An airport is an aerodrome with extended facilities, mostly for commercial air transport.[1][2] Airports usually consist of a landing area, which comprises an aerially accessible open space including at least one operationally active surface such as a runway for a plane to take off and to land[3] or a helipad,[4] and often includes adjacent utility buildings such as control towers, hangars[5] and terminals, to maintain and monitor aircraft. Larger airports may have airport aprons, taxiway bridges, air traffic control centres, passenger facilities such as restaurants and lounges, and emergency services. In some countries, the US in particular, airports also typically have one or more fixed-base operators, serving general aviation.
Airport operations are extremely complex, with a complicated system of aircraft support services, passenger services, and aircraft control services contained within the operation. Thus airports can be major employers, as well as important hubs for tourism and other kinds of transit. Because they are sites of operation for heavy machinery, a number of regulations and safety measures have been implemented in airports, in order to reduce hazards. Additionally, airports have major local environmental impacts, as both large sources of air pollution, noise pollution and other environmental impacts, making them sites that acutely experience the environmental effects of aviation. Airports are also vulnerable infrastructure to extreme weather, climate change caused sea level rise and other disasters.
Commercial jets wait for the "7am hold" to pass before departing from John Wayne Airport in Orange County (Santa Ana), California, on February 14, 2015
In colloquial use in certain environments, the terms airport and aerodrome are often interchanged. However, in general, the term airport may imply or confer a certain stature upon the aviation facility that other aerodromes may not have achieved. In some jurisdictions, airport is a legal term of art reserved exclusively for those aerodromes certified or licensed as airports by the relevant civil aviation authority after meeting specified certification criteria or regulatory requirements.[6]
That is to say, all airports are aerodromes, but not all aerodromes are airports. In jurisdictions where there is no legal distinction between aerodrome and airport, which term to use in the name of an aerodrome may be a commercial decision. In US technical/legal usage, landing area is used instead of aerodrome, and airport means "a landing area used regularly by aircraft for receiving or discharging passengers or cargo".[7]
Smaller or less-developed airfields, which represent the vast majority, often have a single runway shorter than 1,000m (3,300ft). Larger airports for airline flights generally have paved runways of 2,000m (6,600ft) or longer. Skyline Airport in Inkom, Idaho, has a runway that is only 122m (400ft) long.[8]
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.
As of 2009[update], 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.[9][10]
Airport ownership and operation
The Berlin Brandenburg Airport is publicly financed by the states of Berlin and Brandenburg and the Federal Republic of Germany.
In Canada, the federal authority, Transport Canada, divested itself of all but the remotest airports in 1999/2000. Now most airports in Canada are operated by individual legal authorities, such as Vancouver International Airport Authority (although still owned by Transport Canada); some airports, such as Boundary Bay Airport and Pitt Meadows Airport, are municipally owned.
Many US airports still lease part or all of their facilities to outside firms, who operate functions such as retail management and parking. All US commercial airport runways are certified by the FAA[11] under the Code of Federal Regulations Title 14 Part 139, "Certification of Commercial Service Airports"[12] but maintained by the local airport under the regulatory authority of the FAA.
Despite the reluctance to privatize airports in the US (contrary to the FAA sponsoring a privatization program since 1996), the government-owned, contractor-operated (GOCO) arrangement is the standard for the operation of commercial airports in the rest of the world.
Airport 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.[13]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.[14] The funding of these accounts are dependent on the taxes the airports generate of revenues. Passenger tickets, fuel, and cargo tax are the taxes that are paid by the passengers and airlines help fund these accounts.[15]
Airport revenue
Airports revenues are divided into three major parts: aeronautical revenue, non-aeronautical revenue, and non-operating revenue. Aeronautical revenue makes up 50% in 2021 (from 54% and 48% in 2019 and 2020, non-aeronautical revenue makes up 34% (40%, 39% in previous years), and non-operating revenue makes up 16% (6%, 14%) of the total revenue of airports.[16]
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.[17]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.[18] 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.[citation needed] 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.[19] Every airport has its own rates of parking, for example, John F Kennedy airport in New York City charges $45 per hour for a plane of 100,000 pounds and the price increases with weight.[20]
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.[21] Concession revenue is one big part of non-aeronautical revenue airports makes through duty free, bookstores, restaurants and money exchange.[19] Car parking is a growing source of revenue for airports, as more people use the parking facilities of the airport. O'Hare International Airport in Chicago charges $2 per hour for every car.[22]
Price regulation
Many airports are local monopolies. To prevent them from abusing their market power, governments regulate how much airports may charge to airlines, using price-cap regulation.[23][24]
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 accessible airport check-in desks, shops and ground transportation facilities.[25] The airside area includes all parts of the airport around the aircraft, and the parts of the buildings that are restricted to staff, and sections of these extended to travelling, airside shopping, dining, or waiting passengers. Depending on the airport, passengers and staff must be checked by security or border control before being permitted to enter the airside zone. Conversely, passengers arriving from an international flight must pass through border control and customs to access the landside area, in which they exit, unless in airside transit. Most multi-terminal airports have (variously termed) flight/passenger/air connections buses, moving walkways and/or people movers for inter-terminal airside transit. Their airlines can arrange for baggage to be routed directly to the passenger's destination. Most major airports issue a secure keycard, an airside pass to employees, to assist in their reliable, standardized and efficient verification of identity.
A terminal is a building with passenger facilities. Small airports have one terminal. Large ones often have multiple terminals, though some large airports, like Amsterdam Airport Schiphol, still have one terminal. The terminal has a series of gates, which provide passengers with access to the plane.
The following facilities are essential for departing passengers:
For both sets of passengers, there must be a link between the passenger facilities and the aircraft, such as jet bridges or airstairs. There also needs to be a baggage handling system, to transport baggage from the baggage drop-off to departing planes, and from arriving planes to the baggage reclaim.
The area where the aircraft parks to load passengers and baggage is known as an apron or ramp (or incorrectly,[26] "the tarmac").
Airports with international flights have customs and immigration facilities. However, as some countries have agreements that allow travel between them without customs and immigrations, such facilities are not a definitive need for an international airport. International flights often require a higher level of physical security, although in recent years, many countries have adopted the same level of security for international and domestic travel.
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.
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 $4.2billion in 2015.[27] 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' suggested retail price (MSRP) but are almost never discounted.[28]
Many new airports include walkthrough duty-free stores that require air passengers to enter a retail store upon exiting security.[29] Airport planners sometimes incorporate winding routes within these stores such that passengers encounter more goods as they walk towards their gate. Planners also install artworks next to the airport's shops in order to draw passengers into the stores.
Smoking area inside Abu Dhabi airport.
Apart from major fast food chains, some airport restaurants offer regional cuisine specialties for those in transit so that they may sample local food without leaving the airport.[30]
Some airport structures include on-site hotels built within or attached to a terminal building. Airport hotels have grown popular due to their convenience for transient passengers and easy accessibility to the airport terminal. Many airport hotels also have agreements with airlines to provide overnight lodging for displaced passengers.
Major airports in such countries as Russia and Japan offer miniature sleeping units within the airport that are available for rent by the hour. The smallest type is the capsule hotel popular in Japan. A slightly larger variety is known as a sleep box. An even larger type is provided by the company YOTEL.
Some airports provide smoking areas and prayer areas.
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.
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.
Airport operations are made possible by an organized network of trained personnel, specialized equipment, and spatial data. After thousands of ground operations staff left the industry during the COVID-19 pandemic, there have been discussions on the need for systemic improvements in three primary areas:
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 have 24/7 ATC operations. In those cases, non-towered procedures apply when the tower is not in use, such as at night. Non-towered airports come under area (en-route) control. Remote and virtual tower (RVT) is a system in which ATC is handled by controllers who are not present at the airport itself.
Air traffic control responsibilities at airports are usually divided into at least two main areas: ground and tower, though a single controller may work both stations. The busiest airports may subdivide responsibilities further, with clearance delivery, apron control, and/or other specialized ATC stations.
Ground 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 the controlled airspace immediately surrounding the airport. Tower controllers may use radar to locate an aircraft's position in 3D space, or they may rely on pilot position reports and visual observation. They coordinate the sequencing of aircraft in the traffic pattern and direct aircraft on how to safely join and leave the circuit. Aircraft which are only passing through the airspace must also contact tower control to be sure they remain clear of other traffic.
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 800 or 1,000ft (244 or 305m)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.
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 the Global Positioning System (GPS) is rapidly increasing and may eventually become the primary means for instrument landings.
Larger airports sometimes offer precision approach radar (PAR), but these systems are more common at military air bases than civilian airports. The aircraft's horizontal and vertical movement is tracked via radar, and the controller tells the pilot his position relative to the approach slope. Once the pilots can see the runway lights, they may continue with a visual landing.
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.
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 (an approach lighting system, or ALS). Low-traffic airports may use pilot-controlled lighting to save electricity and staffing costs.
Along taxiways, blue lights indicate the taxiway's edge, and some airports have embedded green lights that indicate the centerline.
Weather observations at the airport are crucial to safe takeoffs and landings. In the United States 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.[32]
Most airports have groundcrew handling the loading and unloading of passengers, crew, baggage and other services. Some groundcrew are linked to specific airlines.
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 seek to minimize turnaround times, with times scheduled as low as 25 minutes.[citation needed]
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.[33]
To manage these airport assets, several solutions are competing for the market: CMMS (computerized maintenance management system) predominate, and mainly enable a company's maintenance activity to be monitored, planned, recorded and rationalized.[33]
Safety management
"FLF Panther" airport crash tender in GermanyRoad crossing of (Shetland) A970 with Sumburgh Airport's runway. The movable barrier closes when aircraft land or take off.
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, 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 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 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 (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 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.
Aircraft noise is a major cause of 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 other health effects as well. Other noises and environmental concerns are vehicle traffic causing noise and pollution on roads leading to the airport.[34]
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.[35]
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.[36][citation needed] Airports are often built on low-lying coastal land, globally 269 airports are at risk of coastal flooding now.[37] 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.[37] 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.[37]
Open area near the runway at the Kuopio Airport, in 1966
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.[38]
A growing number of airports are installing solar photovoltaic arrays to offset their electricity use.[39][40] The National Renewable Energy Lab has shown this can be done safely.[41] 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.[42][clarification needed]
The world's first airport to be fully powered by solar energy is located at Kochi,[43][44] India. Another airport known for considering environmental concerns is Seymour Airport in the Galapagos Islands.
As a part of their sustainability efforts, more and more airports are starting to explore the consequences of more electric aircraft coming into service. Electric aircraft need a lot of energy; operating 49 small 50 passenger short range battery electric aircraft would demand at least 16 GWh/year,[45] and with short turnaround times between different flights, the charging powers have to be substantial. To tackle these issues, more airports are starting to look into alternative energy production such as solar power and wind power, but also how to use airport areas for biomass production.[46][47] Another solution investigated is to use energy storage to charge during the night and use to charge the aircraft during daytime.[47][48]
Airport hygiene and public health concerns
Airports, as major international travel hubs, have the potential to be significant transmission points for infectious diseases. A notable study conducted during the peak of the 2015–2016 flu season at Helsinki-Vantaa airport in Finland revealed that commonly touched surfaces in airports, especially the plastic security screening trays, are highly susceptible to contamination by respiratory viruses. These trays are touched by hundreds of passengers daily and, being made of plastic, a non-porous material, provide an environment where viruses can survive for extended periods. In comparison, bathroom surfaces in the same airport tested negative for respiratory viruses, possibly indicating a heightened awareness of hygiene in these spaces.[49][50]
Hand hygiene plays a pivotal role in preventing the spread of infectious diseases in airports. Research indicates that only about 70% of individuals wash their hands after using the toilet, and of those, only 50% do so correctly. In airport settings, just one in five individuals maintain clean hands—defined as washing with soap for at least 15 seconds in the preceding hour. Given the frequent touching of shared surfaces in airports, such as trays, railings, and touch panels, this poses a significant risk for disease transmission. A study from the University of Cyprus and MIT used models and simulations to demonstrate that increasing hand cleanliness from 20% to 30% in all airports could reduce the potential global impact of a disease by 24%. If cleanliness levels reached 60%, this impact could decrease by 69%. Focusing on just the top 10 most influential airports for disease spread, enhancing hand hygiene practices could still significantly reduce disease transmission rates from 45% to 37%. The findings underscore the importance of promoting hand-washing in airports as a key measure in preventing the global spread of diseases.[51][52]
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 naval force to project 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.
Entrance of Tallinn Airport, also known as Lennart Meri Airport
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).
Some airports have unofficial names, possibly so widely circulated that its official name is little used or even known.[citation needed]
Some airport names include the word "International" to indicate their ability to handle 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.[53] 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.
Beijing Nanyuan Airport in China, which was built to accommodate planes in 1904, and airships in 1907, opened in 1910.[54] 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 February 2024.[55]
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. Amsterdam Airport Schiphol opened on September 16, 1916, as a military airfield, but has accepted civil aircraft only since December 17, 1920, allowing Sydney Airport—which started operations in January 1920—to claim to be one of the world's oldest continuously operating commercial airports.[56]Minneapolis-Saint Paul International Airport in the US opened in 1920 and has been in continuous commercial service since. It serves about 35,000,000 passengers each year and continues to expand, recently opening a new 11,000-foot (3,355 m) runway. Of the airports constructed during this early period in aviation, it is one of the largest and busiest that is still currently operating. Don Mueang International Airport near Bangkok, Thailand, opened 1914, is also a contender, as well as the Rome Ciampino Airport, which opened in 1916. Increased aircraft traffic during World War I led to the construction of landing fields. Aircraft had to approach these from certain directions and this led to the development of aids for directing the approach and landing slope.
Following the war, some of these military airfields added civil facilities for handling passenger traffic. One of the earliest such fields was Paris – Le Bourget Airport at Le Bourget, near Paris. The first airport to operate scheduled international commercial services was Hounslow Heath Aerodrome in August 1919, but it was closed and supplanted by Croydon Airport in March 1920.[57] In 1922, the first permanent airport and commercial terminal solely for commercial aviation was opened at Flughafen Devau near what was then Königsberg, East Prussia. The airports of this era used a paved "apron", which permitted night flying as well as landing heavier aircraft.
The first lighting used on an airport was during the latter part of the 1920s; in the 1930s approach lighting came into use. These indicated the proper direction and angle of descent. The colours and flash intervals of these lights became standardized under the International Civil Aviation Organization (ICAO). In the 1940s, the slope-line approach system was introduced. This consisted of two rows of lights that formed a funnel indicating an aircraft's position on the glideslope. Additional lights indicated incorrect altitude and direction.
After World War II, airport design became more sophisticated. Passenger buildings were being grouped together in an island, with runways arranged in groups about the terminal. This arrangement permitted expansion of the facilities. But it also meant that passengers had to travel further to reach their plane.
An improvement in the landing field was the introduction of grooves in the concrete surface. These run perpendicular to the direction of the landing aircraft and serve to draw off excess rainwater that could build up in front of the plane's wheels.
Airport construction boomed during the 1960s with the increase in jet aircraft traffic. Runways were extended out to 3,000m (9,800ft). The fields were constructed out of reinforced concrete using a slip-form machine that produces a continuous slab with no disruptions along the length. The early 1960s also saw the introduction of jet bridge systems to modern airport terminals, an innovation which eliminated outdoor passenger boarding. These systems became commonplace in the United States by the 1970s.[citation needed]
The malicious use of UAVs has led to the deployment of counter unmanned air system (C-UAS) technologies such as the Aaronia AARTOS which have been installed on major international airports.[58][59]
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 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)[60] which is published by Airservices Australia, a government owned corporation charged with managing Australian ATC.
Brazil
Infraero is responsible for the airports in Brazil
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.
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.
Atatürk Airport is an airport currently in use for private jets. It used to be the primary international airport of Istanbul and the hub of Turkish Airlines until it was closed to commercial passenger flights on 6 April 2019. From that point, all passenger flights were transferred to the new Istanbul Airport. All freight operations subsequently relocated as well by 5 February 2022 after which the airport continued to serve general aviation until its final closure.
Ernesto Cortissoz International Airport is an international airport serving the area of Barranquilla, the capital city of the Atlántico department in Colombia. The airport is located in the suburban municipality of Soledad. It owes its name to one of the pioneers of Colombian aviation, Ernesto Cortissoz.
Stockholm Arlanda Airport is an international airport located in the Sigtuna Municipality of Sweden, near the town of Märsta, 37 kilometres (23 mi) north of Stockholm and nearly 40 kilometres (25 mi) south-east of Uppsala. The airport is located within Stockholm County and the province of Uppland. It is the largest airport in Sweden and the third-largest airport in the Nordic countries. The airport is the major gateway to international air travel for large parts of Sweden. Arlanda Airport was used by nearly 27 million passengers in 2017, with 21.2 million international passengers and 5.5 million domestic. The facility covers an expanse of about 2,500 hectares (9.7 sq mi) of airport property.
John Wayne Airport is an international commercial and general aviation airport that serves Orange County, California, and the Greater Los Angeles area. The airport is located in an unincorporated area of Orange County, and it is owned and operated by the county. John Wayne Airport is surrounded by the cities of Irvine, Newport Beach, and Costa Mesa, although its IATA airport code and mailing address are both registered to Santa Ana, the county seat. Originally named Orange County Airport, the Orange County Board of Supervisors renamed the airport in 1979 in honor of actor John Wayne, who lived in neighboring Newport Beach and died that year. A statue of John Wayne was installed at the airline terminal in 1982.
Birmingham–Shuttlesworth International Airport, formerly Birmingham Municipal Airport and later Birmingham International Airport, is a civil-military airport serving Birmingham, Alabama. The airport also provides scheduled airline service for the Birmingham and Tuscaloosa metropolitan areas. It is located in Jefferson County, five miles northeast of Downtown Birmingham, near the interchange of Interstates 20 and 59.
Kalamazoo/Battle Creek International Airport is a county-owned public airport in Kalamazoo, Kalamazoo County, Michigan, US, 3 miles (4.8 km) southeast of Downtown Kalamazoo. The airport is located approximately 20 miles (32 km) west of the city of Battle Creek. It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2023-27, in which it is categorized as a non-hub primary commercial service facility.
Frederick Douglass - Greater Rochester International Airport is a public airport located within the City of Rochester, three miles (4.8 km) southwest of Downtown, in Monroe County, New York, United States. It is owned and operated by Monroe County. The airport is home to the 642nd Aviation Support Battalion, part of the 42nd Infantry Division.
Thiruvananthapuram International Airport, is an international airport that serves Thiruvananthapuram, the capital city of Kerala, India. Established in 1932, it is the first airport in the state of Kerala and the fifth international airport of India, officially declared in 1991. It is the operating base of Air India, Air India Express, IndiGo and SpiceJet. Spread over an area of 700 acres (280 ha), the airport is approximately 3.7 km (2.3 mi) due west from the city centre and the Padmanabhaswamy Temple, 16 km (9.9 mi) from Kovalam beach, 13 km (8.1 mi) from Technopark and 21 km (13 mi) from the under-construction Vizhinjam International Seaport. It shares a visible proximity to Shankumugham Beach making it the nearest airport to the sea in India, just about 0.6 miles away from the sea.
Victoria International Airport serves Victoria, British Columbia, Canada. It is 12 nautical miles north northwest of Victoria on the Saanich Peninsula, with the bulk of the airport in North Saanich, and a small portion of the airfield extending into Sidney. The airport is run by the Victoria Airport Authority. YYJ has many nonstop daily flights to Vancouver International Airport, which is a major airport serving many global routes. Additionally, Victoria International has nonstop service to Seattle (SEA), Toronto (YYZ), Montreal, Calgary (YYC), Edmonton (YEG), and several smaller cities in British Columbia and Yukon. The airport also has seasonal nonstop service to several Mexican resort destinations. Non-stop service between Victoria and the United States decreased by 50% at the beginning of September 2019 when Delta Airlines permanently ended its three daily flights to Seattle, after which only Alaska Airlines continued to fly the route.
Tri-Cities Airport is a public airport in the northwest United States in Franklin County, Washington. Located two miles (3 km) northwest of Pasco, it serves the Tri-Cities metropolitan area in southeast Washington, and is the third largest commercial airport in the state. The facility has three runways and covers 2,235 acres.
Shah Amanat International Airport, Chattogram is an international airport serving Bangladesh's southeastern port city of Chittagong. Operated and maintained by the Civil Aviation Authority of Bangladesh, it is the second-largest international airport in Bangladesh after Shahjalal International Airport in Dhaka, Bangladesh. It is used by the Bangladesh Air Force as a part of 'BAF Zahurul Haq Base'. It was formerly known as MA Hannan International Airport, named after Awami League politician M. A. Hannan, but was renamed on 2 April 2005 by the Government of Bangladesh, after an 18th-century Islamic saint, Shah Amanat. It is capable of annually handling 1.5 million passengers and 6,000 tonnes of cargo. It also serves as a base for the Arirang Flying School.
Boryspil International Airport is an international airport in Boryspil, 29 km (18 mi) east of Kyiv, the capital of Ukraine. It is Ukraine's largest airport, serving 65% of its passenger air traffic, including all its intercontinental flights and a majority of international flights. It is one of two passenger airports that serve Kyiv along with the smaller Zhuliany Airport. Boryspil International Airport was a member of Airports Council International. Since 24 February 2022, the airport does not operate any scheduled, charter or cargo flights due to the Russian invasion of Ukraine.
Kuching International Airport (KIA) is an international airport serving the entire southwestern region of Sarawak, Malaysia. It is located 11 km (6.8 mi) south of Kuching city centre. The airport is colocated with the RMAF Kuching, home to the No. 7 Squadron RMAF.
The Airports Authority of India (AAI) is a statutory body under the ownership of the Ministry of Civil Aviation, Government of India. It is responsible for creating, upgrading, maintaining, and managing civil aviation infrastructure in India. It provides Communication Navigation Surveillance/Air Traffic Management (CNS/ATM) services over the Indian airspace and adjoining oceanic areas. AAI currently manages a total of 137 airports, including 34 international airports, 10 Customs Airports, 81 domestic airports, and 23 Civil enclaves at Defence airfields. AAI also has ground installations at all airports and 25 other locations to ensure the safety of aircraft operations. AAI covers all major air routes over the Indian landmass via 29 Radar installations at 11 locations along with 700 VOR/DVOR installations co-located with Distance Measuring Equipment (DME). 52 runways are provided with Instrument landing system (ILS) installations with Night Landing Facilities at most of these airports and an Automatic Message Switching System at 15 Airports.
Invercargill Airport is a fully secured controlled international designated airport located 1.6 km west of the Central business district of Invercargill at the bottom of the South Island of New Zealand. It is the southernmost controlled airport in the Commonwealth. Formed on land reclaimed from the Waihopai/New River Estuary in 1938, the airport was prone to flooding, notably in 1984 when it was inoperable for two months. The Invercargill City Council considered moving the airport back to Dawson Farm, Myross Bush, the original site up to 1942. Instead, a large flood protection scheme was built, but during its construction heavy rain and an unusually high tidal surge flooded it again in 1987. There have been no problems since. The airport has a main secured terminal, a backup international secured terminal and 5 tarmac gates. Invercargill is the eleventh-busiest airport in New Zealand by passenger traffic.
Mandalay International Airport, located 35 km south of Mandalay in Tada-U, is one of three international airports in Myanmar. Completed in 1999, it replaced the old Mandalay Chanmyathazi Airport as the city's main airport and it was the largest and most modern airport in the country until the modernization of Yangon International Airport in 2008. The airport connects 11 domestic and seven international destinations. Its 4,267 m (13,999 ft) runway is the longest runway in use in Southeast Asia and has the capacity to handle up to 3 million passengers a year.
Moree Airport is an airport in Moree, New South Wales, Australia. The airport is 5 km (3.1 mi) from the city center. The airport has some scheduled services but mainly provides general aviation facilities, maintenance and support for agricultural aviation in the local area. The Moree Aero Club has been based at the airport since 1952, and today provides aircraft hire and flight training. The club was instrumental in providing many early improvements to the aerodrome facilities, including hangars and a terminal building. In the 2021-22 Financial Year, Moree Airport handled 18,073 passengers, down from approximately 35,000 per year before travel restrictions were introduced as a result of the response to the COVID-19 pandemic.
Mallam Aminu Kano International Airport is an international airport serving Kano, the capital city of Kano State of Nigeria. It was a Royal Air Force station before the country became independent. It is the main airport serving northern Nigeria and was named after politician Aminu Kano. The airport has an international and a domestic terminal. Construction started on a new domestic terminal and was commissioned on 23 May 2011. In 2009, the airport handled 323,482 passengers. The bulk of international flights cater to the large Sudanese community in Kano and Muslim pilgrimages to Mecca.
Beirut–Rafic Hariri International Airport (Arabic: مطار رفيق الحريري الدولي بيروت, is the only operational commercial airport in Lebanon. It is located in the Southern Suburbs of Beirut, Lebanon, 9 kilometres from the city center. The airport is the hub for Lebanon's national carrier, Middle East Airlines and was the hub for the Lebanese cargo carrier TMA cargo and Wings of Lebanon before their respective collapses.
Changi Airport is Singapore's primary international airport and a major aviation hub in the Asia-Pacific region. It is one of the commercial airports in Singapore, the other being Seletar Airport. Since the rankings for the World's Best Airport by Skytrax began in 1999, the airport was classified as the world's best twelve times, including for eight consecutive years from 2013 to 2021.
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