A method and apparatus are provided for storing or retrieving items to/from a plurality of destinations areas. The items are loaded onto one of a plurality of independently controlled delivery vehicles. The delivery vehicles follow a path to/from the destination areas that are positioned along the path. The destination areas are configured such that the destination areas have a depth to accommodate a plurality of containers in a horizontal line one behind another. The containers may be releasable interconnected so that retrieving one of the interconnected containers displaces one or more connected containers.

A vehicle for delivering a plurality of packages disposed in a plurality of bins is described. The vehicle includes a grid of a plurality of motorized tiles configured to enable movement of the plurality of bins within the vehicle. The vehicle further includes a robotic arm disposed at a vehicle rear portion. The robotic arm may be configured to load or unload a bin to or from the grid of the plurality of motorized tiles. The robotic arm may be attached to a linear actuator that is configured to move the robotic arm in a vehicle interior portion.