地铁车站出入口设施优化设置研究

闸机检票效率影响地铁车站的整体通行能力,且作用于乘客等待时间来影响社会效益。为此,从系统优化的角度出发,以稳态条件下单位时间总费用为目标函数,通过研究北京西直门地铁枢纽A口客流出入站的过程,分析影响闸机设置的因素,以客流需求、空间限制、成本投入、疏散要求等为约束条件,采用线性规划的方法,对闸机设置进行优化研究,分别确定普通闸机与加宽闸机的个数。根据优化结果,为科学组织高峰小时客流出入车站提供基础数据和重要参考,检验实设闸机的合理程度。

Optimization Setting of Subway Station Entrance Facilities

Ticket machines limit the subway station capacity and influence social benefits by effecting passengers’waiting time.After examining passenger flows through port A of Beijing Xizhimen subway hub and from the perspective of system optimization,authors took unit time cost in steady state as the objective function and passenger demands,space restrictions,evacuating requirements and cost investments as constraint conditions,and determined how to arrange the ticket machines for port A of Xizhimen subway hub through linear planning and optimization.Optimization results provided basic data and important information for scientifically arranging passenger flow at peak hours and for identifying the reasonability of the ticket machine settings.