Third-party drivers arriving  report to security and receive documentation on the Salvo system. They then reverse into a loading bay, before disengaging their engine and fitting a Salvo Susie or SGL lock to the vehicle’s exposed emergency airline coupling. This immobilises the trailer and releases a key, which the driver hands to warehouse staff.

Inserting the key in the control panel next to the bay door powers up the bay and enables the door to be raised. Once the dock leveller has been correctly positioned, the driver is asked to pull the cab away, park in the holding area and wait while unloading takes place.