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Singapore Changi Airport , or simply Changi Airport, is the primary civilian airport in the Republic of Singapore, and one of the largest transportation hubs in Southeast Asia and the greater India region. It is located approximately northeast〔(Aerodrome Geographical and Administrative Data, Services and Facilities ) and (Meteorological Information and Runway Physical Characteristics )〕 from the commercial centre in Changi, on a site. ==Background== Singapore's International Airport at Paya Lebar, Singapore's third main civilian airport after Seletar Airport (main airport from 1930 to 1937) and Kallang Airport (1937–55) opened in 1955 with a single runway and a small passenger terminal. With growth in global aviation transport, the airport was facing congestion problems. Its inability to cope with the rising traffic became critical by the 1970s; annual passenger numbers rose dramatically from 300,000 in 1955 to 1.7 million in 1970 and to 4 million in 1975. The government had two options: expand the existing airport at Paya Lebar or build a new airport at another location. After extensive study, a decision was made in 1972 to keep the airport at Paya Lebar, as recommended by a British aviation consultant. Plans were made for the building of a second runway and an extensive redevelopment and expansion to the passenger terminal building. A year later, however, the plans were reviewed again as the pressure to expand the airport eased because of the 1973 oil crisis. Concerned that the existing airport was located in an area with potential for urban growth, which would physically hem it in on all sides, the government subsequently decided in 1975 to build a new airport at the eastern tip of the main island at Changi, at the existing site of Changi Air Base, where the new airport would be easily expandable through land reclamation. However, as there was an increase in traffic, the airport still had to be expanded at that time. In addition, aeroplanes could fly over the sea, avoiding noise pollution issues within residential areas like those at Paya Lebar and helping to avoid disastrous consequences on the ground in the event of an air mishap. The airport in Paya Lebar was subsequently converted for military use as the Paya Lebar Air Base. After Singaporean authorities decided to build a new airport, Singaporean government dispatched an inspection team to Taiwan in 1979, watching and learning the design of newly built Chiang Kai-shek International Airport (later renamed to Taiwan Taoyuan International Airport). Singaporean staff had immediately adopted Taiwan Taoyuan International Airport's design – single terminal with surrounding highways, and two runways aside the terminal, making the Changi Airport initially look identical to Taiwan Taoyuan International Airport. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「History of Singapore Changi Airport」の詳細全文を読む スポンサード リンク
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