Abstract
Changes of driver behavior by the safety driving support system with road-to-vehicle communication, which is aimed at rear-end collision prevention in poor visibility, was evaluated on a public road. From a viewpoint of safety, “normative behavior” which the system certainly requires to a driver was defined as “deceleration behavior in a poor visibility section”, and this behavior was compared between with-system and without-system conditions. As a result, behavioral changes of gas pedal release or speed decrease were observed in a part of participants. By analysis of driver’s individual characteristics of driving style and risk-taking tendency, and differences of user acceptance, the result of behavioral changes could be interpreted as being due to driver’s situation awareness for the risk of “invisible objects”.
Keywords: Driver behavior, Driver characteristic, Field operational test