可变信息板(VMS)通过发布实时的道路交通信息引导驾驶员的路径选择行为,是智能交通系统的重要组成部分之一,也是大城市缓解交通拥堵所采取的方法之一.为了定量分析VMS对驾驶员路径选择行为所产生的影响,本文采用SP调查法针对驾龄在1年以上的驾驶员进行问卷调查,使用SPSS20.0软件对调查数据进行分析,并在此基础上建立VMS诱导条件下驾驶员改变路径频率的有序多分类Logit模型,得出结论,驾驶员根据VMS所提供信息进行路径选择的主要影响因素为驾驶风格、出行时间、VMS可信度.
Variable message signs(VMS) frequently influence driver's route choice behavior through providing instantaneous traffic information.It is one of the most important components of intelligent transportation system(ITS),and an efficient method to release traffic congestion.To quantitatively analyze the effects of VMS on drivers' route choice,this study makes the SP survey on drivers that have more than one year driving experience.Then,the data are analyzed by SPSS20.0,and the ordinal classification Logit models are used to reflect the route choice behavior.Finally,the conclusion is presented: route choice behavior according to VMS is highly related to driving style,travel time and accuracy of VMS.