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针对目前设计手册中城市轨道交通车站站台宽度计算存在的问题，本文根据现场调研，借鉴其他国家或地区的设计规范，提出了计入楼扶梯纵向对应宽度的改进站台乘降区宽度测算方法；并采用计算机行人仿真工具，分别根据原方法和改进方法计算得到的站台宽度建立了案例车站的实体环境，进行仿真分析，得到了两种方法设计的车站的行人密度分布、行人时间损失、站台集散时间等指标.指标对比显示，对站台集散能力起决定作用的是站台楼扶梯，采用改进的计算方法，站台宽度虽然有缩减，但是整体服务水平降低不大，改进的计算方法在满足站台安全舒适性的要求的同时可缩减车站规模.

Modification and Pedestrian Simulation of Platform Width Calculation Method of Urban Rail Transit

Based on the current related research and field studies,this paper proposes the calculation method of boarding and alighting area width of platform in the current design manual for urban rail transit.Taking some design manuals of other countries as reference,a modified method is proposed.The new method can reduce the width of the designed platform and the scale of the station.Quantitative analysis should be conducted to determine if the modification significantly affects the circulation of platform before the modified method applied.The pedestrian simulation environment is built according to the stations designed by the original method and the modified one using computer pedestrian simulation tool.The simulation evaluation is also conducted.The evaluation index including pedestrian density,time lost and walking time.Comparisons illustrate that the capacity of the stairway and escalator on the platform determines the circulation efficiency.The modified method can decrease the platform width with little sacrifice of level of service.