| 城市交通流状态估计中探测车采样量的计算方法 |
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| 引用本文： | 高玲玲,李志鹏,陈宜开,刘允才.城市交通流状态估计中探测车采样量的计算方法[J].上海交通大学学报,2007,41(9):1416-1419,1424. |
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| 作者姓名： | 高玲玲 李志鹏 陈宜开 刘允才 |
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| 作者单位： | 上海交通大学,图像处理与模式识别研究所,上海,200240 |
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| 摘 要： | 讨论了用GPS探测车数据计算路网平均速度的可靠性.在综合考虑了车辆速度、道路类型以及GPS空、重车数据发送周期差异等因素的基础上,提出了一种新的探测车采样量的算法,用于计算城市交通流状态估计所需要的最小GPS探测车的数量.对上海市内环道路网进行了实地检验,结果证明了该算法是有效的.
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| 关 键 词： | 探测车 路段平均速度 采样频率 采样量 |
| 文章编号： | 1006-2467（2007）09-1416-04 |
| 修稿时间： | 2006-06-15 |
An Algorithm for Probe Vehicle Sampling Sizes for Traffic Flow Estimation |
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| GAO Ling-ling,LI Zhi-peng,CHEN Yi-kai,LIU Yun-cai.An Algorithm for Probe Vehicle Sampling Sizes for Traffic Flow Estimation[J].Journal of Shanghai Jiaotong University,2007,41(9):1416-1419,1424. |
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| Authors: | GAO Ling-ling LI Zhi-peng CHEN Yi-kai LIU Yun-cai |
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| Institution: | Inst. of Image Processing and Pattern Recognition, Shanghai Jiaotong Univ. , Shanghai 200240, China |
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| Abstract: | This paper discussed the reliability of computing the road link speed from probe vehicles.A new algorithm for the smallest probe vehicle sampling sizes for traffic flow estimation was proposed.Many factors are considered,such as road style,road link speed and information transmit period of probe vehicle.The field testing using traffic data of Xuhui district in Shanghai presents a good result which validates the effecfiveness of the new model. |
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| Keywords: | probe vehicle road link speed sampling frequency sampling sizes |
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