“湿轨模式”下翔宇路南站上行方向换乘的运行图优化方案

Optimization Scheme of Train Working Diagram for Upward Transfer at Xiangyulunan Station Under“Wet Track”Mode

雨雪霜冻等恶劣天气下,调度员会将列车调整为“湿轨模式”,此时列车由于旅行速度降低导致晚点,使列车在换乘车站的实际到发时间晚于图定时间,影响换乘关系,降低城市轨道交通系统的服务效率。“湿轨模式”下列车晚点可以通过列车运行数据统计分析,针对这种单一线路可预见的列车晚点,为保证线网换乘质量,可对与其换乘的线路运行图进行优化。通过调整运行图冗余时间的分配,完善换乘关系,还可以减少对线网中其他线路的影响。以南京地铁宁高线与机场线在翔宇路南站上行方向同站台换乘为例,优化宁高线在“湿轨模式”下产生晚点后与机场线的换乘关系,并将优化后的机场线运行图投入使用,增加优质换乘列次,减少乘客换乘等待时间,提升地铁服务质量。

In severe weather such as rain,snow,and frost,a dispatcher shall adjust trains to the“wet track”mode.At this time,trains will be delayed due to the reduction in travel speed,which affects the transfer relationship and reduces the service efficiency of the urban rail transit system.Under“wet track”mode,the train delay can be statistically analyzed through train working data.For the foreseeable train delay of a single line,the existing train working diagram can be optimized to ensure the transfer quality of the line network.By adjusting the allocation of redundant time in the train working diagram and improving the transfer relationship,the impact on other lines in the network can also be reduced.In the case of Line S9 and Line S1 of Nanjing Metro,for which passengers transfer on the same platform in the upward direction of Xiangyulunan Station,this paper optimized the transfer relationship between them upon the train delay of Line S9 in the“wet track”mode.Finally,the optimized working diagram of Line S1 was put into operation to increase the number of high-quality transfer trains,reduce the waiting time for passengers to transfer,as well as improve metro service quality.