Japan–Korea Undersea Tunnel at about ₩100 trillion (approx. US$90 billion), which would produce an extremely low benefit-to-cost result. In 2014, the South Korean Busan Development Institute estimated the undersea tunnel could create ₩54 trillion won (원54T, or US$53 billion) in economic benefits and provide about 45,000 jobs. In an April 2009 editorial, former Justice Ministers Daizō Nozawa of Japan and Kim Ki Chun of South Korea remarked on some of the similarities of the proposed Japan–Korea tunnel to the world's present longest undersea tunnel. The Channel Tunnel runs for 50.45 km linking the United Kingdom and France, and opened in May 1994: At
England is the oldest in the world: passenger railways originated in England in 1825. Much of Britain's of rail network lies in England, covering the country fairly extensively, although a high proportion of railway lines were closed in the second half of the 20th century. There are plans to reopen lines such as the Varsity Line between Oxford and Cambridge. These lines are mostly standard gauge (single, double or quadruple track) though there are also a few narrow gauge lines. There is rail transport access to France and Belgium through an undersea rail link, the Channel Tunnel, which was completed in