每一次交通的蝶变,城市都经历一次划时代的变化。2016年,长沙市轨道交通版图再添新军,磁浮快线、地铁1号线相继开通试运营,长沙城进入全新的换乘时代。而年底长株潭城际铁路也将开通,湘江新区今年有望建设有轨电车……随着城市轨道交通网络的日臻完善,可以预见长沙大城时代即将到来。与此同时,如何确保城市轨道交通安全地运行也成为我们必须面对的问题。虽然说,城 Each time the traffic butterfly, the city has experienced a landmark change. In 2016, another new army was added to the territory of Changsha’s rail transit. The Maglev Line and Metro Line 1 were opened for trial operation. Changsha City entered a new era of transfer. By the end of Changsha-Zhuzhou-Xiangtan intercity railway will also be opened, Xiangjiang New District is expected to build tram this year ... ... With the increasing urban rail transit network, we can expect the era of Changsha City coming. At the same time, how to ensure the safe operation of urban rail transit has also become a problem we must face. Although that city