Using pick and drop
The pick and drop option is useful in warehouses using stacker cranes and turret truck equipment. This equipment stays in a particular aisle, moving in pallets for putaway and moving out pallets for replenishments and full-pallet picks. Since these vehicles cannot leave the aisle, drivers must pick up inbound pallets at the end of the aisle and return outbound pallets to the end of the aisle.
This diagram shows a typical pick and drop scenario.