Standby trains are one of the key tools for urban rail transit, which are used for running interval and evacuating passenger flow.
备用客车是作为调整城市轨道交通行车间隔，进行客流疏导的关键工具。Taking Changsha subway Line 2 as an example, the paper studies the scale configuration of two or more urban rail transit car parkings.
以长沙轨道交通2号线为例，对城市轨道交通线2个或多个车辆停放场规模分配问题进行了研究。1 mass transit security projects, is the safety of urban rail transit construction and safe operation of the general term for all the work.
1定义城市轨道交通安全工程，是影响城市轨道交通安全建造与安全运营的全部工作的总称。A simple central clearing system is proposed as a transition before the formation of a larger-scale network of urban rail transit.
在城市轨道交通线网规模尚未形成的情况下，提出自动售检票系统清分中心的过渡方案——小清分系统。As the direct transport tools in the urban mass transit system, vehicles have to fit into the environment of each city.
城市轨道交通车辆作为城市轨道交通体系的直接运输工具，其必须符合各城市相应的特殊环境。As a modern rail transportation vehicle in the city, the social influence would be great once the emergency happened in metro.
地铁作为现代化的城市轨道交通工具，一旦发生突发事故，其社会影响力十分巨大。A correct evaluation of the investment impact on URT benefits helps to make decisions for the strategic development of it.
正确评估城市轨道交通产业的投资效应大小，有利于正确制定其发展策略。Extensive measures have been taken over the years to mitigate the effects of noise and vibration on transit systems across North America.
在北美洲，过去几年中曾经采用许多方法缓解降低噪声和振动对城市轨道交通系统的影响。The simulation shows that urban rail traffic service is improved means of the mobile terminal.
以模型的仿真分析说明这种移动通信体对城市轨道交通系统服务的改善。