Airport , also known as Airport and Airport , is officially named Airport , which is a flight field dedicated to the take-off and landing activities of Aircraft . Airport has different sizes. In addition to the runway, the airport usually has facilities such as tower, apron , air passenger terminal, maintenance factory, etc., and provides airport control services, air traffic control and other services. Owning and Operation of

Airport : Most airports in the world are owned by Federal , Regional or Local Government , and then the entire operation is supervised by private organizations. For example, UK BAA plc is managing 7 commercial airports in the UK and some airports outside the UK. Germany's Frankfurt International Airport is managed by Fraport AG.

Airport is also a connection point on the trade network, allowing various items and Strategy resources to trade with other airports. By the middle of the twentieth century, the

aircraft had become the world's dominant mode of long-haul transportation. It also has facilities to accommodate passengers and cargo, and provides refueling and maintenance services for landing aircraft. In the early 1940 s, the large number of aircraft used for combat also led to the construction of Air Force Base . The airport can be divided into "non-restricted areas" and "restricted areas" (controlled areas). The non-restricted area includes the parking lot, public transportation

station , oil storage area and connecting road, while the restricted area includes all places where aircraft enter, including runway, taxiway , apron and oil storage depot. Most airports will have strict control in the middle of the non-restricted area to the restricted area. Passengers must pass through the terminal when entering the restricted area, where they can purchase air tickets, undergo security checks, check in or claim luggage, and board the plane through gate . Terminal , also known as terminal building, is one of the main parts of the airport. There are check-in counters, waiting halls, entry and exit halls,

and Quarantine facilities, etc. There are also Public Transport Interchange Station to the urban area. # Airports 115 international flights are generally equipped with Customs and immigration facilities, but some countries have agreements with each other that passengers traveling by air are not required to undergo customs and immigration checks, so these facilities are not necessary facilities at international airports. International flights often require a high level of hardware security, and many countries apply the same level of security to both international and domestic airports.

Airport may also include VIP services, including express check-in, dedicated check-in counters, dedicated departure or arrival lounges, priority boarding, independent check-in airbridge and baggage priority handling.