sentences:  However, there are instances where an aisle way is designated along a row of pallet rack for pedestrian or other traffic and not for operational access by the lifting or retrieval device.When a pedestrian or other traffic aisle way is designated along a run of pallet racking it is good practice to guard the aisle way from a potential hazard created by objects that may fall from the pallet rack.In these situations, load containment systems are added to the designated aisle way side of the pallet rack to prevent or control any item from falling off of the back of the rack system or potentially falling on and injuring a person in the aisle.