本文运用计算机模拟的方法建立了北京环行地下铁道系统运营的FOR-TRAN模型,针对目前我国地铁运营理论研究缺乏的现状与北京地铁环通运行的实际,探讨了地铁运营优化理论,模拟了北京环线地铁在不同运营方案、不同客流参数条件下的运营过程,详细分析了环线这一特定运营模式的运输特性。通过对各种方案的可行性与存在问题的研究提出了相应对策。 In this paper, the FOR-TRAN model of Beijing metro operation is established by computer simulation method. In view of the current lack of research on metro operation theory and the actual operation of Beijing metro loop, this paper discusses the optimization theory of metro operation, Under the different operating plans and operating parameters under different passenger flow parameters, the transportation characteristics of the specific operating mode of loop are analyzed in detail. Through the research on the feasibility and existing problems of various schemes, some countermeasures are put forward.