Railcar movers are used in switching operations. Railcar movers are equipped with a set of both rail-wheels and road wheels. This allows the vehicle to travel along the rail lines as well as surface roads and through fields. A front and rear hydraulically operated coupler allows for separate push and pull operation. Working both couplers together the vehicle can push and pull railcars at the same time. All operating functions are controlled from within the operators cab much like an actual locomotive. Railcar movers utilize a process called weight transfer to assist them in moving the cars.