Editing Suin Line (section)

{{Short description|Commuter subway line of Korail}}
{{About|the railway line prior to its extension in 2020|the current line|Suin–Bundang Line}}{{About|| the former line|Suin Line (1937–1945)}}
{{Infobox rail line
| box_width     = auto
| color         = {{rcr|Seoul Metropolitan Subway|Suin}}
| name          = Suin Line
| native_name   = {{Lang|ko|수인선(水仁線)}}<br />''Suinseon''
| logo          = [[File:South Korea subway logo.svg|x40px]] [[File:Suin Line.svg|x40px]]
| logo_alt      = 
| image         = [[file:Korail_Class_351000_EMU_3rd_batch.jpg|265px]]
| image_width   = 
| image_alt     = 
| caption       = 
| type          = [[Rapid transit]]
| system        = [[Seoul Metropolitan Subway]]
| status        = Operational
| locale        = 
| start         = [[Suwon Station|Suwon]]
| end           = [[Incheon Station|Incheon]]
| stations      = 27 operational (8 shared with the [[Ansan Line]])
| routes        = 
| daily_ridership = 
| open          = June 30, 2012 (Phase 1) <br />February 27, 2016 (Phase 2) <br />September 12, 2020 (Phase 3)<br /> (new route)
| close         = December 31, 1995 (original route)
| owner         = 
| operator      = [[Korail]]
| character     = 
| depot         = Siheung
| stock         = 
| linelength_km = 
| linelength    = {{convert|39.2|km|mi|abbr=on}}<ref name="IRWJ-15sep2020" />
| tracklength_km= 
| tracklength   = 
| tracks        = 2
| gauge         = {{Track gauge|762mm|lk=on}}
| load_gauge    = 
| minradius     = 
| routenumber   = 
| linenumber    = 
| electrification = 
| speed_km/h    = 
| speed         = 
| elevation_m   = 
| elevation     = 
| website       = 
| map           = {{Suin Line route diagram|inline=1}}
| map_state     = collapsed
}}
The '''Suin Line''' ('''Su'''won-'''In'''cheon; {{Korean|hangul=수인선}}) was a metro line of the [[Seoul Metropolitan Subway]] serving the [[Seoul Capital Area]].

The original route, abandoned in 1995, was one of the few {{Track gauge|762mm|lk=on}} [[narrow-gauge railway]]s in [[South Korea]]. Opened by the privately owned [[Chosen Gyeongdong Railway]] in 1937, it connected [[Suwon Station|Suwon]] to [[Namincheon Station|Namincheon]] via [[Ansan Station|Ansan]] and [[Siheung]]; in 1942, it was taken over by another private railway, the [[Chosen Railway]] (the largest of [[Korea under Japanese rule|colonial Korea]]'s privately owned railway companies). The Chosen Railway owned the line until all railways in Korea were nationalized after 1945. However, since December 28, 2004, the Suin Line is being reconstructed with [[standard gauge]] and [[double track]]ing as an integral part of the [[Seoul Metropolitan Subway]] network and is opening in three phases.<ref>{{Cite web|url=https://terms.naver.com/entry.nhn?docId=559077&cid=46632&categoryId=46632|title=Suin Line|last=|first=|date=|website=EncyKorea|archive-url=|archive-date=|access-date=}}</ref>

All northbound trains terminated at [[Incheon Station|Incheon]], all southbound services terminated at [[Oido Station|Oido]]. Express train service served only Oido, Soraepogu, Incheon Nonhyeon, Woninjae, Yeonsu, Inha University, and Incheon.<ref>{{Cite news|url=http://news.joins.com/article/8640684|title=전철로 22분 … 이웃동네 된 송도~오이도|date=2012-07-03|work=[[JoongAng Ilbo]]|access-date=2018-04-12|language=ko-KR}}</ref>

Trains along the line were 6 cars long. Platforms at stations are built for 8 cars in preparation for the merging of the [[Bundang Line]] with the Suin Line, and are prepared for 10 cars when the extension occurs.

Trains run at an interval of 15 minutes throughout the day.