public transportation, collision accidents with the birds have continuously increased. Therefore, a countermeasure thereof is urgently needed.
At present, as an effort, a method of repelling the birds by installing a bird stress sound system and an alarm system in a green zone adjacent to a runway and periodically activating the systems as an alarm is primarily used and in some cases, a method of repelling the birds by safety officers (BAT team)' firing a hunting gun or air gun is also used.
Moreover, a method of spraying chemicals in the green zone is also used in consideration that most of birds sit in the green zone adjacent to the runway and collide with the air planes while flying due to noise of the airplanes when the airplanes take offto support vehicles during the handling process. In these pallet-based systems, the customer arrives at the parking garage and drives his or her car onto a pallet assigned to it for the duration of its storage. A carrier then arrives from a location within the garage and lifts the pallet. The carrier then moves the pallet to a parking space on the same floor or to a lift that carries the pallet to a different floor. If the pallet is moved to a different floor, a different carrier meets the pallet at the lift and moves the pallet to its assigned storage location. The floor plan of such garages is organized by a perpendicular arrangement of longitudinal circulation tracks and transverse tracks that provide access for the carrier