Japan-Korea Undersea Tunnel

The Japan-Korea Undersea Tunnel or JKUT is a tunnel connecting Fukuoka and Busan in the East Asian Federation spanning almost 200 kilometers. The tunnel includes ten lanes for automobile traffic, five conventional rail tracks, and three maglev right-of-ways. It carries Tunnel Shuttle Services and New Main Line long-distance service in the rail portion of the tunnels. The tunnel construction was be a joint project between the Infrastructure Advancement Corporation and Hyasoda Contract Services engineers, architects and construction workers. Infra Corp has designed three rest stops into the design for fuel stations, food and restrooms and a station at the mid point for emergency personnel to respond to tunnel accidents.

Route
The road alignment begins as an extension of the Gyeongbu Expressway travelling underneath downtown Busan. A spur route branches from the main tunnel under the city to start the Busan-Geoje Fixed Link. The main route then proceeds through the beginning of the core tunnel section. The northern rail alignment continues south of Busan Station, entering a tunnel approximately 800 meters south of the station platforms. At the 62 kilometer mark is the first automobile rest station, called Bugjjog Hyusig rest station. It is equipped with restrooms, vending machines, a petrol station, and a small information center. At the 100 kilometer mark is both the Seom/Shima Rest Station and the Busan-Hakata rail station, containing several amenities for weary travelers. At the 172 kilometer mark is the Minami Nokori rest station. It is equipped with restrooms, a small emergency care facility, and a petrol station. The southern road portal is in downtown Fukuoka, providing local connections to city streets. The southern rail portal is west of Fukuoka, north of Karatsu City.