To enhance the effectiveness of dynamic information system and ensure its applicability as a new means to control the influence of non-recurrent event including traffic accident, it is necessary to investigate the software aspects of information system that include contents, timing, accuracy of information and so forth. The following research subjects are treated in this study. 1) The characteristics of both actual and potential users of information on traffic accident are investigated to discuss the future direction of the information system. 2) In order to analyse the relation between the way to provide drivers with information and driver's decision-making on route, driver's route choice behaviour is investigated and analysed by the stated preference survey method.
Abstract