From January 15, 1993, to March 31, 1994, the Seoul Metropolitan Subway Line 1 operated like the Ansan Line, and since the opening of all sections on April 1, 1994, it has been operated as a part of the Metropolitan Subway Line 4.

As a transportation measure for Gwacheon Information Town Station, a residential and industrial complex being built in the Galhyeon-dong area of Gwacheon-si, a new station is being built between Indeokwon and Gwacheon Government Complex, with the goal of opening in 2027.

In addition, it is said that they are pushing forward with the installation of an evacuation track at Gwacheon Government Complex Station and Daegongwon Station as part of the promotion of the Line 4 express extension.

As part of the first new town development in the early 1990s, the Gwacheon Line was built under the leadership of the Korea Railroad Administration (currently Korea Railroad Corporation) for the purpose of connecting Sanbon New Town and Pyeongchon New Town with Gwacheon City and Seoul Metropolitan City.

This Seoul Metropolitan Subway article is a stub.