Terminology
The terms '' aerodrome'', '' airfield'', and '' airstrip'' also refer to airports, and the terms ''heliport'', ''seaplane base'', and ''Types of airports
An airport solely serving helicopters is called a heliport. An airport for use by seaplanes andManagement
Smaller or less-developed airfields, which represent the vast majority, often have a single runway shorter than . Larger airports for airline flights generally have paved runways of or longer. Skyline Airport in Inkom, Idaho has a runway that is only long. In the United States, the minimum dimensions for dry, hard landing fields are defined by the FAR Landing And Takeoff Field Lengths. These include considerations for safety margins during landing and takeoff. The longest public-use runway in the world is at Qamdo Bamda Airport in China. It has a length of . The world's widest paved runway is at Ulyanovsk Vostochny Airport in Russia and is wide. , the CIA stated that there were approximately 44,000 "airports or airfields recognizable from the air" around the world, including 15,095 in the US, the US having the most in the world.Airport ownership and operation
Most of the world's large airports are owned by local, regional, or national government bodies who then lease the airport to private corporations who oversee the airport's operation. For example, in the UK the state-owned British Airports Authority originally operated eight of the nation's major commercial airports – it was subsequently privatized in the late 1980s, and following its takeover by the Spanish Ferrovial consortium in 2006, has been further divested and downsized to operating just Heathrow. Germany's Frankfurt Airport is managed by the quasi-private firm Fraport. While in India GMR Group operates, through joint ventures, Indira Gandhi International Airport and Rajiv Gandhi International Airport. Bengaluru International Airport is controlled byAirport funding
The Airport & Airway Trust Fund ( AATF) was created by the Airport and Airway Development in 1970 which finances aviation programs in the United States. Airport Improvement Program (AIP), Facilities and Equipment (F&E), and Research, Engineering, and Development (RE&D) are the three major accounts of Federal Aviation Administration which are financed by the AATF, as well as pays for the FAA's Operation and Maintenance (O&M) account. The funding of these accounts are dependent on the taxes the airports generate of revenues. Passenger tickets,Airport revenue
Airports revenues are divided into three major parts:Aeronautical revenue
Aeronautical revenue are generated through airline rents and landing, passenger service, parking, and hangar fees. Landing fees are charged per aircraft for landing an airplane in the airport property. Landing fees are calculated through the landing weight and the size of the aircraft which varies but most of the airports have a fixed rate and a charge extra for extra weight. Passenger service fees are charges per passengers for the facilities used on a flight like water, food, wifi and shows which is paid while paying for an airline ticket. Aircraft parking is also a major revenue source for airports. Aircraft are parked for a certain amount of time before or after takeoff and have to pay to park there. Every airport has its own rates of parking, for example,Non-aeronautical revenue
Non-aeronautical revenue is gained through things other than aircraft operations. It includes lease revenue from compatible land-use development, non-aeronautical building leases, retail and concession sales, rental car operations, parking and in-airport advertising. Concession revenue is one big part of non-aeronautical revenue airports makes through duty free, bookstores, restaurants and money exchange. Car parking is a growing source of revenue for airports, as more people use the parking facilities of the airport.Landside and airside areas
Airports are divided into landside and airside zones. The landside is subject to fewer special laws and is part of the public realm, while access to the airside zone is tightly controlled. Landside facilities may include publicly accessibleFacilities
A terminal is a building with passenger facilities. Small airports have one terminal. Large ones often have multiple terminals, though some large airports likeAirport security
Airport security normally requires baggage checks, metal screenings of individual persons, and rules against any object that could be used as a weapon. Since the September 11 attacks and the Real ID Act of 2005, airport security has dramatically increased and got tighter and stricter than ever before.Products and services
Most major airports provide commercial outlets for products and services. Most of these companies, many of which are internationally known brands, are located within the departure areas. These include clothing boutiques and restaurants and in the US amounted to $4.2 billion in 2015. Prices charged for items sold at these outlets are generally higher than those outside the airport. However, some airports now regulate costs to keep them comparable to "street prices". This term is misleading as prices often match the manufacturers'Premium and VIP services
Airports may also contain premium and VIP services. The premium and VIP services may include express check-in and dedicated check-in counters. These services are usually reserved for first and business class passengers, premium frequent flyers, and members of the airline's clubs. Premium services may sometimes be open to passengers who are members of a different airline's frequent flyer program. This can sometimes be part of a reciprocal deal, as when multiple airlines are part of the same alliance, or as a ploy to attract premium customers away from rival airlines. Sometimes these premium services will be offered to a non-premium passenger if the airline has made a mistake in handling of the passenger, such as unreasonable delays or mishandling of checked baggage. Airline lounges frequently offer free or reduced cost food, as well as alcoholic and non-alcoholic beverages. Lounges themselves typically have seating, showers, quiet areas, televisions, computer, Wi-Fi and Internet access, and power outlets that passengers may use for their electronic equipment. Some airline lounges employ baristas, bartenders and gourmet chefs. Airlines sometimes operate multiple lounges within the one airport terminal allowing ultra-premium customers, such as first class customers, additional services, which are not available to other premium customers. Multiple lounges may also prevent overcrowding of the lounge facilities.Cargo and freight service
In addition to people, airports move cargo around the clock. Cargo airlines often have their own on-site and adjacent infrastructure to transfer parcels between ground and air. Cargo Terminal Facilities are areas where international airports export cargo has to be stored after customs clearance and prior to loading the aircraft. Similarly, import cargo that is offloaded needs to be in bond before the consignee decides to take delivery. Areas have to be kept aside for examination of export and import cargo by the airport authorities. Designated areas or sheds may be given to airlines or freight forward ring agencies. Every cargo terminal has a landside and an airside. The landside is where the exporters and importers through either their agents or by themselves deliver or collect shipments while the airside is where loads are moved to or from the aircraft. In addition, cargo terminals are divided into distinct areas – export, import, and interline or transshipment.Access and onward travel
Airports require parking lots, for passengers who may leave the cars at the airport for a long period of time. Large airports will also have car-rental firms, taxi ranks, bus stops and sometimes a train station. Many large airports are located near railway trunk routes for seamless connection of multimodal transport, for instance Frankfurt Airport,Internal transport
The distances passengers need to move within a large airport can be substantial. It is common for airports to provide moving walkways, buses, and rail transport systems. Some airports like Hartsfield–Jackson Atlanta International Airport and London Stansted Airport have a transit system that connects some of the gates to a main terminal. Airports with more than one terminal have a transit system to connect the terminals together, such as John F. Kennedy International Airport,Airport operations
There are three types of surface that aircraft operate on: *Runways, for takeoff and landing * Taxiways, where planes "taxi" (transfer to and from a runway) * Apron or ramp: a surface where planes are parked, loaded, unloaded or refuelled.Air traffic control
Air traffic control (ATC) is the task of managing aircraft movements and making sure they are safe, orderly and expeditious. At the largest airports, air traffic control is a series of highly complex operations that requires managing frequent traffic that moves in all three dimensions. A "towered" or "controlled" airport has a control tower where the air traffic controllers are based. Pilots are required to maintain two-way radio communication with the controllers, and to acknowledge and comply with their instructions. A " non-towered" airport has no operating control tower and therefore two-way radio communications are not required, though it is good operating practice for pilots to transmit their intentions on the airport's common traffic advisory frequency (CTAF) for the benefit of other aircraft in the area. The CTAF may be a Universal Integrated Community (UNICOM), MULTICOM, Flight Service Station (FSS), or tower frequency. The majority of the world's airports are small facilities without a tower. Not all towered airports haveGround control
Ground control is responsible for directing all ground traffic in designated " movement areas", except the traffic on runways. This includes planes, baggage trains, snowplows, grass cutters, fuel trucks, stair trucks, airline food trucks, conveyor belt vehicles and other vehicles. Ground Control will instruct these vehicles on which taxiways to use, which runway they will use (in the case of planes), where they will park, and when it is safe to cross runways. When a plane is ready to takeoff it will be turned over to tower control. Conversely, after a plane has landed it will depart the runway and be "handed over" from Tower to Ground Control.Tower control
Tower control is responsible for aircraft on the runway and in theTraffic pattern
At all airports the use of a traffic pattern (often called a ''traffic circuit'' outside the US) is possible. They may help to assure smooth traffic flow between departing and arriving aircraft. There is no technical need within modern commercial aviation for performing this pattern, ''provided there is no queue''. And due to the so-called SLOT-times, the overall traffic planning tend to assure landing queues are avoided. If for instance an aircraft approaches runway 17 (which has a heading of approx. 170 degrees) from the north (coming from 360/0 degrees heading towards 180 degrees), the aircraft will land as fast as possible by just turning 10 degrees and follow the glidepath, without orbit the runway for visual reasons, whenever this is possible. For smaller piston engined airplanes at smaller airfields without ILS equipment, things are very different though. Generally, this pattern is a circuit consisting of five "legs" that form a rectangle (two legs and the runway form one side, with the remaining legs forming three more sides). Each leg is named (see diagram), and ATC directs pilots on how to join and leave the circuit. Traffic patterns are flown at one specific altitude, usually above ground level (AGL). Standard traffic patterns are ''left-handed'', meaning all turns are made to the left. One of the main reason for this is that pilots sit on the left side of the airplane, and a Left-hand patterns improves their visibility of the airport and pattern. Right-handed patterns do exist, usually because of obstacles such as a mountain, or to reduce noise for local residents. The predetermined circuit helps traffic flow smoothly because all pilots know what to expect, and helps reduce the chance of a mid-air collision. At controlled airports, a circuit can be in place but is not normally used. Rather, aircraft (usually only commercial with long routes) request approach clearance while they are still hours away from the airport; the destination airport can then plan a queue of arrivals, and planes will be guided into one queue per active runway for a "straight-in" approach. While this system keeps the airspace free and is simpler for pilots, it requires detailed knowledge of how aircraft are planning to use the airport ahead of time and is therefore only possible with large commercial airliners on pre-scheduled flights. The system has recently become so advanced that controllers can predict whether an aircraft will be delayed on landing before it even takes off; that aircraft can then be delayed on the ground, rather than wasting expensive fuel waiting in the air.Navigational aids
There are a number of aids, both visual and electronic, though not at all airports. A visual approach slope indicator (VASI) helps pilots fly the approach for landing. Some airports are equipped with a VHF omnidirectional range (VOR) to help pilots find the direction to the airport. VORs are often accompanied by a distance measuring equipment (DME) to determine the distance to the VOR. VORs are also located off airports, where they serve to provide airways for aircraft to navigate upon. In poor weather, pilots will use an instrument landing system (ILS) to find the runway and fly the correct approach, even if they cannot see the ground. The number of instrument approaches based on the use of theTaxiway signs
Airport guidance signs provide direction and information to taxiing aircraft and airport vehicles. Smaller aerodromes may have few or no signs, relying instead on diagrams and charts.Lighting
Many airports have lighting that help guide planes using the runways and taxiways at night or in rain or fog. On runways, green lights indicate the beginning of the runway for landing, while red lights indicate the end of the runway. Runway edge lighting consists of white lights spaced out on both sides of the runway, indicating the edges. Some airports have more complicated lighting on the runways including lights that run down the centerline of the runway and lights that help indicate the approach (anWeather observations
Weather observations at the airport are crucial to safe takeoffs and landings. In the US and Canada, the vast majority of airports, large and small, will either have some form of automated airport weather station, whether an AWOS, ASOS, or AWSS, a human observer or a combination of the two. These weather observations, predominantly in the METAR format, are available over the radio, through automatic terminal information service (ATIS), via the ATC or the flight service station. Planes take-off and land ''into'' the wind to achieve maximum performance. Because pilots need instantaneous information during landing, a windsock can also be kept in view of the runway. Aviation windsocks are made with lightweight material, withstand strong winds and some are lit up after dark or in foggy weather. Because visibility of windsocks is limited, often multiple glow-orange windsocks are placed on both sides of the runway.Airport ground crew (ground handling)
Most airports have groundcrew handling the loading and unloading of passengers, crew, baggage and other services. Some groundcrew are linked to specific airlines operating at the airport. Among the vehicles that serve an airliner on the ground are: *A tow tractor to move the aircraft in and out of the berth. *A jet bridge (in some airports) or stairs unit to allow passengers to embark and disembark. *A ground power unit for supplying electricity. As the engines will be switched off, they will not be generating electricity as they do in flight. *A cleaning service. *A catering service to deliver food and drinks for a flight. *A toilet waste truck to empty the tank which holds the waste from the toilets in the aircraft. *A water truck to fill the water tanks of the aircraft. *A refueling vehicle. The fuel may come from a tanker, or from underground fuel tanks. *A conveyor belt unit for loading and unloading luggage. *A vehicle to transport luggage to and from the terminal. The length of time an aircraft remains on the ground in between consecutive flights is known as "turnaround time". Airlines pay great attention to minimizing turnaround times in an effort to keep aircraft use (flying time) high, with times scheduled as low as 25 minutes for jet aircraft operated by low-cost carriers on narrow-body aircraft.Maintenance management
Like industrial equipment or facility management, airports require tailor-made maintenance management due to their complexity. With many tangible assets spread over a large area in different environments, these infrastructures must therefore effectively monitor these assets and store spare parts to maintain them at an optimal level of service. To manage these airport assets, several solutions are competing for the market: Computerized maintenance management system, CMMS (computerized maintenance management system) predominate, and mainly enable a company's maintenance activity to be monitored, planned, recorded and rationalized.Safety management
Aviation safety is an important concern in the operation of an airport, and almost every airfield includes equipment and procedures for handling emergency situations. Airport crash tender crews are equipped for dealing with airfield accidents, crew and passenger extractions, and the hazards of highly flammable aviation fuel. The crews are also trained to deal with situations such as bomb threats, Aircraft hijacking, hijacking, and terrorist activities. Hazards to aircraft include debris, nesting birds, and reduced friction levels due to environmental conditions such as ice, snow, or rain. Part of runway maintenance is airfield rubber removal which helps maintain friction levels. The fields must be kept clear of debris using cleaning equipment so that loose material does not become a projectile and enter an engine duct (see foreign object damage). In adverse weather conditions, ice and snow clearing equipment can be used to improve traction on the landing strip. For waiting aircraft, equipment is used to spray special deicing fluids on the wings. Many airports are built near open fields or wetlands. These tend to attract bird populations, which can pose a hazard to aircraft in the form of bird strikes. Airport crews often need to discourage birds from taking up residence. Some airports are located next to parks, golf courses, or other low-density uses of land. Other airports are located near densely populated urban or suburban areas. An airport can have areas where collisions between aircraft on the ground tend to occur. Records are kept of any runway incursion, incursions where aircraft or vehicles are in an inappropriate location, allowing these "hot spots" to be identified. These locations then undergo special attention by transportation authorities (such as the FAA in the US) and airport administrators. During the 1980s, a phenomenon known as microburst became a growing concern due to Aviation accidents and incidents, aircraft accidents caused by microburst wind shear, such as Delta Air Lines Flight 191. Microburst radar was developed as an aid to safety during landing, giving two to five minutes' warning to aircraft in the vicinity of the field of a microburst event. Some airfields now have a special surface known as soft concrete at the end of the runway (Blast pad, stopway or blastpad) that behaves somewhat like styrofoam, bringing the plane to a relatively rapid halt as the material disintegrates. These surfaces are useful when the runway is located next to a body of water or other hazard, and prevent the planes from overrunning the end of the field. Airports often have Aircraft rescue and firefighting, on-site firefighters to respond to emergencies. These use specialized vehicles, known as airport crash tenders. Most civil aviation authorities have required levels of on-site emergency response capabilities based on an airport's traffic. At airports where civil and military operations share a common set of runways and infrastructure, emergency response is often managed by the relevant military unit as part of their base's operations.Environmental concerns and sustainability
Aircraft noise is a major cause of Noise pollution, noise disturbance to residents living near airports. Sleep can be affected if the airports operate night and early morning flights. Aircraft noise occurs not only from take-offs and landings but also from ground operations including maintenance and testing of aircraft. Noise can have Health effects from noise, other health effects as well. Other noises and environmental concerns are vehicle traffic causing noise and pollution on roads leading to the airport. The construction of new airports or addition of runways to existing airports, is often resisted by local residents because of the effect on countryside, historical sites, and local flora and fauna. Due to the risk of collision between birds and aircraft, large airports undertake population control programs where they frighten or shoot birds. The construction of airports has been known to change local weather patterns. For example, because they often flatten out large areas, they can be susceptible to fog in areas where fog rarely forms. In addition, they generally replace trees and grass with pavement, they often change drainage patterns in agricultural areas, leading to more flooding, run-off and erosion in the surrounding land. Airports are often built on low-lying coastal land, globally 269 airports are at risk of coastal flooding now. A temperature rise of 2oC – consistent with the Paris Agreement - would lead to 100 airports being below mean sea level and 364 airports at risk of flooding. If global mean temperature rise exceeds this then as many as 572 airports will be at risk by 2100, leading to major disruptions without appropriate adaptation. Some of the airport administrations prepare and publish annual environmental reports to show how they consider these environmental concerns in airport management issues and how they protect environment from airport operations. These reports contain all environmental protection measures performed by airport administration in terms of water, air, soil and noise pollution, resource conservation and protection of natural life around the airport. A 2019 report from the Cooperative Research Programs of the US Transportation Research Board showed all airports have a role to play in advancing greenhouse gas (GHG) reduction initiatives. Small airports have demonstrated leadership by using their less complex organizational structure to implement newer technologies and to serve as a proving ground for their feasibility. Large airports have the economic stability and staff resources necessary to grow in-house expertise and fund comprehensive new programs. A growing number of airports are installing solar photovoltaic arrays to offset their electricity use. The National Renewable Energy Lab has shown this can be done safely. This can also be done on the roofs of the airports and it has been found that the solar panels on these buildings work more effectively when compared to residential panels. The world's first airport to be fully powered by solar energy is located at Cochin International Airport, Kochi, India. Another airport known for considering environmental concerns is Seymour Airport in the Galapagos Islands.Military air base
An airbase, sometimes referred to as an ''air station'' or ''airfield'', provides basing and support of military aircraft. Some airbases, known as ''military airports'', provide facilities similar to their civilian counterparts. For example, RAF Brize Norton in the UK has a terminal that caters to passengers for the Royal Air Force's scheduled flights to the Falkland Islands. Some airbases are co-located with civilian airports, sharing the same ATC facilities, runways, taxiways and emergency services, but with separate terminals, parking areas and hangars. Bardufoss Airport, Bardufoss Air Station in Norway and Pune Airport in India are examples of this. An aircraft carrier is a warship that functions as a mobile airbase. Aircraft carriers allow a Navy, naval force to project Aerial warfare, air power without having to depend on local bases for land-based aircraft. After their development in World War I, aircraft carriers replaced the battleship as the centrepiece of a modern fleet during World War II.Airport designation and naming
Most airports in the United States are designated "private-use airports" meaning that, whether publicly- or privately owned, the airport is not open or available for use by the public (although use of the airport may be made available by invitation of the owner or manager). Airports are uniquely represented by their International Air Transport Association airport code, IATA airport code and International Civil Aviation Organization airport code, ICAO airport code. Most airport names include the location. Many airport names honour a public figure, commonly a politician (e.g., Charles de Gaulle Airport, George Bush Intercontinental Airport, Lennart Meri Airport, O. R. Tambo International Airport, O.R. Tambo International Airport, Soekarno–Hatta International Airport), a monarch (e.g. Chhatrapati Shivaji International Airport, King Shaka International Airport), a cultural leader (e.g. Liverpool John Lennon Airport, Leonardo da Vinci-Fiumicino Airport, Louis Armstrong New Orleans International Airport) or a prominent figure in aviation history of the region (e.g. Sydney Kingsford Smith Airport), sometimes even famous writers (e.g. Allama Iqbal International Airport) and explorers (e.g. Venice Marco Polo Airport). Some airports have unofficial names, possibly so widely circulated that its official name is little used or even known. Some airport names include the word "International" to indicate their ability to handle International airport, international air traffic. This includes some airports that do not have scheduled international airline services (e.g. Port Elizabeth International Airport).History and development
The earliest aircraft takeoff and landing sites were grassy fields. The plane could approach at any angle that provided a favorable wind direction. A slight improvement was the dirt-only field, which eliminated the drag from grass. However, these functioned well only in dry conditions. Later, concrete surfaces would allow landings regardless of meteorological conditions. The title of "world's oldest airport" is disputed. Toussus-le-Noble Airport, Toussus-le-Noble airport near Paris, France was established in 1907 and has been operating since. College Park Airport in Maryland, US, established in 1909 by Wright brothers, Wilbur Wright serves only general aviation traffic. Beijing Nanyuan Airport in China, which was built to accommodate planes in 1904, and airships in 1907, opened in 1910. It was in operation until September 2019. Pearson Field Airport in Vancouver, Washington, United States, was built to accommodate planes in 1905 and airships in 1911, and is still in use as of January 2022. Hamburg Airport opened in January 1911, making it the oldest commercial airport in the world which is still in operation. Bremen Airport opened in 1913 and remains in use, although it served as an American military field between 1945 and 1949.Airports in entertainment
Airports have played major roles in films and television programs due to their very nature as a transport and international hub, and sometimes because of distinctive architectural features of particular airports. One such example of this is ''The Terminal'', a film about a man who becomes permanently grounded in an airport terminal and must survive only on the food and shelter provided by the airport. They are also one of the major elements in movies such as ''The V.I.P.s (film), The V.I.P.s'', ''Speed (1994 film), Speed'', ''Airplane!'', ''Airport (1970 film), Airport'' (1970), ''Die Hard 2'', ''Soul Plane'', ''Jackie Brown (film), Jackie Brown'', ''Get Shorty (film), Get Shorty'', ''Home Alone'' (1990), ''Home Alone 2: Lost in New York'' (1992), ''Liar Liar'', ''Passenger 57'', ''Final Destination (film), Final Destination'' (2000), ''Unaccompanied Minors'', ''Catch Me If You Can'', ''Rendition (film), Rendition'' and ''The Langoliers (TV miniseries), The Langoliers''. They have also played important parts in television series like ''Lost (2004 TV series), Lost'', ''The Amazing Race'', ''America's Next Top Model (season 10)'', ''90 Day Fiancé'', ''Air Crash Investigation'' which have significant parts of their story set within airports. In other programmes and films, airports are merely indicative of journeys, e.g. ''Good Will Hunting''. Several computer simulation games put the player in charge of an airport. These include the Airport Tycoon series, SimAirport and Airport CEO.Airport directories
Each civil aviation authority provides a source of information about airports in their country. This will contain information on airport elevation, airport lighting, runway information, communications facilities and frequencies, hours of operation, nearby Navigational aid, NAVAIDs and contact information where prior arrangement for landing is necessary. ;Australia :Information can be found on-line in the ''En route Supplement Australia'' (ERSA) which is published by Airservices Australia, a government owned corporation charged with managing Australian ATC. ;Brazil Infraero is responsible for the airports in Brazil ;Canada :Two publications, the ''Canada Flight Supplement'' (CFS) and the ''Water Aerodrome Supplement'', published by Nav Canada under the authority of Transport Canada provides equivalent information. ;Europe :The European Organisation for the Safety of Air Navigation (EUROCONTROL) provides an Aeronautical Information Publication (AIP), aeronautical charts and NOTAM services for multiple European countries. ;Germany :Provided by the Luftfahrt-Bundesamt (Federal Office for Civil Aviation of Germany). ;France :''Aviation Generale Delage'' edited by Delville and published by Breitling. ;The United Kingdom :The information is found in Pooley's Flight Guide, a publication compiled with the assistance of the Civil Aviation Authority (United Kingdom), United Kingdom Civil Aviation Authority (CAA). Pooley's also contains information on some continental European airports that are close to Great Britain. National Air Traffic Services, the UK's Air Navigation Service Provider, a public–private partnership also publishes an online AIP for the UK. ;The United States :The US uses the ''Airport/Facility Directory'' (A/FD) (now officially termed the Chart Supplement) published in seven volumes. DAFIF also includes extensive airport data but has been unavailable to the public at large since 2006. ;Japan :''Aeronautical Information Publication'' (AIP) is provided by Japan Aeronautical Information Service Center, under the authority of Japan Civil Aviation Bureau, Ministry of Land, Infrastructure, Transport and Tourism (Japan), Ministry of Land, Infrastructure, Transport and Tourism of Japan. ''A comprehensive, consumer/business directory of commercial airports in the world (primarily for airports as businesses, rather than for pilots) is organized by the trade group Airports Council International.''See also
* Airpark * Altiport * Environmental impact of aviation * Model airport * World's busiest airports * Seaplane base Lists: * Index of aviation articles * List of cities with more than one commercial airport * List of countries without an airport * List of defunct international airports * List of hub airportsReferences
Bibliography
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