Airport infrastructure refers to the physical facilities and systems that support air travel. This includes runways, taxiways, and terminals where passengers board and disembark from flights. Additionally, it encompasses support services like baggage handling, security screening, and customs processing, all essential for efficient airport operations. Another key aspect of airport infrastructure is air traffic control systems, which ensure the safe and orderly movement of aircraft in the airspace and on the ground. Airports also require parking areas for passengers and rental cars, as well as amenities like shops and restaurants to enhance the travel experience.