【摘要】 为进一步明确铁路运输"流"、"线"的相互作用机理,分析了列车到达晚点对技术站车流接续造成的影响,建立了以中转车平均停留总时间最小为优化目标、以车流接续等为约束条件的技术站广义配流模型.在此基础上,随机产生符合到达列车晚点分布规律的晚点时间,将其加载到列车到达时刻,生成晚点列车群.将加载了随机晚点时间的列车群输入配流模型,进行仿真计算.以出发列车的晚点率、晚点总时间等为指标,分析了不同晚点条件下的列车群在同一作业方法和作业条件下不同的车流接续情况.分析结果说明,单时段列车晚点对技术站车流接续的影响是不确定的,多时段统计条件下的晚点影响虽因站存车数量、晚点率、总晚点时间、列车编组计划等的不同取值而呈现出不同的车流接续结果,但仍有较强规律.本文的工作验证了"流"、"线"协同优化的必要性及可行性.更多还原

【Abstract】 In order to clarify the interaction mechanism between the flow and lines in railway system,the influence of train delay on wagon flow connection at technical stations was analyzed. By setting the minimum average residence time of transferring wagons as the optimization objective,a generalized wagon-flow organization model for technical stations was established with the constraints such as wagon flow connection. Based on this model,delay times were randomly generated following distribution rule of train arrival delay and added to train arrival time. Thus,a set of delaying trains was formed and input into the generalized wagon-flow organization model to conduct simulation calculation. In the different cases of train delay,taking the delay rate of departing train and total delay time as the indexes,the wagon flow connection results under the same operation were analyzed. The analysis results show that the effect of train delay for a single schedule period on wagon-flow connection at technical stations is uncertain. However,the effect of train delay for multiple schedule periods shows strong regularity though the different values of the number of wagons at stations,delay rate,total delay time,and train formation plan,etc.,lead to different wagon-flow connection results. Finally,the necessity and feasibility of joint optimization of flow and lines was validated.更多还原