A magnetic repulsion system to prevent collisions of vehicles by use of magnetic forces. The magnetic repulsion system to prevent collisions includes a plurality of mobile vehicles each having a body having an inner surface. Each of a plurality of bars is magnetized and has the same polarity. Each of the bars is coupled to the inner surface of one of the vehicles such that the bars substantially encompass each of the vehicles. The bars on a first of the vehicles are repelled by bars on a second of the vehicles by the magnetic polarity of the bars.