| 基于大样本浮动车数据的武汉市车辆行驶速度获取与分析 |
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| 引用本文： | 李宇光,熊普选,乐阳.基于大样本浮动车数据的武汉市车辆行驶速度获取与分析[J].交通与计算机,2009,27(4). |
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| 作者姓名： | 李宇光 熊普选 乐阳 |
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| 作者单位： | 1. 武汉大学测绘遥感信息工程国家重点实验室,武汉,430079
2. 武汉市客运出租汽车管理处,武汉,430019 |
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| 基金项目： | 国家自然科学基金项目，"973"计划项目 |
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| 摘 要： | 采用基于浮动车行进方向与道路方向约束的道路匹配算法,将浮动车数据准确地匹配到城市道路上;在此基础上分析了大样本浮动车平均瞬时速度与路段平均行驶速度的关系,提出了用大样本浮动车的平均瞬时速度快速评估道路行驶速度.最后利用武汉市约1万辆出租车的GPS数据,对武汉市道路车辆行驶速度情况进行了计算和分析.
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| 关 键 词： | 浮动车 大样本 路段行驶速度 |
Vehicle Travel Speed Estimation from Large Volume Floating Car Data:A Case Study of Wuhan |
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| LI Yuguang,XIONG Puxuan,YUE Yang.Vehicle Travel Speed Estimation from Large Volume Floating Car Data:A Case Study of Wuhan[J].Computer and Communications,2009,27(4). |
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| Authors: | LI Yuguang XIONG Puxuan YUE Yang |
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| Institution: | State Key Laboratory of Information Engineering in Surveying;Mapping and Remote Sensing;Wuhan University;Wuhan 430079;China;Wuhan Taxi Management Office;Wuhan 430019;China |
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| Abstract: | A map-matching algorithm was applied to urban roads.Moreover,the relationship between spot speed and average speed was analyzed.Based on the characteristics of the experimental data which are collected by over 10,000 taxis from Wuhan,China,it has been proven that the average spot speed from large volume floating car can represent the average travel speed.Therefore,the computational cost in obtaining road network traffic condition from the floating car data can be significantly reduced. |
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| Keywords: | floating car large volume data road link travel speed |
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