关键词: 交通运输工程, 可变信息标志, SP调查, Logistic模型, 路径选择行为

Abstract: According to the different traffic information contents provided by a text-type VMS board of a fast road in a typical road network, the drivers route choice behavior was investigated and studied, with the full consideration of the cognitive model of drivers. VMS message strategy experiments that included a single or multiple quantitative variables were designed and the traffic behavior data were collected through the stated preference (SP)survey. And then an orderly multi-classification Logistic regression model on the drivers route choice behavior was established. The results demonstrate that, even under the same traffic condition, the route choices made by the drivers are quite different when different types of information are provided; the information compliance rate that ranks from high to low is time saved by detour, detouring distance, traffic status and congested distance orderly. In addition, the accuracy, the completeness and the timeliness of the route traffic information released by VMS are the main factors that affect drivers route choice behavior. The above findings can provide a basis for formulating VMS information release strategy.

Key words: traffic and transportation engineering, variable message signs, state preference survey, Logistic regression model, route choice behavior