By coupling traffic lights and electric wheel chocks, loading/unloading operations can be made safe in an economic manner.
Bay gate and/or an adaptable ramp can be networked with the wheel chock and the traffic lights.
By means of corresponding colours (red/green), the traffic lights in the building or outside on the dock provide information about when loading/unloading operations can start or when the truck driver can remove the chocks safely.
The system is independent of possible access connections between truck and dock, i.e. regardless of whether an adaptable ramp, dock board, or some other device is used, operator safety is ensured.