Patent ID: 7862177

Claim:
An image forming system for a host vehicle to alert another vehicle, traveling in an opposite lane in a direction opposite a direction of travel of the host vehicle, to a turn of the host vehicle at an intersection and across the opposite lane, the system comprising: an image forming unit that forms a mark with a predetermined shape on a road surface ahead of the host vehicle in the direction of travel of the host vehicle; a pedal operation sensor that detects position, relative to a pedal, of a foot of a driver of the host vehicle; a turn waiting detection unit that detects whether or not the host vehicle, stopped at the intersection, is in a turn waiting state; a turn start detection unit that detects, if the turn waiting detection unit has detected that the host vehicle is in the turn waiting state, whether or not the host vehicle has been changed from the turn waiting state to a turn start state based on a change in detected positions of the driver's foot; and a first image forming control unit that controls the image forming unit to form a turn start mark with the predetermined shape, indicating that the host vehicle is in the turn start state, on the road surface of the opposite lane and within the intersection to be entered by the host vehicle, if the turn start detection unit detects a change from the turn waiting state to the turn start state.