摘要
Abstract
The station turnback capacity refers to the maximum number of trains that can turn back at a turnback station per hour.The carrying capacity of urban rail transit is influenced by various factors,including the station turnback capacity.The capacity expansion and enhancement projects aim to increase transport capacity by increasing the traffic density,making the station turnback capacity a critical factor constraining the final outcome of capacity expansion and enhancement.This paper dissects the train turnback process in the capacity expansion and enhancement project of Beijing Rail Transit Line 13,and analyzes changes in turnback times under different turnback conditions.Through parameter optimization and condition comparison,as well as simulation calculation,this study verifies that,under certain conditions,the capacity expansion and enhancement project can improve the signaling system's turnback capacity,thereby achieving the target of capacity expansion and enhancement.It also preliminarily reveals the characteristics of train turnback during capacity expansion and enhancement projects,as well as methods for calculating and optimizing turnback capacity.关键词
城市轨道交通/折返能力/扩能提升/信号系统/行车组织Key words
urban rail transit/turnback capacity/capacity expansion and enhancement/signaling system/train operation organization分类
交通工程
