Line 4 has been constructed since 2003. It opened on March 30, 2011. It connects from Minam(미남) to Anpyeong(안평) with 12 stations. The line’s length is 12.7 km. It is expected to promote development of Geumsa(금사), Bansong(반송) and Gijang(기장) regions. It is light rail which consumes only 80% money in construction and management compared to existing heavy rail.