高速铁路工作的进展情况当前，交通运输已成为制约国民经济发展最主要的“瓶颈”，而交通运输的焦点又在大通道上，其中南北通道运能缺口最大，以京沪通道最为突出。京沪运输大通道贯穿东部沿海四省三市，连接京、津、唐环渤海经济带和沪、宁、杭长江三角洲经济带，是我国... At present, transportation has become the most important “bottleneck” restricting the development of the national economy. The focus of transportation is again on the major thoroughfare, in which the transport gap between the South and the North reaches is the largest, with the most prominent of the Beijing-Shanghai channel. Beijing-Shanghai transport corridor runs through the eastern coastal provinces and three cities, connecting Beijing, Tianjin, Tanghai and the Bohai Economic Belt and Shanghai, Ning, Hangzhou Yangtze River Delta economic belt, is our country ...