One of the prototypes is equipped with an infrastructure-based cooperative ITS (vehicle-to-infrastructure communications system), while the other is equipped with a self-reliant ITS (vehicle-to-vehicle communications system).
The vehicle used to test the infrastructure-based cooperative ITS is mounted with a "red light alarm," "head-on collision alarm" and "side collision alarm," as well as "infrastructure-based cooperative intelligent cruise control." These functions support safe driving through intersections by giving warnings to the driver or automatically stopping the vehicle.
The vehicle for testing the self-reliant ITS is loaded with the "All-Around Driving Support System," which includes a reverse-driving support system.
The red light alarm is activated when the vehicle is approaching an intersection with a red light without appropriately decelerating. And if the vehicle does not decelerate when it is approaching a red light, it will be automatically stopped behind the stop line by the infrastructure-based cooperative intelligent cruise control.
The head-on collision alarm makes the driver aware of a vehicle coming straight forward when he or she is trying to make a left turn while driving on the right side of the street.
The side collision alarm lets the driver know of the existence of vehicles approaching from the right or left when going from a road without right-of-way into an intersection without traffic signals.
