[1][2] It is an island platform with two lines on one side, and a screen door is installed.

Its name means "great southern pass," referring to a passageway linking Seoul and Gwacheon, between Mt.

Jeongjo of Joseon, the 22nd King of Choson, had gone to Hwaseong Fortress, Suwon, where Jeong-Jo's father was buried on.

Trains still run on the left hand side of the track on these railways.

Therefore, between Namtaeryeong and Seonbawi Stations, where the two lines connect, the underground tracks must cross over from right hand drive in Namtaeryeong to left hand drive in Seonbawi.