Suin–Bundang Line
The Suin–Bundang Line is a commuter rail service of the Seoul Metropolitan Subway system, operating on trackage from the Suin Line (opened on June 30, 2012) and the Bundang Line (opened on September 1, 1994). Operation began on September 12, 2020. Frequent service is provided between Wangsimni and Incheon by 6-car trains, with several trains a day running one station north of Wangsimni to Cheongnyangni. However, many trains terminate at various locations on the line such as Jukjeon, Gosaek, and Oido. Trains travel along the Suin (Incheon-Suwon), Bundang (Suwon-Wangsimni), and Gyeongwon (Wangsimni-Cheongnyangni ) lines. It shares trackage with the Ansan Line of Seoul Subway Line 4 between Hanyang University at Ansan and Oido. Like all other Korail-run Seoul Metropolitan Subway lines, trains on the line run on the left-hand side of the track. The color shown on the map is yellow. History. 1994: 2003: 2004: 2007: 2011: 2012: 2013: 2014: 2016: 2017: 2018: 2020: Future Plans. Hagik station is planned to open between Songdo and Inha University in 2023. In addition, a connection line is under consideration at Suwon that will allow KTX trains to run between the Gyeongbu high-speed  railway and Incheon Station via the Suin Line by 2025. Rapid (Express) trains. Korail operates a variety of express "rapid" (급행) trains for regional services on the Suin-Bundang Line during rush hours. These services include: