京春線
Upon the opening of the electrified Gyeongchun Line in December 2010, Seoul Metro proposed extending the line 1 km eastward to connect to the Gyeongchun Line at a new Sinnae station, located in the current Sinnae Depot. Construction on the station started in late 2018 and the extension opened on December 21, 2019. In 2019, Line 6 had an annual ridership of 205 million or about 560,000 people per day.