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77-397: Atatürk Airport ( IATA : ISL , ICAO : LTBA ) 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 . In 1911, a small apron with two hangars

154-509: A building at an airport where passengers transfer between ground transportation and the facilities that allow them to board and disembark from an aircraft . The buildings that provide access to the airplanes (via gates ) are typically called concourses . However, the terms "terminal" and "concourse" are sometimes used interchangeably, depending on the configuration of the airport. Smaller airports have one terminal while larger airports have several terminals and/or concourses. At small airports,

231-522: A large building with the attached ancillaries for planes (the central building was intended not for the passengers, but for a dirigible ). The predecessors of the modern terminals were the structures erected for the air shows of the Edwardian era (for example, the Reims Air Meet in 1909). These buildings usually were L-shaped , with one wing dedicated to the planes and flight personnel, and

308-567: A new airport is built, replacing the old one, leaving the city's new "major" airport (or the only remaining airport) code to no longer correspond with the city's name. The original airport in Nashville, Tennessee, was built in 1936 as part of the Works Progress Administration and called Berry Field with the designation, BNA. A new facility known as Nashville International Airport was built in 1987 but still uses BNA. This

385-498: A passenger building flanked by hangars into the corner of an airfield. This design influenced the Tempelhof, arguably the seminal design in the history or airports: the original Modernist terminal by Paul and Klaus Englers of 1926-1929 was placed into the center of the field, thus defied the need for expansion, and had to be replaced by the new building in the late 1930s (architect Ernst Sagebiel ). Hounslow (now Heathrow airport )

462-501: A satellite terminal was London Gatwick Airport . It used an underground pedestrian tunnel to connect the satellite to the main terminal. Passengers are sometimes ferried to the satellite terminals by people movers , trains, or overhead bridges. The layout has the potential to cut the walking distances and was successfully applied in the Orlando International Airport and Tampa International Airport . However,

539-496: A single large building, like the one at the Ford Dearborn Airport (1925–1926). Dedicated passenger building started to appear. In Europe, Le Bourget got new buildings in classical style arranged in very non-airport-like manner around a central garden in the early 1920s. The "air station" of Königsberg Devau (1922) was probably the first design resembling the modern ones: Hanns Hopp , a German architect, placed

616-517: A single terminal building typically serves all of the functions of a terminal and a concourse. Larger airports might have one terminal that is connected to multiple concourses or multiple unit terminals . By the end of the 20th century airport terminals became symbols of progress and trade, showcasing the aspirations of nations constructing them. The buildings are also characterized by a very rapid pace of redevelopment, much higher that that for structures supporting other modes of transportation, eroding

693-400: A source, destination, and transit point. Both airports were used in parallel for five months from late 2018, with the new airport gradually expanding to serve more domestic and regional destinations. On 6 April 2019, Atatürk's IST IATA airport code was inherited by Istanbul Airport and Atatürk Airport was assigned the code ISL after the full transfer of all scheduled passenger activities to

770-469: A wide range of airside facilities such as shops and restaurants, 34 gates equipped with jet bridges, and 7 bus-boarding stands. The arrivals floor had 11 baggage claim belts. In addition, there is a general aviation terminal to the northwest of the passenger terminals. The airport featured a dedicated cargo terminal including facilities for the handling of radioactive and refrigerated freight. As of April 2019, all passenger operations have been relocated to

847-509: Is GSN and its IATA code is SPN, and some coincide with IATA codes of non-U.S. airports. Canada's unusual codes—which bear little to no similarity with any conventional abbreviation to the city's name—such as YUL in Montréal , and YYZ in Toronto , originated from the two-letter codes used to identify weather reporting stations in the 1930s. The letters preceding the two-letter code follow

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924-569: Is a lack of any provision for transfer flights, with passengers only able to transit landside. Hybrid layouts also exist. San Francisco International Airport and Melbourne Airport use a hybrid pier-semicircular layout and a pier layout for the rest. Chris Blow lists the following standard options of using multiple levels in the airport terminals: A common-use facility or terminal design disallows airlines to have its own proprietary check-in counters, gates and IT systems. Rather, check-in counters and gates can be flexibly reassigned as needed. This

1001-617: Is available. However, many railway administrations have their own list of codes for their stations, such as the list of Amtrak station codes . Airport codes arose out of the convenience that the practice brought pilots for location identification in the 1930s. Initially, pilots in the United States used the two-letter code from the National Weather Service (NWS) for identifying cities. This system became unmanageable for cities and towns without an NWS identifier, and

1078-523: Is different from the name in English, yet the airport code represents only the English name. Examples include: Due to scarcity of codes, some airports are given codes with letters not found in their names: The use of 'X' as a filler letter is a practice to create three-letter identifiers when more straightforward options were unavailable: Some airports in the United States retained their NWS ( National Weather Service ) codes and simply appended an X at

1155-671: Is governed by IATA Resolution 763, and it is administered by the IATA's headquarters in Montreal , Canada. The codes are published semi-annually in the IATA Airline Coding Directory. IATA provides codes for airport handling entities, and for certain railway stations. Alphabetical lists of airports sorted by IATA code are available. A list of railway station codes , shared in agreements between airlines and rail lines such as Amtrak , SNCF , and Deutsche Bahn ,

1232-513: Is in conjunction to rules aimed to avoid confusion that seem to apply in the United States, which state that "the first and second letters or second and third letters of an identifier may not be duplicated with less than 200 nautical miles separation." Thus, Washington, D.C. area's three airports all have radically different codes: IAD for Washington–Dulles , DCA for Washington–Reagan (District of Columbia Airport), and BWI for Baltimore (Baltimore–Washington International, formerly BAL). Since HOU

1309-543: Is not followed outside the United States: In addition, since three letter codes starting with Q are widely used in radio communication, cities whose name begins with "Q" also had to find alternate codes, as in the case of: IATA codes should not be confused with the FAA identifiers of U.S. airports. Most FAA identifiers agree with the corresponding IATA codes, but some do not, such as Saipan , whose FAA identifier

1386-405: Is the main opportunity within the airport for architects to express themselves and a key element of the airport design. Brian Edwards compares the architectural role of the terminal in the airport to the one of a mall within a small town. Historically, airports were built in a variety of architectural styles , with the selection depending on the country: The concrete boxes of terminals built in

1463-581: Is used at Boston Logan International Airport 's Terminal E. This table below lists the top airport terminals throughout the world with the largest amount of floor area, with usable floor space across multiple stories of at least 400,000 m (4,300,000 sq ft). Many small and mid-size airports have a single, two, or three-lane one-way loop road which is used by local private vehicles and buses to drop off and pick up passengers. A large hub airport often has two grade-separated one-way loop roads , one for departures and one for arrivals. It may have

1540-416: Is used for William P. Hobby Airport , the new Houston–Intercontinental became IAH. The code BKK was originally assigned to Bangkok–Don Mueang and was later transferred to Suvarnabhumi Airport , while the former adopted DMK. The code ISK was originally assigned to Gandhinagar Airport (Nashik's old airport) and later on transferred to Ozar Airport (Nashik's current airport). Shanghai–Hongqiao retained

1617-571: The Canadian transcontinental railroads were built, each station was assigned its own two-letter Morse code : When the Canadian government established airports, it used the existing railway codes for them as well. If the airport had a weather station, authorities added a "Y" to the front of the code, meaning "Yes" to indicate it had a weather station or some other letter to indicate it did not. When international codes were created in cooperation with

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1694-548: The Turkish Air Force (which still maintains a small training base and museum here). The leader of the Republican People's Party (CHP) Kemal Kılıçdaroğlu called the proposed construction of the park '' treason '' and threatened to hold those responsible to account. Istanbul Atatürk Airport featured two passenger terminals linked to each other. The former domestic terminal is the older and smaller of

1771-482: The interwar period in the major transportation nodes (London, Paris, Berlin) were converted military airfields ( London Terminal Aerodrome , Croydon Aerodrome , Great West Aerodrome , Le Bourget , Tempelhof ) and lacked the spaces for the actual passengers. US, on the other hand, lacked the war infrastructure and had to build the airports from scratch, mostly following the "hangar-depot" building type where, staff, passengers, and airplanes were all accommodated inside

1848-404: The 1960s and 1970s generally gave way to glass boxes in the 1990s and 2000s, with the best terminals making a vague stab at incorporating ideas of "light" and "air"'. However, some, such as Baghdad International Airport and Denver International Airport, are monumental in stature, while others are considered architectural masterpieces, such as Terminal 1 at Charles de Gaulle Airport , near Paris ,

1925-454: The U.S. For example, several airports in Alaska have scheduled commercial service, such as Stebbins and Nanwalek , which use FAA codes instead of ICAO codes. Thus, neither system completely includes all airports with scheduled service. Some airports are identified in colloquial speech by their IATA code. Examples include LAX and JFK . Airport terminal An airport terminal is

2002-481: The United States, because "Y" was seldom used in the United States, Canada simply used the weather station codes for its airports, changing the "Y" to a "Z" if it conflicted with an airport code already in use. The result is that most major Canadian airport codes start with "Y" followed by two letters in the city's name (for example, YOW for O tta w a , YWG for W innipe g , YYC for C algar y , or YVR for V ancouve r ), whereas other Canadian airports append

2079-474: The airfield. For example, Air France checked in passengers at the Invalides Air Terminal ( Aérogare des Invalides ) from 1946 to 1961, when all passengers started checking in at the airport. The Air Terminal continued in service as the boarding point for airline buses until 2016. Chicago's O'Hare International Airport 's innovative design pioneered concepts such as direct highway access to

2156-440: The airport itself instead of the city it serves, while another code is reserved which refers to the city itself which can be used to search for flights to any of its airports. For instance: Or using a code for the city in one of the major airports and then assigning another code to another airport: When different cities with the same name each have an airport, they need to be assigned different codes. Examples include: Sometimes,

2233-426: The airport terminal." The first airfields, built in the early 20th century, did not have passengers and thus did not need the terminals. Large facilities were built, however, to house the fragile and inventive airships of the time protecting them from elements and industrial spies . Still, some of the concept architectural designs resembled the modern terminal buildings: Erich Mendelsohn ’s sketch (1914) contained

2310-418: The airport's former name, such as Orlando International Airport 's MCO (for Mc C o y Air Force Base), or Chicago's O'Hare International Airport , which is coded ORD for its original name: Or char d Field. In rare cases, the code comes from the airport's unofficial name, such as Kahului Airport 's OGG (for local aviation pioneer Jimmy H ogg ). In large metropolitan areas, airport codes are often named after

2387-467: The airport, concourses, and jetbridges ; these designs are now seen at most airports worldwide. When London Stansted Airport's new terminal opened in 1991, it marked a shift in airport terminal design since Norman Foster placed the baggage handling system in the basement in order to create a vast open interior space. Airport architects have followed this model since unobstructed sightlines aid with passenger orientation. In some cases, architects design

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2464-465: The arrangement is prone to slowing down the embarkation and disembarkation as well as accidental damage to the planes. A particularly unusual design was employed at Berlin Tegel Airport 's Terminal A. Consisting of an hexagonal-shaped ring around a courtyard, five of the outer walls were airside and fitted with jet bridges, while the sixth (forming the entrance), along with the inner courtyard,

2541-590: The boundary between the permanent and temporary construction. An airport might have multiple separate "unit terminals", in order, for example to separate the international travel from the domestic one, or provide the separate airlines with the ability to offer their own terminals. The unit terminals might use similar design ( Dallas-Fort Worth Airport ) or be completely different ( Pearson International Airport ). Use of multiple terminals typically requires an extensive network of automatic people movers . Terminals perform three main functions: Just like entire airports,

2618-402: The building beyond the scope of the original needs. The original Le Bourget design was corrected by Georges Labro  [ fr ] in 1936–1937, with the new Modernist single-terminal layout following ideas of not-yet-unfinished Tempelhof (but without covered access to the planes) and Croydon. New York's LaGuardia Airport ( Delano and Aldrich , 1939) contained many features common in

2695-596: The check-in counter to the gate (up to half a mile in the cases of Kansai International Airport or Lisbon Portela Airport 's Terminal 1). Most large international airports have piers, O'Hare Airport in Chicago and Hartsfield Airport in Atlanta were able to process 45 million passengers per year using this layout in the 1970s. Remote pier layout consist of multiple concourses that are connected by automatic people movers located underground or overhead. Once arrived on

2772-502: The code SHA, while the newer Shanghai–Pudong adopted PVG. The opposite was true for Berlin : the airport Berlin–Tegel used the code TXL, while its smaller counterpart Berlin–Schönefeld used SXF; the Berlin Brandenburg Airport has the airport code BER, which is also part of its branding. The airports of Hamburg (HAM) and Hannover (HAJ) are less than 100 nautical miles (190 km) apart and therefore share

2849-523: The concourse, passengers get on the planes as usual. This layout, after its first appearance at Hartsfield, was used at Stansted Airport in UK and, with an adequate people-moving system, is considered to be very efficient for the airport hubs with high percentage of transfer passengers. A satellite terminal is a round- or star-shaped building detached from other airport buildings, so that aircraft can park around its entire circumference. The first airport to use

2926-413: The convex side and cars on the other. This design still requires long walks for connecting passengers, but greatly reduces travel times between check-in and the aircraft. A pier design uses a small, narrow building with aircraft parked on both sides. One end connects to a ticketing and baggage claim area. Piers offer high aircraft capacity and simplicity of design, but often result in a long distance from

3003-475: The courtyard on the same level, where short-stay parking and taxi-pickup were located. Vehicles could enter and exit via a road underpass underneath the terminal building entrance. For flights using jet-bridges and passengers arriving or leaving by private transport, this resulted in extremely short walking distances of just a few tens of metres between vehicles and the plane, with only a slightly longer walk for public transport connections. A downside of this design

3080-934: The end. Examples include: A lot of minor airfields without scheduled passenger traffic have ICAO codes but not IATA codes, since the four letter codes allow more number of codes, and IATA codes are mainly used for passenger services such as tickets, and ICAO codes by pilots. In the US, such airfields use FAA codes instead of ICAO. There are airports with scheduled service for which there are ICAO codes but not IATA codes, such as Nkhotakota Airport/Tangole Airport in Malawi or Chōfu Airport in Tokyo, Japan. There are also several minor airports in Russia (e.g., Omsukchan Airport ) which lack IATA codes and instead use internal Russian codes for booking. Flights to these airports cannot be booked through

3157-472: The entrance/exit of each jet bridge lied at the boundary of the two areas. Two or three passport control booths were located close to the end of the jet bridge for arriving passengers (causing passengers to queue into the bridge and plane itself) and passengers left the arrivals area unsegregated from departing passengers into the same landside ring-concourse, emerging next to the check-in desks. This allowed both arriving and departing passengers immediate access to

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3234-417: The excessive area of airport apron required and difficult remodeling for new aircraft designs had reduced its popularity. Los Angeles International Airport , in particular, switched from satellite terminals to pier layout in the 1980s. Idea of a large airport using specially build vehicles to connect the passengers to the planes was driven by the desire to reduce time spent by the planes getting to and from

3311-520: The first plane hijacking occurred in the 1931 (in Peru ). The 1960s brought the waves of terrorism and the tight security based on the ICAO recommendations. By the 1990s both passengers and luggage were routinely screened for weapons and explosive devices. The old floorplans of terminals were frequently inadequate (and structures not strong enough to carry the weight of the new equipment), so extensive redesign

3388-557: The first three letters of the city in which it is located, for instance: The code may also be a combination of the letters in its name, such as: Sometimes the airport code reflects pronunciation, rather than spelling, namely: For many reasons, some airport codes do not fit the normal scheme described above. Some airports, for example, cross several municipalities or regions, and therefore, use codes derived from some of their letters, resulting in: Other airports—particularly those serving cities with multiple airports—have codes derived from

3465-478: The following format: Most large airports in Canada have codes that begin with the letter "Y", although not all "Y" codes are Canadian (for example, YUM for Yuma, Arizona , and YNT for Yantai , China), and not all Canadian airports start with the letter "Y" (for example, ZBF for Bathurst, New Brunswick ). Many Canadian airports have a code that starts with W, X or Z, but none of these are major airports. When

3542-597: The form of " YYZ ", a song by the rock band Rush , which utilizes the Morse code signal as a musical motif. Some airports have started using their IATA codes as brand names , such as Calgary International Airport (YYC) and Vancouver International Airport (YVR). Numerous New Zealand airports use codes that contain the letter Z, to distinguish them from similar airport names in other countries. Examples include HLZ for Hamilton , ZQN for Queenstown , and WSZ for Westport . Predominantly, airport codes are named after

3619-467: The gate of the flight they serve. Checked-in passengers then entered airside via a short passage situated immediately to the side of the check-in desk, passed (for non-Schengen flights) a single passport control booth (with officers sat in the same area as check-in staff), followed by a single security lane which terminated at the gate's waiting area behind. Pairs of gates shared the same seating area, with small kiosks for duty-free and refreshments making up

3696-487: The international air booking systems or have international luggage transferred there, and thus, they are booked instead through the airline or a domestic booking system. Several heliports in Greenland have 3-letter codes used internally which might be IATA codes for airports in faraway countries. There are several airports with scheduled service that have not been assigned ICAO codes that do have IATA codes, especially in

3773-594: The lack of separation between the boarding and deplaning passengers). The movable covered ways (precursors of the modern jet bridges ) were experimented with in the 1930s. The Boeing 's United Airport in Burbank, California featured retractable canopies already in the 1930. The tubes first appeared in the 1936 terminal at the London South Airport . The circular terminal design included six telescopic rectangular in section tubes for passengers, moving over

3850-817: The main terminal at Washington Dulles in Virginia , or the TWA Flight Center at New York's JFK Airport. A few are designed to reflect the culture of a particular area, some examples being the terminal at Albuquerque International Sunport in New Mexico , which is designed in the Pueblo Revival style popularized by architect John Gaw Meem , as well as the terminal at Bahías de Huatulco International Airport in Huatulco , Oaxaca , Mexico, which features some palapas that are interconnected to form

3927-432: The modern designs: two-level layout for separation between departing and arriving passengers, "spine" concourse extending to the both sides of the building, "dispatcher booths" as precursors to the airport gates . Tempelhof faced a contemporary critique for its cantilevered roofs intended to protect the planes and passengers − but wasteful in terms of construction and limiting the future aircraft designs (in addition to

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4004-612: The name of the airport itself, for instance: This is also true with some cities with a single airport (even if there is more than one airport in the metropolitan area of said city), such as BDL for Hartford, Connecticut 's B ra dl ey International Airport or Baltimore's BWI, for B altimore/ W ashington I nternational Airport ; however, the latter also serves Washington, D.C. , alongside Dulles International Airport (IAD, for I nternational A irport D ulles) and Ronald Reagan Washington National Airport (DCA, for D istrict of C olumbia A irport). The code also sometimes comes from

4081-526: The new Istanbul Airport . As of February 2022, all cargo operations have been relocated to the new airport as well. Currently, the airport serves only private and business jets as well as operations on behalf of the Government of Turkey . Istanbul Atatürk Airport ranked 17th in ACI statistics at the end of 2011 in terms of international traffic with almost 24 million international passengers. It ranked 29th in

4158-459: The new Istanbul Airport) in 2019. The park is part of a larger urban transformation plan that seeks to correct some of the haphazard urban planning that characterised most major Turkish cities since the 1970s. Due to the little space available to construct or expand green spaces, new parks are often constructed on spots formerly occupied by factories or other major facilities. The Atatürk Airport National Garden will be constructed on and around one of

4235-459: The new airport was completed. The final commercial flight, Turkish Airlines Flight 54, left Atatürk Airport on 6 April 2019 at 02:44 for Singapore . On 5 February 2022, Turkish Cargo relocated all cargo flights and operations from their former hub at the airport to the new Istanbul Airport . Turkey's government announced its plans to construct a giant park on the grounds of the former Istanbul Atatürk Airport (whose operations were transferred to

4312-416: The one they are located in: Other airport codes are of obscure origin, and each has its own peculiarities: In Asia, codes that do not correspond with their city's names include Niigata 's KIJ , Nanchang 's KHN and Pyongyang 's FNJ . EuroAirport Basel Mulhouse Freiburg , which serves three countries, has three airport codes: BSL, MLH, EAP. Some cities have a name in their respective language which

4389-405: The only airside commercial offerings. Thus, other than the adjacent gate, passengers could not move around the terminal airside and there was no central waiting lounge and retail area for departures. Individual rooms for arrivals, likewise serving a pair of gates, each contained a single baggage carousel and were alternately situated in between each pair of departure gates on the same level, such that

4466-512: The other intended for the spectators, with a grandstand and restaurants in an arrangement similar to the one used for the racetracks . The shows also featured occasional passenger flights. The other template of a terminal was provided by the first airline, the German DELAG that featured sheds for Zeppelins combined with passenger spaces close to the centers of cities, like the railroad stations. The first European passenger airports of

4543-754: The rails. The terminal at London South (now known as Gatwick Airport ) also featured the first direct rail link connection (to the London Victoria Station ). The rail ticket was included with the airfare . The system for early separation of departing passengers from their luggage (check-in desk) was introduced in the Speke Airport in Liverpool (1937–1938). It remains a key element of design of most passenger terminals ever since. Some airlines checked in their passengers at downtown terminals, and had their own transportation facilities to

4620-506: The same first and middle letters, indicating that this rule might be followed only in Germany. Many cities retain historical names in their airport codes, even after having undergone an official name/spelling/transliteration change: Some airport codes are based on previous names associated with a present airport, often with a military heritage. These include: Some airports are named for an administrative division or nearby city, rather than

4697-500: The station code of Malton, Mississauga , where it is located). YUL is used for Montréal–Trudeau (UL was the ID code for the beacon in the city of Kirkland , now the location of Montréal–Trudeau). While these codes make it difficult for the public to associate them with a particular Canadian city, some codes have become popular in usage despite their cryptic nature, particularly at the largest airports. Toronto's code has entered pop culture in

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4774-433: The terminal architecture. The functions that are performed on the landside, like ticketing and check-in, are relatively stable, while the airside is subject to rapid technological and operational changes. Victor Marquez suggests that the boundary is not really an integral part of the airport functions, but a "socio-technical construct" that has gradually shaped the thinking of architects and planners. The passenger terminal

4851-570: The terminal dates to 1960s. The bodies of the so-called mobile lounges can be raised to match the height of the terminal and airplane exit doors (much earlier designs used regular apron buses , for example, in the Milan's Linate Airport , but the passengers in this case had to climb up and down the airstairs ). While used in the Washington Dulles International Airport and King Abdulaziz International Airport ,

4928-404: The terminal's ceiling and flooring with cues that suggest the required directional flow. For instance, at Toronto Pearson's Terminal 1 Moshe Safdie included skylights for wayfinding purposes. Originally, the airport terminals were secured the same way as the rail stations, with local police guarding against the common crimes, like pickpocketing. The industry-specific crimes were rare, although

5005-410: The terminals are divided into landside and airside zones. Typically passengers and staff must be checked by airport security , and/or customs / 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. The landside-airside boundary became the defining element of

5082-442: The terminals switch to the "linear" layout, where the planes are located next to an elongated building and passengers use jet bridges to walk on board. The design places limit on the number of gates, as the walkability requirement dictates the total length of the building (including the "spine" concourses) to be less than 1 ⁄ 2 mile. Some airports use a linear structure bent into a semicircular shape, with aircraft parked on

5159-427: The two runways of Atatürk Airport. These runways were already rendered unusable after they were chosen as the site for Istanbul's pandemic hospital in early 2020. More than 132,500 trees are to be planted in place of the asphalt runway and taxiways that will also help to keep the city cooler. The other runway is set to remain in use for select cargo and private jet flights, aviation fairs (such as Teknofest) and for use by

5236-465: The two terminals and exclusively handled domestic flights within Turkey. It featured its own check-in and airside facilities on the upper floor, with twelve departure gates equipped with jet bridges and five baggage claim belts on the ground level. The former international terminal was inaugurated in 2000 and used for all international flights. It featured a large main hall containing 8 check-in aisles and

5313-515: The two-letter code of the radio beacons that were the closest to the actual airport, such as YQX in Gander or YXS in Prince George . Four of the ten provincial capital airports in Canada have ended up with codes beginning with YY, including: Canada's largest airport is YYZ for Toronto Pearson (as YTZ was already allocated to Billy Bishop Toronto City Airport , the airport was given

5390-529: The use of two letters allowed only a few hundred combinations; a three-letter system of airport codes was implemented. This system allowed for 17,576 permutations, assuming all letters can be used in conjunction with each other. Since the U.S. Navy reserved "N" codes, and to prevent confusion with Federal Communications Commission broadcast call signs , which begin with "W" or "K", the airports of certain U.S. cities whose name begins with one of these letters had to adopt "irregular" airport codes: This practice

5467-424: The world in terms of total passenger traffic with over 37.4 million passengers in 2011. Its total traffic within the last decade more than tripled, and its international traffic quadrupled. Passenger statistics for Istanbul Atatürk Airport for the years 2002–2019 are below. [REDACTED] Media related to Istanbul Atatürk Airport at Wikimedia Commons IATA airport code The assignment of these codes

5544-511: Was Europe 's 5th-busiest airport after London–Heathrow , Paris–Charles de Gaulle , Frankfurt Airport , and Amsterdam Airport Schiphol , having fallen from third place after a decline in passengers due to security fears. Istanbul Atatürk Airport was replaced in regards to commercial passenger functions by the newly constructed Istanbul Airport , in April 2019, in order to meet Istanbul's growing domestic and international air traffic demand as

5621-622: Was built in Yeşilköy, Istanbul, for the Ottoman Armed Forces. Mustafa Kemal Atatürk founded Türk Tayyare Cemiyeti (Turkish Aircraft Company, today Türk Hava Kurumu - THK ) in 1925. In 1933, today's Turkish Airlines , the Türkiye Devlet Hava Yolları started its flights with two Curtiss Kingbird aircraft. Flights from Istanbul to Ankara and Athens began. The small apron was expanded and a new passenger terminal

5698-415: Was built. This is considered the beginning of the airport's 86-year history. It was originally named Yeşilköy Airport . In the 1980s, it was renamed Atatürk International Airport . It served more than 60 million passengers in 2015, making it the 11th-busiest airport in the world in terms of total passenger traffic and the 10th-busiest in the world in terms of international passenger traffic. In 2017, it

5775-518: Was landside. Although superficially resembling a satellite design insofar as aircraft could park around most of the structure, it was in fact a self-contained terminal which unlike a satellite did not depend on remote buildings for facilities such as check-in, security controls, arrivals etc. Especially unique were its exceptionally short walking distances and lack of any central area for security, passport control, arrivals or transfer. Instead, individual check-in counters are located immediately in front of

5852-550: Was processing the passengers through a reused aircraft hangar, and a new classical terminal was built in Croydon in 1928. In the US, by 1931 the first airport in Chicago (now Midway Airport ) had its own Art Deco terminal building. Sagebiel's Tempelhof had an appearance of a major railway terminus and housed, like many other European airports, great restaurants. The design survived for more than 60 years, highly unusual for an airport due to Sagebiel being prescient and oversizing

5929-618: Was required. Passenger garages integrated into the terminals were moved out to reduce the potential effects of the car bombs . Time spent by passengers at the airports greatly increased, causing the need for additional space. Early airport terminals opened directly onto the tarmac : passengers would simply walk to their aircraft, a so-called " open apron " layout. This simple design is still common among smaller airports. For larger airports, like Kansas City International Airport , Munich Airport and Charles de Gaulle Airport , allowing many passenger to walk across tarmac becomes unfeasible, so

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