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68-458: Hamad International Airport ( IATA : DOH , ICAO : OTHH ) ( Arabic : مطار حمد الدولي , Maṭār Ḥamad al-Duwalī ) is an international airport in Qatar , and the home base of the national flag carrier airline, Qatar Airways . Located east of the capital, Doha , it replaced the nearby Doha International Airport as Qatar's principal and main national airport and one of the busiest airports in

136-592: A 1.3 km long concourse, and a new passenger amenity area in the D/E complex with lounges, shops and restaurants. As part of this expansion plan, the Doha Metro was extended to the airport with the opening of the red line airport branch in December 2019. In 2016, the airport was named the 50th busiest airport in the world by passenger traffic , serving 37,283,987 passengers, a 20.2% increase from 2015. In 2019,

204-514: A 10,000 square metres (110,000 sq ft) tropical garden with a 268 meters (879 ft) tall water feature opened, bearing extreme similarities to the Singapore Changi Airport 's Jewel structure that was designed and built four years prior. The project adds 11,720 square metres (126,200 sq ft) of retail and F&B space, and an expanded transfer area. A new Qatar Airways Al Mourjan Business Class Lounge occupies

272-663: A Single Project", a milestone for large-scale transport projects in Qatar and across the region. With this recognition, the company has broken the previous world record, which was 19 simultaneously operational TBMs. In 2017, Qatar Rail received the ITA Award from the International Tunneling and Underground Space Association for the Major Project of the year 2017. The Doha Metro project was nominated under

340-414: A cable-drawn Cable Liner has connected Halls A and B over a distance of around 500 m (1,600 ft) indoors with Halls D and E, with availability 24 hours a day. The most prominent figure inside the airport is a giant bronze statue of a teddy bear with its head in a lamp. The untitled sculpture, often known as "Lamp Bear", is one of three creations by Swiss artist Urs Fischer and is on display at

408-551: A decade of successful operations since its official inauguration in May 2014. Hamad International Airport finally began passenger operations on 30 April 2014, with ten initial airlines operating. Qatar Airways and remaining airlines started operations to Hamad Airport on 27 May 2014 at 09:00 (Qatar time). An expansion plan announced in September 2015 called for an extension of the check-in area, an expansion of concourses D and E into

476-493: 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

544-521: A lost time injury (LTI). The Metro System will be operated as a system with automatic train operation as Grade of Operation level 4 (GoA4). GoA4 is unattended train operation (UTO) where starting and stopping, operation of doors and handling of emergencies are fully automated without any on-train staff. The network has two classes of travel, standard and goldclub. Standard tickets cost 2 Qatari riyals per journey, while goldclub tickets cost 10 riyals per journey. There are three types of train car used on

612-567: 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

680-418: A safe working environment, far from the risks of injuries, including managing emergency cases and treating them swiftly. The safety & security program of Qatar's Railway focuses on the emergency planning and response on the railway network while taking into consideration the unique nature of mass transit systems when planning for and implementing the program. The transport policies, security models addressing

748-489: A strategic workshop on the safety, security, and resilience of the country's railway network in consultation with UK and Qatari experts. The company proposed its safety and security programme, along with its recommendations and a full roadmap towards the future operation stage of the railway. In June 2014, it was announced that the Doha Metro Green Line Project achieved 6 million work hours without

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816-509: 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

884-641: Is a rapid transit system in the Doha Metropolitan Area of Qatar 's capital city Doha , which became operational on 8 May 2019. It has three lines with an approximate overall length of 76 km (47 mi) and 37 stations. It is an integral component of the larger Qatar Rail network, which will include a long-distance rail for passengers and freight, linking Qatar to the GCC , and the Lusail LRT . Capable of reaching 100 km/h (62 mph),

952-575: Is considered to be the longest runway in Western Asia , and also one of the longest runways in the world. The second runway is 4,250 m × 60 m (13,940 ft × 200 ft). The following airlines operate regular scheduled and charter flights to and from Doha: Hamad International Airport is currently rated as the "World's Best Airport" and "Best Airport in the Middle East" by Skytrax . The airport has its own station on

1020-586: 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

1088-513: 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

1156-508: Is named after the previous Emir of Qatar , Hamad bin Khalifa Al Thani . By the end of the 20th century, Doha International Airport (DIA) was over 70 years old and in need of major upgrades. However, lack of available land meant DIA expansion would be difficult, especially the inability to add a much-needed second runway. The planning started for a new state-of-the-art airport in 2003 while the construction began in 2005. The site of

1224-543: 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

1292-416: 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

1360-571: 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

1428-582: The International Trade Union Confederation (ITUC), concluded that slave labour was significantly used in constructing Hamad International Airport. Concourses D and E are due to open in 2025 with a possible Concourse F although plans are still to be finalised. Terminal 1 features First (called Al Safwa First Class Lounge) and Business Class (called Al Mourjan Business Class Lounge) lounges, which were opened by Qatar Airways CEO, Akbar Al Baker, on 20 June 2014. Since 2016,

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1496-481: 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 the use of two letters allowed only

1564-508: The Doha Metro has one of the fastest driverless trains in the world. Doha Metro is operated and maintained for a duration of 20 years by RKH Qitarat, a joint venture formed by Hamad Group (51%) and French transit operators Keolis and RATP Dev (49%), on behalf of system owner Qatar Rail . In 2009, Qatari Diar and Deutsche Bahn signed a joint venture to develop a concept for a railway network in Qatar. In 2011, Qatar Rail became

1632-518: The Greater Doha area and will include connections to town centers and main commercial and residential areas throughout the city. In central Doha, the Metro will be underground, whilst on the outskirts it will mainly be at ground level or elevated. For the underground works, Qatar Railways Company (Qatar Rail) imported tunnel boring machines (TBMs). 21 TBMs were used to cut tunnels 20 meters beneath

1700-582: The Heart of Doha. Furthermore, it links to Umm Salal and the Industrial Area South. The Gold Line runs in an East-West direction and connects Airport City North via central Msheireb with Al Waab Street, Al Rayyan South and Salwa Road. Most stations will offer free feeder buses to places near the stations. Standard tickets cost 2 QAR each for one way, whilst 'gold club' tickets cost 10 QAR each. This will be updated when Qatar Rail has announced

1768-523: 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 , is available. However, many railway administrations have their own list of codes for their stations, such as

1836-441: The Middle East . Formerly known as New Doha International Airport (NDIA) during construction, Hamad International Airport was originally scheduled to open in 2008. After a series of costly delays, it finally opened six years overdue, on 30 April 2014, with a ceremonial Qatar Airways flight landing from nearby Doha International. Qatar Airways and all other carriers formally relocated to the new airport on 27 May 2014. The airport

1904-605: The Red Line of Doha Metro , connecting it directly with Downtown Doha. The passenger terminal is additionally connected to its nearby surroundings by four regional bus lines, of which one ( 757 ) also runs towards Downtown Doha. IATA airport code The assignment of these codes 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

1972-612: The Red and Green Lines. In mid-May Salini Impregilo was awarded to manage the construction of the Red Line North segment, running from Msheireb to Al Khor North. In June, it was revealed that QDVC and Porr were successful in their bids to lead the building of the Red Line South segment and Green Line, respectively. In May 2014 a consortium of Larsen & Toubro , Aktor, Yapi Merkezi , STFA Group and Al Jaber Engineering

2040-509: 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 . Doha Metro The Doha Metro ( Arabic : مترو الدوحة , romanized : Mitru ad-Dawha )

2108-481: 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

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2176-439: The airport (terminal and runway) lies 5 kilometres (3.1 mi) east of the older Doha International Airport. It is spread over an area of 3,600 hectares (9,000 acres), and was set to initially serve airlines that will not utilize lounge access. Hamad International Airport was designed to cater for a projected ongoing increase in the volume of traffic. The airport has an initial annual capacity of 29 million passengers, three times

2244-440: 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,

2312-526: The airport witnessed a 12.4% increase in annual passenger traffic. More than 38.8 million passengers arrived at the airport in 2019, up from 34.5 million in 2018. On 2 October 2020, a newborn was found abandoned in a bin. In response to this, the authorities ordered women of childbearing age from 10 different planes to disembark and undergo a forced vaginal examination. The Qatari Prime Minister issued an apology and ordered an investigation. The Australian government "registered its strong disapproval and outrage" at

2380-418: 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

2448-536: The architecture firm HOK . Engineering, Procurement and Construction contracts for Phase I and II were undertaken by Turkish TAV Construction and Japanese Taisei Corporation . Cargo operations began on 1 December 2013, with an inaugural flight by Qatar Airways Cargo arriving from Europe. The original soft launch on 2 April 2013 was cancelled just a few hours prior, and was postponed indefinitely due to unsatisfactory safety related issues that needed further reviewing taking nine months to address. Hamad International Airport

2516-450: The buildings have a water motif, with wave-styled roofs and desert plants growing in recycled water . The airport is built over 36 square kilometres (14 sq mi), half of which is on reclaimed land . The Steering Committee awarded the contract for the development of the airport to Bechtel . The contract includes the design, construction management and project management of the facilities. The terminal and concourses were designed by

2584-560: The case in April 2024, after finding that the searches did not happen on board a Qatar Airways aircraft nor were carried out by the airline's employees. Following ongoing backlash, in September 2023, Qatar Airways' senior vice-president of global sales Matt Raos asserted during an Australian Senate inquiry that the 2020 incident was "a one-off and an isolated incident". An investigation by the Human Rights Watch (HRW), as well as

2652-473: The category of "Projects exceeding 500 Million Euros" and won the award after being shortlisted with other three megaprojects from Canada, Iran and India. Computers, network infrastructure and other related equipment were provided by IBM , Lenovo , Hewlett-Packard , Siemens and Cisco Systems . Safety and security measures are applied throughout the drilling phase of the underground Doha Metro works. The planned procedures involve elements that can guarantee

2720-743: The city for the lines. Each of the TBMs for the Doha Metro measures 7.05m in diameter and 120m in length. To ensure successful transportation, the machines are dismantled into sections, including the cutter head. Each TBM traveled a distance of between 7–9 km and took approx. 2 years to complete their respective tunnels. The TBM average speed will be between 12m/day to 21m/day, depending on ground conditions. Daily excavation quantity will be over 600m³, with an estimated predicted total excavation quantity of over 5,000,000m³. Qatar Rail has been recognised by Guinness World Records for having "The Largest Number of Tunnel Boring Machines Operating Simultaneously in

2788-502: 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

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2856-432: The company responsible for the metro stations design, highlighted the region's vernacular architecture; the design acts as a bridge between the country's past and future. One of the key elements of the design is the exterior shape of the station; this uses bright, modern materials to simulate the interior of an oyster. The levels of the stations will be open to each other giving passengers at feeling of comfort, and concealing

2924-451: The current volume. Upon completion, it will be able to handle 93 million passengers per year, making it the second largest airport in the region after Dubai . It is also expected to handle 320,000 aircraft movements and 2 million tonnes of cargo annually. The check-in and retail areas are expected to be 12 times larger than those at the current airport. The airport will be two-thirds the size of Doha city. The airport has an oasis theme. Many of

2992-934: 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

3060-661: The exterior design of the trains, inspired by the shape of an Arabian horse. In May 2016, Consolidated Contractors (CCC) took over the contract for the Msheireb and Education City stations, from a joint venture of Samsung C&T Corporation (S. Korea), Obrascon Huarte Lein (Spain), and Qatar Building Company. The 75 three-car driverless trainsets for the metro system are supplied jointly by Japanese companies Mitsubishi Corporation and Kinki Sharyo . The first four sets were delivered in August 2017. Thales of France will supply

3128-557: 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

3196-478: 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

3264-597: 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

3332-619: The grand foyer of the airport's duty-free shopping hall. Standing at seven meters tall and weighing approximately 18-20 tons, the statue was previously displayed at the Seagram Building 's plaza in New York City before being purchased by a member of the Qatari royal family at a Christie's auction for US$ 6.8 million. In 2018 the airport added a new sculpture in their terminal, called Small Lie by American artist Kaws , which

3400-487: 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

3468-462: The legal and regulatory issues, as well as the relationships between the involved institutions are also part of the safety and security plan that Qatar Rail Company is leading in Doha. In September 2014, Qatar Rail, the owner and manager of Qatar's rail network and the party responsible for the design, construction, commissioning, operation and maintenance of the entire rail network and system, has held

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3536-559: The lighting and ventilation in the shapes of the arches. The "Vaulted Spaces" design was selected out of a total of six proposals and master plans for the Doha Metro stations. The specific trains used were designed by the Kinki Sharyo Industrial Design Office in collaboration with the German Design firm Tricon Design, to reflect the culture of Qatar. The Emir is known to have personally selected

3604-421: The mezzanine level, covering 9,000 square metres (97,000 sq ft). In addition, concourses D & E will be lengthened to accommodate nine additional wide-body aircraft stands. The airport has two parallel runways, located 2 kilometres (1.2 mi) from each other, which are designed for simultaneous take-offs and landings. The first is 4,850 m × 60 m (15,910 ft × 200 ft) and

3672-612: 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

3740-416: 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

3808-518: The project is completed. This will include a major interchanges station built at Msheireb, hub for the Metro network and the interchange for Red, Green and Gold Lines. Qatar Rail chose to integrate Qatari culture into the Metro by naming stations after historical towns and cities, each with its own story and background. A North-South Line connecting the towns of Lusail , West Bay , Msheireb, Hamad International Airport and Al Wakra . The Green Line follows Al Rayyan Road connecting Education City with

3876-506: 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

3944-555: The sole owner of the project while Deutsche Bahn with its global wing DB International (since 2016, DB Engineering & Consulting) took over as main consultant and source for required railway experts. In 2013, the construction of the Doha Metro officially began with a groundbreaking ceremony at the site of Msheireb station. Throughout early 2013, Qatar Rail released the D&;B tenders and received submissions from various international firms to construct sections of Phase 1a, corresponding to

4012-424: The state of Qatar regrets any distress or infringement on the personal freedoms of any traveller caused by this action.” As of the beginning of 2021, none of the women who were searched have been contacted by the Qatari authorities; subsequently, five Australian women launched legal action against Qatar Airways and two other government bodies over the incident in late 2021. The Federal Court of Australia dismissed

4080-500: 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

4148-515: The stations for the next phase. This phase contains Blue Line . This would probably be announced in the end of 2020. This project is estimated to finish in 2025/6. The Doha Metro stations design was selected in October 2013 by the Emir of Qatar. The design is called "Vaulted Spaces"; it is derived from historic Islamic architecture, using old Islamic architectural elements in a modern way. UNStudio ,

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4216-400: The train control signalling, telecommunication, a security system, an operations control center and an automatic fare collection system. Mitsubishi Heavy Industries will supply the track and power supply. The company will also supply the platform screen doors and tunnel ventilation and will be responsible with overall project management and system integration. The Metro network will cover

4284-424: The treatment of Australian women who were subjected to compulsory intimate medical examinations at Doha airport. On 30 October 2020, a report by The Guardian stated the apology of the Qatari government saying “the sincerest apology for what some female travellers went through as a result of the measures”, adding “While the urgently decided search aimed to prevent the perpetrators of the horrible crime from escaping,

4352-515: 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

4420-471: Was a donation from Qatar Museums . There were plans to expand the terminal to accommodate the increased passengers' numbers of the FIFA 2022 World Cup , and to keep up with Qatar Airways' continued passenger growth. The airport handled 34.5 million passengers in 2018 and this is expected to rise to 53 million by 2020. In 2023, a new central building located between the existing Concourse's D & E featuring

4488-716: Was awarded to design and construct the Doha Metro Gold Line. A total of 21 tunnel-boring machines from the German company Herrenknecht were planned for the tunnel construction of the Metro Phase 1. The Doha Metro consists of three lines opening in phases from 2019 to 2020, with an eventual completion date of 2026. The Red, Green and Gold Lines radiate out from a central interchange at Msheireb in downtown Doha. 10 December 2019 (Hamad International Airport, Katara, Qatar University and Lusail) Doha Metro Phase 1

4556-448: Was implemented by multiple joint ventures involving local and international contractors. Qatar Rail has previously specified that consortiums looking to build different parts of the network should partner with a Qatari firm, which has led to companies such as Qatar Building Company , Galfar Al-Misnad Engineering, Al Darwish and HBK Contracting all picking up work alongside international bidders. Doha Metro will have about 100 stations when

4624-606: Was then set to begin passenger operations in January 2014, with a soft opening. Qatar Airways threatened a $ 600 million lawsuit against the joint venture contractor Lindner Depa Interiors for delaying the opening of the airport by failing to complete its lounges on time; LDI stated that it was delayed due to inadequate site access. Qatar Airways later blamed Bechtel for the opening delay in April 2013, citing failures to meet regulatory requirements. Hamad International Airport (HIA) recently commemorated its 10-year milestone, signifying

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