Daejeon Metro Line 1

Daejeon Subway Line 1 is a subway line is located in Daejeon, South Korea. After excluding the Seoul metropolitan area, it was the fourth subway line created in South Korea, following Busan, Daegu, and Gwangju. Its line color is ● green. It is 22.6 km long with 22 stations. It is the first of five planned lines for the Daejeon Metro.

The first section was opened on March 16, 2006, and the second subsequently opened on April 17, 2007. The tracks lead from Banseok station in Yuseong-gu to Panam station in Dong-gu. 2029 is the tentative opening date of a 14 km, five-station extension from Banseok to Government Complex Sejong in the neighbouring Sejong City.

Formation
In 1991, the Daejeon Metropolitan City Urban Railway Construction Plan was established. In January 1994, the Subway Planning Unit was established. In February 1996, the basic plan for subway construction, which links the old city center of Daejeon metropolitan city with the new city center, was confirmed. The subway construction headquarters was established in April 1996, and construction of the first line of Daejeon subway line was started in October of the same year.