The load and real route determine the direction
In many factories and logistics areas, the load does not need to be lifted. It needs to move on wheels with less manual effort and more predictable control. The signal appears when people push too hard, wait for a forklift, need two operators for one movement or struggle to stop and steer the load on the real route.
A useful choice starts from the full load, wheels, floor, slope, distance, coupling, stopping points and movement frequency. The equipment family comes later, after the movement is clear.