大小交路嵌套方式下城市轨道交通列车最优车组数开行方案

On Operation Scheme of Urban Rail Transit in Long / Short Routing Mode

根据客流量的分布及大小交路列车共线运行的特点,以投入运用的车组数最少为目标,建立了列车均衡开行方案优化模型,得出在运用车组最少的情况下各行车组织参数的设置,包括折返点位置选取、大小交路的行车间隔和周期、列车在中间站的折返时间及运用车组数等。模型考虑了大小交路行车的相互影响问题,在满足行车安全性及线路客流需求的前提下,采用基于大交路的行车间隔来调整小交路的行车间隔及行车周期的思想,描述了各参数之间的制约关系。以成都地铁2号线为背景,利用本模型进行测算,研究结果能够达到预想的效果。为运营企业的行车组织安排,特别是运行交路设计及车辆配备等实际工作提供了理论参考依据。

According to the spatial distribution of passengers and the characteristics of shared-path running for longshort routing, and aiming at the least rolling stock train, the model for optimized and balanced train operation scheme is established. Then, every organizational parameter corresponding to this object is calculated. The parameters include selection of re-entry point position, running interval and cycle time of long-short routing,re-entry time at the intermediate station and the number of rolling stock. The model takes the running interaction between long and short routings into account, and in the premise to meet the driving safety and the demand of passenger flow. The long routing running interval is used to adjust the short routing running interval and driving cycle time, the relationship between each parameter is described. In this paper, Chengdu Metro Line 2 is taken as the background, and the model is used for calculation, hoping the desired results could be achieved. This research provides a theoretical basis for the operation enterprises of urban rail transit to arrange train organization,especially for the line routing design, allocation of vehicles and other practical works.