Seoul Subway Line 2

Seoul Subway Line 2 (Template:Langx), also known as the Circle Line, is a circular line of the Seoul Metropolitan Subway. The line running clockwise is called the "inner circle line" and the counter-clockwise line is called the "outer circle line". This is Seoul's most heavily used line, and consists of the main loop (Template:Convert), the Seongsu Branch (Template:Convert) and the Sinjeong Branch (Template:Convert) for a total line length of Template:Convert. The Line 2 loop is the third longest subway loop in the world after Moscow Metro Bolshaya Koltsevaya line and Beijing Subway Line 10.Template:Efn<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> In 2019, Line 2 had an annual ridership of 812 million passengers or 2.2 million passengers per day.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Headways on the line vary from 2 minutes 18 seconds on peak periods <ref>[사회]서울 지하철2호선 출근길 배차간격 12초 짧아져. Ytn.co.kr (2010-11-22). Retrieved on 2013-07-12.</ref> and 5–6 minutes off-peak periods. The line connects the city centre to Gangnam, Teheran Valley and the COEX/KWTC complex.

History

File:Subway sign Seoul Metro.jpg

Former split-flap display passenger information system signs used on Seoul Subway Line 2 from 1980 until replaced with flat-screen TV displays in 2005–10.

File:지하철 2호선 2단계 개통 기념 지하철표.jpg

Commemorative ticket issued for the opening of the second phase of Seoul Subway Line 2 on December 23, 1982.

File:Early 1980s Seoul Subway Map - Flickr - skinnylawyer.jpg

Fragment of an early-1980s Seoul Subway map, showing the western two-thirds of the Line 2 loop as a green line.

In 1972, then-Mayor of Seoul Template:Ill (1932–1996) changed the existing plans for the Seoul Subway to better enable connectivity around the growing Seoul City and allow for development to take place across the Seoul Metropolitan Area. Line 2 was built in 1978–84 together with the Seongsu Branch (the second Sinjeong Branch was built 1989–95). Dangsan Railway Bridge was closed for reconstruction in 1996 and reopened November 22, 1999. The old steel girder bridge was replaced by a Template:Convert long concrete bridge between Dangsan on the southern side of the river and Hapjeong on the northern bank. During this period, the inner loop only ran to Dangsan Station, and the outer loop only ran to either Hongik University Station or Hapjeong Station. Template:Efn

Yongdu station on the Seongsu Branch (between Sindap and Sinseol stations) is the first station in the Seoul Subway system with operating platform screen doors. As of 2008 platform screen doors are operating at all stations along Line 2. New rolling stock has also progressively came on line, replacing older vehicles.

● October 31, 1980		Sinseol-dong – Sports Complex (via Seongsu) section opened
● December 23, 1982		Sports Complex – Seoul Nat'l Univ. of Education section opened
Template:Nowrap		Euljiro 1-ga – Seongsu section opened; Sinseol-dong – Seongsu section separated as Seongsu Branch
● December 17, 1983		Seoul Nat'l Univ. of Education – Seoul Nat'l University section opened
● May 22, 1984		Seoul Nat'l University – Euljiro 1-ga (via Sindorim) section opened; the Circle Line (the longest in the world at Template:Convert until it was surpassed in 2013) is completed.<ref name=":0">{{#invoke:citation/CS1|citation	CitationClass=web }}</ref>
● May 22, 1992		Sindorim – Yangcheon-gu Office section opened as Sinjeong Branch
● February 29, 1996		Sinjeongnegeori Station opened as extension of Sinjeong Branch
● March 20, 1996		Kkachisan Station opened as extension of Sinjeong Branch
● October 20, 2005		Yongdu Station opened on the Seongsu Branch
● September 2010		Siemens Mobility ATP/ATO GoA 2 signalling system implemented on newer trains to increase frequencies and route capacity.

Facilities

In December 2010 the line is recorded as having the highest WiFi data consumption in the Seoul Metropolitan area. It averaged 2.56 times more than the other 14 subway lines fitted with WiFi service zones.<ref>Template:Cite news</ref>

In 2011, retailer Homeplus opened the world's first virtual supermarket at Seolleung station, where smartphone users can photograph the bar code of life-size pictures of 500 items of food, toiletries, electronics etc. on the walls and platform screen doors, for delivery the same day.<ref>Template:Cite news</ref>

Stations

All stations on all branches are in Seoul.

Main Line

Station number	Station name			Connections	Distance		Location
	Template:Nobold	Template:Nobold	Template:Nobold		Template:Nobold	Template:Small
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check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Sadang	Template:Lang	Template:Lang	Template:Rint	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Dongjak-gu {{safesubst:#invoke:Check for unknown parameters|check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}
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check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Seoul National University Template:Small	Template:Lang	Template:Lang		check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}
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check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Sindaebang	Template:Lang	Template:Lang		check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Dongjak-gu {{safesubst:#invoke:Check for unknown parameters|check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}
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check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Daerim Template:Small	Template:Lang	Template:Lang	Template:Rint	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}
check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Sindorim	Template:Lang	Template:Lang	Template:Rint Template:Rint Template:Small	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}
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check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Dangsan	Template:Lang	Template:Lang	Template:Rint	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}
check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Hapjeong Template:Small	Template:Lang	Template:Lang	Template:Rint	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Mapo-gu {{safesubst:#invoke:Check for unknown parameters|check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}
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check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Sinchon	Template:Lang	Template:Lang		check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}
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Seongsu Branch

Station number	Station name			Connections	Distance		Location
	Template:Nobold	Template:Nobold	Template:Nobold		Template:Nobold	Template:Small
check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Seongsu	Template:Lang	Template:Lang	Template:Rint Template:Small	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Seongdong-gu {{safesubst:#invoke:Check for unknown parameters|check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}
check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Yongdap	Template:Lang	Template:Lang		check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}
check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Sindap	Template:Lang	Template:Lang		check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}
check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Yongdu Template:Small	Template:Lang	Template:Lang Template:Small		check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Dongdaemun-gu {{safesubst:#invoke:Check for unknown parameters|check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}
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Sinjeong Branch

Station number	Station name			Connections	Distance		Location
	Template:Nobold	Template:Nobold	Template:Nobold		Template:Nobold	Template:Small
check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Sindorim	Template:Lang	Template:Lang	Template:Rint Template:Rint Template:Small	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Guro-gu {{safesubst:#invoke:Check for unknown parameters|check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}
check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Dorimcheon	Template:Lang	Template:Lang		check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}
check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Yangcheon-gu Office	Template:Lang	Template:Lang		check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Yangcheon-gu {{safesubst:#invoke:Check for unknown parameters|check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}
check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Sinjeongnegeori	Template:Lang	Template:Lang		check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}
check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Kkachisan	Template:Lang	Template:Lang	Template:Rint	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}	Gangseo-gu {{safesubst:#invoke:Check for unknown parameters|check|unknown=|preview=Page using Template:Center with unknown parameter "_VALUE_"|ignoreblank=y| 1 | style }}

Extension

There is a possible extension currently in the conception stage to extend the Sinjeong Branch to 3.7 km to Gayang Station on Line 9. The path would include a new station named Gangseo-gu Office in between Kkachisan and Gayang.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Rolling stock

File:Dangsan Railway Bridge Han River.jpg

Second-generation Seoul Metro 2000 series VVVF-inverter train (third batch) crossing the Dangsan Railway Bridge on the Han River in October 2022.

Five generations of Seoul Metro 2000 series trains have been used on Seoul Subway Line 2. As of January 2026, only third, fourth and fifth batch 2000 series trains are in operation (manufactured by Hyundai Rotem and Dawonsys respectively), since all first (MELCO thyristor chopper control) and second batch (GEC Traction/Alstom thyristor chopper control) trains have been retired between 2008 and 2023. All trains are stored and maintained at Sindap Depot on the Seongsu Branch and Sinjeong Depot on the Sinjeong Branch.

See also

• 2014 Seoul subway crash
• Subways in South Korea
• Seoul Metropolitan Subway

External links

• Seoul Metro
• Map, station and route finder