Native name 2호선（二號線）I Hoseon Status Operational Stations 51 | Opened October 31, 1980 Operator Seoul Metro | |
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Termini City Hall / Seongsu / SindorimCity Hall / Sinseol-dong / Kkachisan | ||
Korea seoul subway line 2 in action
Seoul Subway Line 2 (dubbed 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 (47.7 km), the Seongsu Branch (5.4 km) and the Sinjeong Branch (6.0 km) for a total line length of 60.2 km. The Line 2 loop is the second longest subway loop in the world after Beijing Subway Line 10.
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Headways on the line vary from 2 minutes 18 seconds on peak periods and 5–6 minutes off-peak periods. The line connects the city centre to Gangnam, Teheran Valley and the COEX/KWTC complex.
History
Line 2 was built in 1978–84 together with the Seongsu Branch (the second Sinjeong Branch was built 1989–95). Dangsan bridge was closed for reconstruction in 1996 and reopened November 22, 1999. The old steel girder bridge was replaced by a 1.3-kilometre (0.81 mi) long concrete bridge between Dangsan on the southern side of the river and Hapjeong on the northern bank.
Yongdu Station, situated on the Seongsu Branch between Sindap and Sinseol stations, holds the distinction of being the first station within the Seoul Subway system to implement platform screen doors. By 2008, these doors were operational across all Line 2 stations. Additionally, the introduction of new rolling stock has been ongoing, gradually replacing the older vehicles.
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.
In 2011, retailer Home plus opened the world's first virtual supermarket at Seolleung Station, where smartphone users can photograph the bar code of life-size pictures, on the walls and platform screen doors, of 500 items of food, toiletries, electronics etc., for delivery within the same day.
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.