Research on Train Over-taking Organization of Urban Rail Transit

摘要

Study on train over-taking organization of urban rail transit and propose calculation methods of local train's waiting time as well as the length of the cross section. Combining with actual operation of urban rail transit, the effects of departure interval, tracking interval and the maximum operating speed difference of express/local train on local train's waiting time and the length of the cross section are analyzed. The result shows that with the increasing of express/local train's departure interval the local train's waiting time displays periodic variation. Under specific parameters, the cycle is 54s. In a single cycle, the waiting time increases linearly with the departure interval. If the tracking interval is within 90-150s and the departure interval is greater than 133s, the local train's waiting time increases with the increase of tracking interval. If the overtaking occurs in the section, the length of the cross section increases with the increase of the tracking interval. If the tracking interval increases from 90s to 120s, the length of cross section will increase by 25.00% when the maximum operating speed difference of express/local train is 0km/h. And under the same tracking interval, the length of the cross section decreases with the increase of the maximum operating speed difference. If the maximum operating speed difference between express/local train increases from 0km/h to 20km/h, the length of the cross section will decrease by 25.00% when the tracking intervals is 90s.