1. Network identification Why and how UNESCAP and its member countries decided in the early 1990s to identify an international network of railway lines traveling across the Asian continent. 2. Network operationalization How UNESCAP and a group of countries went about showing the relevance of railways to serve the movement of international trade flows within Asia and between Asia and Europe. 3. Network formalization The Intergovernmental Agreement on the Trans-Asian Railway Network was signed at Busan, Republic of Korea, on 10 November 2006 during the Ministerial Conference on Transport that took place in the port city from 6 to 11 November 2006. The Agreement was recognized as an example of successful regional cooperation in the Busan Declaration on Transport Development in Asia and the Pacific adopted by the Ministers on 11 November 2006. See which countries signed and how UNESCAP and its member countries got to this point.