Seoul Subway Line 7 of the Seoul Metropolitan Subway was built from 1990 to 1996 and was completed on August 1, 2000 ; the western section between Sinpung and Onsu was put into service on February 29, 2000. This north-south line does not run through the city centre but links Gangnam directly to the northeastern districts of Seoul. In 2019, Line 7 had an annual ridership of 380 million or 1.04 million passengers per day. Although most trains run between Jangam and Seongnam, some trains short turn at Onsu station and some trains start at Dobongsan station.
Seoul Subway Line 7
Seoul Metropolitan Subway
The Seoul Metropolitan Subway is a metropolitan railway system consisting of 23 rapid transit, light metro, commuter rail and people mover lines located in northwest 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 stretch out beyond the Seoul Metropolitan Area to rural areas in northern Chungnam province and western Gangwon Province, that lie over 100 km (62 mi) away from the capital.
Seoul Metro 2000 series train on Line 2
T-money smart card
Magnetic-stripe ticket + Upass turnstiles on Line 4 in July 2001
The platform at Hoehyeon Station on Seoul Subway Line 4 in Jung-gu, Seoul