抄録
Driver's trust in ITS driver assist system is important in the development of the system. In particular the over-trust in the system may cause inadequate maneuver of the driver in an emergency situation. Driving simulator experiments that force subject drivers to become over-trust are conducted in this research to clarify the psychological structure of the driver's trust in a forward vehicle following system. Multiple regression analysis is applied to the experimental data so that the psychological factors strongly affecting the trust are found.