利用浮动车回传数据的信号交叉口延误估计.pdf

2010 3rd International Conference on Power Electronics and Intelligent Transportation System An Approach of Intersection Delay Estimate Based on Floating Vehicles Ling Sun1 and Jing Li2 1) National ITS Research Center, Research Institute of Highway, Ministry of Transport, Beijing, China (nsy@) 2) National ITS Research Center, Research Institute of Highway, Ministry of Transport, Beijing, China (hao.liu@) Abstract—The research described in this paper is concerned with estimating link time delay of urban signalized intersection from traffic data that collected by existing floating vehicles in city. The propose of the paper is to get rid of the tradition method, and proposed a new method to estimated delay using the floating vehicle data. The delay process at signalized intersection is mainly analyzed, the range and the Expedite travel speed of the signalized intersection is defined. The paper proposes a solution to estimate intersection delay by a road traffic information and traffic detective data from GPS equipped floating vehicle based on spatial data analyse. At last, the paper validates the method based on the real data. The results indicate that the calculate accuracy of the method is not difference due to the road grade which based on the map matched; a 3 seconds interval of the floating car is satisfied the requirements of the delay estimate. Keywords—delay estimate；data of floating vehicles；the range of signalized intersections；expedite travel speed 利用浮动车回传数据的信号交叉口延误估计 孙玲 1，李静 2 1) 交通运输部公路科学研究院,国家智能交通系统工程技术研究中心，北京，中国 2) 交通运输部公路科学研究院,国家智能交通系统工程技术研究中心，北京，中国 摘 要 针对目前城市中现有的 GPS 浮动车研究城市信号交叉口的延误估计，目的在于摆脱传统计算方法，提出一套利用浮动车 检测数据估计信号交叉口延误的新方法。