Donghae Bukbu Line

With increasing talk of peaceful Korean reunification beginning in the 1990s, there have been various efforts to reopen the Donghae Bukbu Line, together with the Gyeongui Line in the west.[2] An opened Donghae Bukbu Line would provide ready land access to the Mount Kumgang Tourist Region, which is open to South Korean tourists. After the completion of reconstruction on the 11.1 km (6.9 mi) cross-border section between Jejin in South Korea and Gamho in North Korea, the initial test run was set for May 25, 2006, but North Korean military authorities cancelled the plans a day ahead of the scheduled event.[2] On the South Korean side, Korail opened Jejin Station in 2006 and has maintained some rolling stock for a trial run.

At a meeting held in Pyongyang, North Korea, on April 22, 2007, North and South Korea agreed to restart the project. On May 17, 2007, the first train to cross the border between North and South Korea in over 50 years entered South Korea from the North,[2] from Kaesŏng to Dorasan on the Gyeongui line (whose northern section is known as the P'yŏngbu line). More than one million civilian visitors crossed the DMZ until the route was closed following the shooting death of a 53-year-old South Korean tourist in July 2008.[3] After a joint investigation was rebuffed by the North, the Republic of Korea government suspended tours to the resort. Since then the resort, and the Donghae Bukbu Line, have effectively been closed by the North.[4][5]

During the efforts to re-open the cross-border section, the South Korean government has taken up the idea of a railway all along the east coast from Pohang to the North Korean border, with a primary aim to serve freight traffic that could eventually access the Trans-Siberian Railway.[2][6] As part of the project, plans foresaw to connect the end of the Yeongdong Line in Gangneung with Jejin by 110.2 km (68.5 mi) long, single-track, non-electrified line for 150 km/h (93 mph),[7] effectively re-building the Donghae Bukbu Line on a new alignment.

Three years later, the project re-surfaced as a domestic project. On September 1, 2010, the South Korean government announced a strategic plan to reduce travel times from Seoul to 95% of the country to under 2 hours by 2020. The section from Gangneung to Sokcho forms a part of the plan as a line for 230 km/h (140 mph), and may see KTX service.[8]