A method and system include a vehicle system including a plurality of vehicles. The vehicle system is configured to travel along a route. A plurality of location determination devices are onboard the vehicle system. Each of the plurality of location determination devices is configured to output position data regarding a location of at least one of the plurality of vehicles. A handling unit is in communication with the plurality of location determination devices. The handling unit is configured to receive the position data from the plurality of location determination devices and control separation distances between the plurality of vehicles based on the position data.