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铁道部《中长期铁路网规划》明确提出,要建立“四纵四横”和长三角、珠三角、环渤海3大城际轨道快速交通系统,规划到2020年,新建车速超过200公里/小时的高速铁路1.2万公里。
The Ministry of Railways “Medium and Long-term Railway Network Planning” clearly states that it is necessary to establish “four vertical and four horizontal” railway rapid transit systems along the Yangtze River Delta, Pearl River Delta and Bohai Rim, and plans to build a new rapid transit system of over 200 km by 2020 / Hour high-speed railway 12000 kilometers.