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

摘要：

交通广播、可变情报板、车载GPS和道路指示牌等诱导信息源是驾驶员路径选 择的重要依据.为系统研究多源诱导信息对驾驶员路径变更行为的影响机理，采用情景分 析法，以西安咸阳国际机场和西二环方欣商圈为OD，设置主路径和备择路径，引入通行 费敏感度构建SP 问卷，调查多源诱导信息情景下驾驶员由主路径向备择路径变更的频 率，在此基础上，构建路径变更行为的有序Logit 模型.结果发现，驾驶员路径变更对多源 诱导信息的依赖程度依次为可变情报板、交通广播、车载GPS和道路指示牌，反映了驾驶 员对动态、及时的诱导信息需求性更强；此外，在多源诱导信息作用下，通行费价格敏感 度、受教育程度对驾驶员的路径变更也有显著影响，而驾驶员年龄的影响作用不显著.

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