| 基于路段覆盖率的浮动车样本数量研究 |
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| 引用本文： | 姚琛.基于路段覆盖率的浮动车样本数量研究[J].山东理工大学学报,2006,20(3):96-98. |
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| 作者姓名： | 姚琛 |
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| 作者单位： | 西南交通大学交通运输学院 成都610031 |
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| 摘 要： | 作为智能交通系统(ITS)的重要组成部分,浮动车技术得到了广泛的应用,而浮动车样本数量与路段覆盖率以及抽样时间段之间的关系又是在应用中必须解决的问题.通过对现有理论的研究,在考虑到GPS定位误差的情况下,推导出了3者之间的理论关系式,并与所获取的成渝高速成渝段的实际数据进行对比拟和,从而证实了理论公式的可行性.
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| 关 键 词： | 浮动车 最小样本数量 路段覆盖率 采样效率 |
| 文章编号： | 1672-6197(2006)03-0096-03 |
| 收稿时间： | 11 16 2005 12:00AM |
| 修稿时间： | 2005年11月16 |
Study on the density of floating car based on the route coverage |
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| YAO Chen.Study on the density of floating car based on the route coverage[J].Journal of Shandong University of Technology:Science and Technology,2006,20(3):96-98. |
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| Authors: | YAO Chen |
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| Institution: | College of Traffic and Transportation, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | As an important part of intelligent transportation system(ITS),the technology of floating car has been used widely.In practice,the relationship among the density of the floating cars,the line coverage and update cycle of sampling must be discussed theoretically.Under researching the exsisting theory and considering the location error of GPS,the relationship has been formulated.At the same time,the theoretical formula is validated by using the practical data from the ChengYu freeway. |
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| Keywords: | floating car minimum samples route coverage sampling efficiency |
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