The design of the building is such that cycles transporting goods ride into the building at first floor level. The goods from the cycle trailer are then deposited in one lift and the cycle placed in the other lift. The weight of the deposited goods force the lift down to the ground floor, the lift is unloaded and the goods will be placed in ground floor storage. At the same time the empty cycle is taken up to the second floor, then the cycle is packed with new goods put back in the lift and descends back to the first floor and cycles out of the building.
And if you pardon the pun... the delivery 'cycle' repeats
