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自19世纪出现下城市公共交通运输以来,交通工具已由最初的马拉有轨车、蒸汽车,发展成公共汽车。自20世纪50年代以来,西方主要国家的城市交通都先后进入了汽车化时代。然而,随之而来的道路拥挤、交通阻塞,使现代化的交通工具不能充分发挥优势。特别是从20世纪70年代以来,由于能源危机,城市人口猛增,城市规模日益扩大,给世界各国城市交通带来巨大压力。现在世界各大城市都在竞相发展有轨交通系统,特別是轻轨交通,以期解决城市乘车难问题。 所谓城市有轨交通系统,就是以市郊铁路、地下铁道和轻轨电车铁路为主
Since the 19th century, the city under the public transport has emerged, the transport has been the first Mara rail car, steam car, developed into a bus. Since the 1950s, urban traffic in the major western countries has successively entered the era of automobileization. However, the consequent road congestion and traffic congestion make the modern means of transport unable to give full play to their advantages. Especially since the 1970s, due to the energy crisis, the rapid growth of the urban population and the increasing scale of cities have brought tremendous pressure on the urban traffic in all countries in the world. Now the major cities in the world are competing to develop the rail transit system, especially the light rail transit, in order to solve the difficult problem of urban transport. The so-called urban rail transit system, is based on suburban railway, subway and light rail trains mainly