Abstract
This study examines the driver assistance system which informs the passage possibility at a signalized intersection ahead. The assistance system informs a driver visually of the distance which the vehicle can forward by maintaining the present velocity until the red signal. If the indicated distance is shorter than the distance to the intersection from the vehicle, the system also indicates the stopping distance by assuming the ordinary deceleration. By examining the driver simulator experiments, the assistance system realizes the earlier deceleration before the amber signal and prevents the emergency braking behavior. In addition, the margin to pass through or stop at the intersection is examined by the evaluation indices concerning the intersection. The assistance system improves the safety margin at the intersection.
