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Valid Urban Travel Times: Elimination of outliers

来源:交通运输学院  返回:ca88     日期:2019/6/24 22:49:10   点击数:651  

时间:2019-06-28 16:00

地点:犀浦交运大楼417会议室

报告人:Henk van Zuylen

 

报告内容介绍:

Travel time and travel time reliability are important characteristics of journeys. They determine important decisions such as the choice of travel mode, route, and departure time. In urban areas there are often several alternatives for routes and travel modes, so that travel time information is important in the decision process. Furthermore, travel times and travel time reliability are important evaluation characteristics of urban traffic and they are also important for the control of traffic.

Measuring travel times in a network of urban roads can be done with probe vehicles (e.g. taxis or Didi cars), by following mobile phones and by Automated Number Plate Cameras. However, in the measurements of link travel time we find outliers, trips with a longer than normal travel time. There are some methods to eliminate such outliers, such as the Rapid Moving Window and the Wavelet method. The rapid moving window is based on the assumption that the travel time of a driver is close to the travel time of the vehicle in front and the one behind. Another method is the removal of exceptional travel times from a time series by reconstructing the travel time pattern as function of the arrival time by a wavelet analysis.

In the presentation the travel time reliability will be discussed, that wavelet method will be explained and some results will be presented.


报告人简介:

Henk van Zuylen是荷兰代尔夫特理工大学交通规划系首席教授,ca88、东南大学、同济大学、湖南大学客座教授,曾担任中荷智能交通培训中心主任(北京)和荷兰TRAIL研究院院长。承担了包括荷兰国家自然科学基金、国际合作等30余项重大项目。公开发表300多篇文章,其中SCI论文80余篇。中荷国家自然科学基金合作项目“运筹学在城市交通运输领域的应用”发起者之一。目前担任TRB “人工智能在关键交通运输问题中的应用”委员会成员, Transportation Science, Transportation Research Part A,B,C, IEEE transactions on ITS等顶级国际期刊审稿人。

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