VEHICLE COLLISION AVOIDANCE SYSTEM AND METHOD

A vehicle collision avoidance system and method. The vehicle collision avoidance system includes an input unit configured to receive driving information of a host vehicle and driving information of a rear vehicle, a memory configured to store a program that calculates a collision risk level using the driving information of the host vehicle and the driving information of the rear vehicle, and a processor configured to execute the program, wherein the processor performs control to display visual information about the risk of collision upon a right or left lane change based on the collision risk level.