[1] The section from Gyeongju to Pohang would become the oldest part of the future Donghae Nambu Line.

[6][7] Korea Rail Network Authority, Busan, and Ulsan city government is undertaking the upgrade.

[5] 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.

[10] The altogether 76.56 km line was slated to be opened in December 2014, with a total budget of 2,328.899 billion won.

[14] Via the Gyeongbu, Daegu and Jungang Lines, Pohang and Ulsan are connected to Seoul with both intercity Saemaul-ho and cross-country Mugunghwa-ho services.

Between Ulsan and Busan Donghae Nambu Line a scrapped ship to utilize the space between East-Busan resort complex and that they would work together to Haeundae with connecting the invigoration of the local economy by creating a tourist resources.