关键词: 城市交通, 多源诱导信息, 价格敏感度, 路径变更, Logit模型

Abstract:

Multi-source guidance information such as traffic radio, variable message sign(VMS), car GPS and road signs are important basis for the driver to select the optimal path. In order to research the path change behavior mechanism in the multi-source guidance environment, using scenario analysis, taking Xi'an Xianyang International Airport and the West Second Ring Fang Xin district as OD, the main path and the alternative path have been designed. And the SP questionnaire is finally built by taking the toll sensitivity into the driver properties. The frequency of the driver changing from the main path to the alternative path within the OD in a multi-source environment is surveyed. Based on the survey data, the ordered Logit model for the driver path change behavior is constructed. It is found that the dependence of driver's decision to change the path in descending order are variable information signs, traffic radio, car GPS and road signs, reflecting the driver's demand on dynamic and timely information for the guidance process more strongly. Furthermore, in the multi- source guidance information environment, tolls price sensitivity and education level of driver also have significant impacts, while the influence of the driver's age is not significant.

Key words: urban traffic, multi-source guidance information, price sensitivity, path change, Logit model