随着经济的迅猛发展,我国正进入城市化快速发展阶段,城市人口的不断增长,经济活动的日益频繁,给城市交通造成了很大的压力。一些城市交通拥挤、堵塞的现象非常突出,影响了经济的发展和人民群众的日常活动。根据国内外的普遍经验,缓解城市交通最有效的措施就是要大力发展城市轨道交通,构建起 With the rapid economic development, our country is entering a stage of rapid urbanization. The growing urban population and the increasingly frequent economic activities have caused great pressure on urban transport. The congestion and congestion in some cities are very prominent, affecting the economic development and the daily activities of the people. According to the common experience both at home and abroad, the most effective measure to ease urban traffic is to develop the urban rail transit vigorously and construct