摘要：AbstractFrom a statistical point of view, temporal pattern of traffic guidance information under abnormal traffic events is analyzed. Abnormal traffic events include traffic accidents, breakdown vehicles, traffic control, road maintenance and bad weather. In order to study the temporal influence sphere of abnormal events, time duration of Variable Message Signs (VMS) information is analyzed. All our work is based on huge amount of VMS information data in Beijing in the recent three years. The statistical results have practical value in developing time release strategy of traffic guidance information.
关键词：Sphere of temporal influence;Duration time;VMS guidance information;Statistical distribution
