Research On Optimization Setting Of Periodization Waiting Window For High-speed Railways

With the continuous improvement of the high-speed railway network and the need for passengers to travel at night,Sunset-departrue and Sunrise-arrival Trains(SST)in response to market demand.The trains arrive at 19:00-23:00 on the same day and arrive at 6:00-10:00 the next day,which the total time is 7-15 hours.Due to its unique range of start and end time,it can meet the needs of passengers to leave after work(or dinner),rest after getting on the train,and work after getting off(or activities such as tourism),which greatly facilitates passengers' travel.However,the high-speed railway needs to set up cyclical maintenance time window in a fixed period of time at night,and the length of time for the opening of the cyclical maintenance time window has certain requirements,which arouses the contradiction of SST between the passenger train plan and setting of maintenance time window,which seriously affects the development of SST.The trains have not been traveled daily,and with the continuous improvement of the high-speed rail network,the networked travel will become a demand for passenger flow.Therefore,in order to realize the daily and networked operation of SST in the future,this paper focuses on following work:1.Analyze the status of research at domestic and foreign,and put forward the technical difficulties of the SST' operation,that is,how to solve the contradiction between the passenger train plan and the setting of maintenance time window,and realize the daily and networked operation of the SST;2.Analyze the operation mode and maintenance time window mode of the conventional high-speed railway,combine the daily and network needs of the passenger,propose a periodization waiting mode;3.Define the definition and characteristics of the periodization waiting mode,analyze the reasonable distance traveled by SST,analyze the type of waiting plan,the opening time of the SST,the range of the waiting station,the time range of the waiting time,and the ability based on the waiting,etc.;4.Combine the characteristics of the periodization waiting mode,aiming at the shortest time of the waiting time,the technical characteristics of the periodization waiting mode,the technical requirements of the train operation,and the opening time requirements of the sunroof,etc.,to establish a coordinated optimization model of periodization waiting mode about the passenger train plan and setting of maintenance time window.5.Take the Beijing-Guangzhou high-speed railway and the Wuhan hub as an example,and run the model,realize the regular daily and networked operation of SST.Give recommendations for coordinated optimization of periodization waiting mode about the passenger train plan and the setting of maintenance time window.Focusing on the practical problems of high-speed railway development,the paper comprehensively considers the passenger flow demand and the characteristics of the high-speed railway network,and conducts an in-depth analysis of the periodization waiting mode to realize the regular daily and networked operation of the SST.The research in this paper has certain reference value for the development of high-speed railway,which lays a certain theoretical research foundation for the development of the train from the high-speed railway.