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截至2012年底我国已开通城市轨道交通运营线路的城市共有17个,运营线路70条,运营总规模约2 000 km,在解决城市交通拥堵、方便市民出行等方面发挥了重要作用。目前国家已经批准了36个城市的城市轨道交通建设规划,目前已经批复可研报告的28个城市在建线路87条共2 160多km,“十二五”期间将新增运营里程超过1 600 km,与以往40多年的投运总里程相当,由此可
As of the end of 2012, China has opened a total of 17 urban rail transit lines in operation, with 70 operating lines and a total operation scale of about 2 000 km. It has played an important role in resolving urban traffic congestion and facilitating citizens’ travel. At present, the country has approved the planning of urban rail transit construction in 36 cities. At present, 87 cities under approval of the feasibility study report have 87 lines under construction totaling 2,160 km. During the “12th Five-Year Plan” period, the newly added mileage will be exceeded 1 600 km, which is comparable to the total commissioning in the past 40 years