地铁作为城市生活的一部分,在基建拉动、文化传播等方面的综合效益显著,然而也存在着投资大、收益差等不良因素,因此还需冷静看待地铁热。截止2010年底,我国拥有轨道交通运营线路的城市已达到12个。目前为止,国务院已经批准了28个内地城市的轨道交通规划,其中八个城市的地铁项目正在建设中。 As a part of urban life, the comprehensive efficiency of the subway in terms of infrastructure construction and cultural transmission is significant. However, there are also adverse factors such as large investment and poor income. Therefore, it is still necessary to treat the subway fever calmly. As of the end of 2010, China has 12 rail transit operation lines in the city. So far, the State Council has approved rail transit plans for 28 mainland cities, of which subway projects are under construction in eight cities.