| 基于出租车跟踪的市区路网交通状态估计方法 |
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| 引用本文： | 史文欢,孔庆杰,刘允才.基于出租车跟踪的市区路网交通状态估计方法[J].交通与计算机,2009,27(5):29-32. |
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| 作者姓名： | 史文欢 孔庆杰 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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| 基金项目： | 国家“十一五”科技支撑计划项目(批准号:2006BAJ18B02)资助 |
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| 摘 要： | 为了获取市区路网的交通状态，提出了一种基于出租车跟踪的市区路网交通状态估计方法。该方法采用GPS定位设备获取出租车的行驶数据，然后结合数字地图数据对其中的位置数据进行修正，并采用A^＊启发式搜索算法对出租车进行跟踪，最终通过计算出租车跟踪路径在所覆盖路段上的置信参数来实现对市区路网交通状态的估计。基于上海市的出租车GPS调度数据和市区路网数字地图数据的应用实例验证了这一方法的可用性。
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| 关 键 词： | GPS 出租车跟踪 交通状态估计 |
A Taxi-Tracking-based Method for Traffic Status Estimation of Urban Road-Network |
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| SHI Wenhuan,KONG Qingjie,LIU Yuncai.A Taxi-Tracking-based Method for Traffic Status Estimation of Urban Road-Network[J].Computer and Communications,2009,27(5):29-32. |
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| Authors: | SHI Wenhuan KONG Qingjie LIU Yuncai |
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| Institution: | Lab of Pattern Analysis and Machines Intelligence;Shanghai Jiao Tong University;Shanghai 200240;China |
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| Abstract: | In order to acquire traffic status of urban road network,a taxi-tracking-based method is presented.As taxis travel on the urban road network,their traveling data are collected with GPS(Global Positioning System) devices,and then corrected by using the urban road network map data.Each taxi is tracked according to its amended traveling data by using the A* heuristic search algorithm and traffic status of urban road network is estimated based on the calculation of confidence intervals of traffic parameters for... |
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| Keywords: | GPS taxi tracking traffic status estimation |
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