteristic in the signalized intersection crosswalks of green time. Then, a new method is used which is that the crosswalk is divided for many uniform suppositional grids. Based on this new method of suppositional grids, the shape, the area, the position, as well as the occupation ratio of the space of the pedestrians and bicycles conglomeration is described. Finally, the signalized intersection of Beijing pingleyuan is taken for example, with the new method the occupation ratio of the space of the pedestrians and bicycles conglomeration is calculated. The result shows that the occupation ratio of the space of the conglomeration increases during the movement processes.

关 键 词：信号交叉口 混合交通 聚集群 交通特性 

分 类 号：U491[交通运输工程—交通运输规划与管理]