A system for handling of luggage or parcel items comprises at least one cart with shelves, at least one item conveyor, such as a sorting conveyor or a luggage reclaim conveyor, and at least one item accumulation unit arranged in proximity to the conveyor. The item accumulation unit is configured as a buffer for storing a plurality of the items on a plurality of accumulation shelves. An item transfer structure is configured to transfer the plurality of the items from the sorting conveyor or from the shelves of the at least one cart into the item accumulation unit. Operation of item accumulation unit and/or the item transfer structure is controlled by a control system.