Railcar movers are primarily used in switching operations. It is generally used within a plant area, these are also well suited for other types of industrial railcar-moving applications. These vehicles are equipped with a set of both railwheels and roadwheels. This allows the vehicle to travel along the rail lines as well as surface roads and through fields. A front and rear hydraulically operated couplier allows for separate push and pull operation. Working both coupliers together the vehicle can push and pull railcars at the same time. All operating functions are controlled from within the operator's cab much like an actual locomotive. Railcar movers utilize a process called weight transfer to assist them in moving the cars. By borrowing weight from the railcar itself added traction is shifted to the vehicle, pushing it firmly down upon the rail line.