A Basic Analysis of Drivers' Route Choice and Information Acquisition Behavior Based on Stated Preference Data Collected through Intranet Survey

A computer network-based survey was proposed as a method of collecting travel behavior data ondriver's information service utilization and route choice when traffic information is provided, and itseffectiveness was verified. We found that the survey method using the intranet is superior to the conventional questionnaire ones, because its survey time was shorter and the reality of the experimental situation was greatly improved. Furthermore, we analyzed the relation between information utilization behavior and variables consisting of driver's awareness level of congestion and characteristics of information services. As results, we found that the reduction in vehicle speed is likely to increase driver's access to the information services.