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在城市轨道交通规划、设计中,存在客流量预测的不确定性,当出现较大的客流量变化时,需要对线路的初始设计能力进行扩大调整。以天津地铁4号线扩能设计为例,提出采用A型车6辆编组和B型车8辆编组方案,并对2种方案从运能、乘车舒适度、增加投资、资源共享等方面进行对比与分析,优选推荐采用6辆B型车编组方案,预留扩大到8辆编组的工程条件。
In urban rail transit planning and design, there is uncertainty in passenger flow forecasting. When there is a large change in passenger flow, the initial design capability of the line needs to be expanded and adjusted. Taking the expansion design of Tianjin Metro Line 4 as an example, this paper proposes a grouping plan of 6 marshals of type A cars and 8 marshals of type B cars, and puts forward two plans for maneuvering, riding comfort, increasing investment, resource sharing and so on For comparison and analysis, it is recommended to use six B-type car grouping plan, set aside to expand to 8 grouping engineering conditions.