Seoul Metropolitan Subway
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| Overview | |||
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| Native name | 수도권 전철 Sudogwon Jeoncheol |
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| Owner | Government of South Korea, Seoul Metropolitan Government, Incheon City, Bucheon City, Uijeongbu City, Yongin City and private companies | ||
| Locale | Seoul Capital Area | ||
| Transit type | Rapid transit, Commuter rail | ||
| Number of lines | 20 | ||
| Annual ridership | 2.619 billion (2013, Lines 1-9) 1.027 billion (2012, Korail) |
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| Operation | |||
| Began operation | 15 August 1974 | ||
| Operator(s) | Seoul Metro, Seoul Metropolitan Rapid Transit Corporation, Korail, Incheon Transit Corporation, and private rapid transit operators | ||
| Technical | |||
| System length | 331.5 km (206.0 mi) (Seoul Metro / SMRT / Line 9 only) 1,097.3 km (681.8 mi) (all lines) |
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| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) standard gauge | ||
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The Seoul Metropolitan Subway is a metropolitan railway system consisting of 20 rapid transit, light metro, commuter rail and people mover lines South Korea. The system serves most of the Seoul Metropolitan Area including the Incheon metropolis and satellite cities in Gyeonggi province. Some regional lines in the network cross large rural areas to reach major cities in northern Chungnam province and western Gangwon province that lie over 100 km away from the capital.
The network consists of numbered lines 1–9, which serve Seoul City proper and its surroundings and named wide-area lines that serve the greater metropolitan region. Most of the system is operated by four companies – Seoul Metro, Seoul Metropolitan Rapid Transit (SMRT), Korail (Korea National Railroad) and Metro 9.
Its first metro line, Line 1, started construction in 1971 and opened in 1974, with through-operation to Korail suburban railways. Today, it is one of the largest and most efficient metro systems in the world, with 331.5 km (206.0 mi) of track on lines 1–9 alone; wireless and internet service on all trains; and platform screen doors at the majority of stations.
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