The flexibility of storage can only be ensured if the devices are able to work autonomously within the storage and adjust to their environment. The new shuttle is not assigned firmly to a rack aisle, as compared to the pallet ASRS and, in contrast to the conventional pallet shuttles, does not rely on a mother vehicle, since both items limit flexibility too much. For this reason, the OLPS shuttle moves bidirectionally anywhere in the rack, as well in a front-zone. The new shuttle thus permits many storage concepts, no matter if in cooperation with or without pallet conveyor technology. Storage may take place in single or multiple depth, also in any combinations.