“东边道”是一条以鸭绿江口(丹东港)为起点,连接东北东部、辽东半岛东海岸、中朝、中俄边境南北走向的铁路交通大动脉,也是连接东北三省、深入东北东部经济腹地、以大东港为出海口的主要通道。中共中央、国务院2003年11号文件《关于实施东北地区等老工业基地振兴战略的若干意见》,明确指出“建设纵贯东北东部地区的铁路工程,形成东北新的出海通道”。2004年9月16日,铁道部已与东北三省正式签订了修建纵贯东北三省东部地区的东边铁路协议, “East Side Road” is a railway transportation artery linking the northeastern part of Northeast China, the east coast of Liaodong Peninsula, the north-south railroad connecting China, North Korea and China and Russia along the Yalu River Estuary (Dandong Port), and also connects the three northeastern provinces to the economic hinterland of the eastern part of Northeast China , To Dadonggang as the main channel to the sea. Several Opinions of the CPC Central Committee and the State Council on Implementing the Strategy of Revitalizing the Old Industrial Bases in the Northeast and Other Areas in 2003 Document No. 11 of 2003, clearly states that “building a railway project running through the eastern part of Northeast China will lead to the formation of a new sea access for the northeast.” On September 16, 2004, the Ministry of Railways and the three northeastern provinces officially signed an agreement on the construction of an east railway that runs through the eastern region of the three northeastern provinces.