摘要
针对目前GPS浮动车采集交通信息的路段划分方法大多忽略交叉口不同行驶方向车流运行条件的差别,且假设路段不同位置的交通状态均衡,从而导致交通信息质量偏低,无法有效满足交通状态判别和车辆动态导航系统数据需求的问题,设计了能够区分车流不同行驶方向统计交通数据的方向路段划分方法与区分路段不同位置统计交通数据的子路段划分方法,以便从路网空间数据结构方面改善交通状态判别和车辆动态导航系统的信息基础。
According to the problem that different conditions of traffic flow of different turns around crossings are neglected and uniform traffic conditions on a link is supposed on link dividing methods for traffic information collecting based on GPS equipped floating car at present, which leads to traffic data with low quality and poor effect of the road traffic conditions identification system and vehicle dynamic navigation system. The directional link dividing method can be used to collect traffic data distinguishing different turns around crossings and sub-link dividing method can be used to collect traffic data distinguishing different places of a link are designed, which improves application effect of the road traffic conditions identification systems and vehicle dynamic navigation systems.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2010年第1期42-45,50,共5页
Geomatics and Information Science of Wuhan University
基金
国家863计划资助项目(2007AA12Z242
2007AA11Z245)
国家教育部高校博士点基金资助项目(20070183129)
关键词
交通信息采集
浮动车
GPS
路段划分
traffic information collection
floating car
GPS
link dividing
