Abstract: A left-turn driving support system for supporting a driver of a vehicle waiting to make a left turn at an intersection where vehicles travel on the right side of a road. The system includes a light-reflecting material which reflects light from blinking signals of a turn signal of a second oncoming vehicle following a forefront oncoming vehicle, which are about to enter the intersection. The light-reflecting material is installed continuously along the centerline of the road and is sufficient long to detect a left-turn signal of the second oncoming vehicle.

Abstract: A left-turn driving support device at an intersection is characterized in that a luminescent material emitting light upon sensing blinking of the turn signal of a second oncoming vehicle following a forefront oncoming vehicle arriving at the intersection, is installed in a position from which the driver of a vehicle waiting to make a left turn is able to visually check the luminescent material.