Analysis and summary of passenger flow characteristics are crucial for the improvement of subway planning and operation management. This paper focuses on three aspects: 1. The rules of passenger flow growth since 2007, with the influence of newly-opened subway line on the subway network, existing lines and related stations emphasized; 2. Passenger flow characteristics of subway network, including time-space distribution of boarding and alighting scale, riding distance distribution trend, time-space distribution of transfer passenger flow, unbalance of passenger flow during the peak hour, and characteristics of cross-section flow; 3. Analysis on issues to be addressed for network planning, engineering design, transport organization based on current passenger-flow characteristics.%轨道交通网络化客流特征分析与总结,对于提高轨道交通规划设计与运营管理水平具有重要作用.分析北京轨道交通各条线路的客流成长规律,其中重点分析2007年以来每开通1条新线对既有线网、线路、所涉及车站的影响；分析线网客流特征,主要包括分析各线上下车量时空分布规律、乘坐距离分布趋势、换乘客流时空分布规律、高峰小时客流特征及不均衡性、断面流量特征等；从目前的客流特征出发,分析线网规划、工程设计、运输组织时应注意的若干问题.
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