CROSSING COLLISION PREVENTION SUPPORT DEVICE

PROBLEM TO BE SOLVED: To appropriately control an information provision range according to the degree of congestion of a vehicle in a device for issuing a warning about crossing collision based on the fact that the other vehicle enters an information provision range in the periphery of a self-vehicle. SOLUTION: An crossing collision prevention support device is configured to acquire the index of the degree of congestion of a vehicle in the periphery of a self-vehicle 4, based on a radio wave received from another vehicle, and more narrows down an information provision range as the degree of congestion of a vehicle in the periphery of the vehicle 4 is higher, and more widens the information provision range as the degree of congestion is smaller, based on the acquired degree of congestion. COPYRIGHT: (C)2011,JPO&INPIT