| 浮动车数据中零速度点数据地图匹配方法 |
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| 引用本文： | 王东柱,董继明,李亚檬,宋向辉.浮动车数据中零速度点数据地图匹配方法[J].交通与计算机,2009,27(6):38-42. |
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| 作者姓名： | 王东柱 董继明 李亚檬 宋向辉 |
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| 作者单位： | 1. 国家智能交通系统工程技术研究中心智能交通技术交通行业重点实验室,北京,100088
2. 河南职业技术学院汽车工程系,郑州,450046 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项资金项目 |
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| 摘 要： | 浮动车数据中存在大量的由于车辆频繁停车引起瞬时速度为零的停车点记录,这些零速度点由于方向角不准确,常规的投影和几何地图匹配的算法不能有效地将其匹配到路段上。通过对浮动车辆停车原因进行分析,提出了1种基于浮动车停车点数据过滤筛选的地图匹配方法,可以将能够表示路段交通状态的交叉口车辆排队零速度点提取出来,匹配到路段上,同时过滤掉和交通状态无关的零速度点,从而增加了有效样本数量,为进一步对整个路网运行状态的全面评估提供数据支持。
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| 关 键 词： | 地图匹配 浮动车数据 停车点 GPS定位 方向角 交叉口 |
Map-matching Method Based on Zero-speed Points in Floating Car Data |
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| WANG Dongzhu,DONG Jiming,LI Yameng,SONG Xianghui.Map-matching Method Based on Zero-speed Points in Floating Car Data[J].Computer and Communications,2009,27(6):38-42. |
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| Authors: | WANG Dongzhu DONG Jiming LI Yameng SONG Xianghui |
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| Institution: | WANG Dongzhu DONG Jiming LI Yameng SONG Xianghui(National Intelligent Transport Systems Center of Engineering and Technology, Key Laboratory of Technology on Intelligent Transportation System,MOC,Beijing 100088,China)1(Department of Automobile Engineering,Henan Polytechnic Institute,Zhengzhou 450046,China)2 |
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| Abstract: | There are many 0 km/h speed stop points in the floating car data（FCD）.Since true courses are not reliable at the zero-speed points,the point-based map-matching algorithm,which uses true courses as key parameters,cannot be effectively applied.The conditions of the zero-speed points are analyzed,and a new map matching method is described.The zero-speed points of queuing with cross-road are extracted and the bad zero points are eliminated.Moreover,the no-zero speed points in same line are compared with zero-speed points calculated by the last step to verify the matching result. |
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| Keywords: | map matching floating car data parking point GPS bearing intersection |
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