基于浮动车停车点数据交叉口车辆排队长度计算方法  

Algorithm of Vehicle Queue Length in Front of Intersection Based on Floating Car Data

作　　者：王东柱[1] 陈艳艳[2] 李亚檬[1] 

机构地区：[1]交通运输部公路科学研究院,北京100088 [2]北京工业大学北京市交通工程重点实验室,北京100124

出　　处：《公路交通科技》2012年第12期119-124,共6页Journal of Highway and Transportation Research and Development

基　　金：国家科技重大专项项目(2012ZX03005010);"十一五"国家科技支撑计划重大项目(2009BAG13A03)

摘　　要：浮动车数据中存在许多行驶速度为零的停车点数据记录,它们和交叉口车辆排队长度存在一定的空间关系。针对此提出一种新的基于浮动车停车点数据计算交叉口前车辆排队长度的方法。首先根据车辆停车点地理位置和正常行驶点的连续关系及和路段的相对位置进行地图匹配,提取出路段上交叉口前正常排队停车点数据;然后从正常排队停车点数据中计算出相对交叉口的浮动车数据相对位置关系,根据对浮动车停止点距离交叉口的位置密度分布变化进行2次统计计算,推算出交叉口前车辆排队长度。最后通过实际浮动车数据计算实例对本方法进行了说明和验证。There are many 0 km/h speed stop point records in the floating car data （ FCD）, which has some spatial relations with the vehicle queue length in front of intersection. A new method to compute vehicle queue length in front of intersection based on FCD of stop points was described. First, the data of normal queue stop point on road section in front of intersection were extracted by map matching according to the stop point＇s geographic location, continuous relation with normal travel points and relative location to the link. Then, the relative positional relation of floating car data in front of intersection was calculated based on the data of normal queue stop point. The vehicle queue length in front of intersection was calculated by two-steps statistics based on the position density distribution change of floating car stop point away from the intersection. At the end, a calculation example of using FCD was presented to explain and validate the algorithm.

关 键 词：智能运输系统 车辆排队长度 交叉口 浮动车数据 地图匹配 停车点 GPS定位 

分 类 号：U491.23[交通运输工程—交通运输规划与管理]