Link travel time estimation with probe vehicles in signalised networks
Link travel time estimation with probe vehicles in signalised networks
复制标题
将行程时间估计与信号网络中的探测车辆连接起来
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
A. Dumont
中科院分区：
文献类型：
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作者：
A. Torday;A. Dumont
ATIS（高级旅客信息系统）和 ATMS（高级交通管理系统）应用程序使用的更有用的动态数据之一是链路行驶时间，特别是对于 DRGS（动态路线引导系统）情况。在收集这些数据的不同方法中，使用探测车辆是最有效和最有前途的方法之一。然而，首先从统计的角度来看，准确性问题必须得到解决。本文对典型城市网络路段的各个路段出行时间记录分布形状进行了分析。还描述了该分析对基于探测车辆的估计精度的影响。建议根据车辆使用的上下游链路将总体记录划分为子样本。评论了这种方法的优点和缺点。论证了将链路行程时间估计精度集成到路径上下文中而不是将其视为单独实体的必要性。最后，给出了一些结论并强调了进一步的研究需求。
One of the more useful dynamic data used by ATIS (Advanced Traveller Information Systems) and ATMS (Advanced Traffic Management Systems) applications is the link travel time, in particular for the DRGS (Dynamic Route Guidance Systems) case. Among the different methods for collecting these data, the use of probe vehicles is one of the most efficient and promising method. However, accuracy issues have to be solved, above all, from the statistical point of view. This paper presents an analyse of the individual link travel time records distribution shape of a typical urban network link. The influence of this analysis on the probe vehicles-based estimation accuracy is also described. A division of the overall records in sub-samples according to the upstream and downstream link used by the vehicles is proposed. Advantages and disadvantages of this approach are commented. The necessity of integrating the link travel time estimation accuracy in a path context instead of treating it as an individual entity is demonstrated. Finally, some conclusions are given and further research needs are highlighted.