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自1863年伦敦建成世界上第一条地铁以来,城市轨道交通在全世界得到广泛应用。在日常生活中,地铁作为一种便捷、绿色的出行方式备受人们亲睐。在城市,随着城际间轨道交通的衔接、城市交通一体化的发展,地铁逐渐成为城际融合和构建城市群生态系统的重要纽带。截止2014年12月,我国各城市轨道交通总长共计2 300多km。其中北上广三地的轨道交通的里程数位居前三,预计到2016年,北京地铁的总历程将达到660公里以上,
Since 1863, London completed the world’s first subway, urban rail transit has been widely used all over the world. In daily life, the subway is favored as a convenient and green way to travel. In the city, with the intercity rail transit convergence, the integration of urban transport development, the subway has gradually become an important link between the intercity integration and the construction of urban agglomeration ecosystem. As of December 2014, the total length of rail transit in various cities in China totaled over 2,300 km. Among them, the number of rail transit in the three places in the north and the south is among the top three. It is estimated that by 2016, the total journey of the Beijing Subway will reach more than 660 km,