Abstract
Recently, implementation of new vehicle information and communication system (VICS) is being proposed. By implementing the new VICS, a driver can receives disaster information according to the location of the car by car navigation system. In this research, the effect of disseminating flood information by the new VICS was estimated using person trip survey data and flood hazard map data. At first, a model for disaster information reach ratio was developed based on a questionnaire survey for drivers during the past torrential rain. Next, disaster information reach ratio among drivers in the expected inundation area of flood hazard map with implementation of the new VICS was estimated in the Sagamigawa and Kanamegawa river basin in Kanagawa Prefecture in Japan using the developed model and person trip survey data in the area. As a result, it was confirmed that the implementation of the new VICS in the future could enhance the information reach ratio among drivers.