Research On Simulation And Optimization Of Passenger Flow Line In Intercity Railway Underground Stations

Under the rapid development of China’s railway industry,in order to strengthen the connection between cities,the construction of intercity railway traffic has begun rapidly.In the aspect of intercity railway stations construction,in order to improve passenger travel efficiency and solve the contradiction between the large area of the station and the tightness of urban land utilization effectively,intercity railway underground stations were created.It is a limited number of this new type transportation buildings which are put into service,and few scholars have conducted in-depth research on it.However,due to the convenience of this type station for passengers,more than 10 provinces and cities in China have built inter-city railway underground stations until 2017,so the underground station has a certain research value as a new trend of railway transportation construction.it is still necessary to explore and research whether the design of the station passenger flow line can meet the commuting needs of the peak passenger flow under long-term operation.Therefore,this paper predicts the potential problems of passenger flow lines under the condition of long-term peak passenger flow in the intercity railway underground stations by the way of analogue simulation,which is based on the current situation of passenger flow lines,and proposes the countermeasures in advance.The specific optimization strategies which are proposed will also play a certain reference role in the design and construction of the intercity railway underground station in the future.First of all,the characteristics of the space and streamline of the intercity railway underground station is introduced.Combining the basic theory of the relevant streamline and the research results of the existing scholars,and the factors affecting the passenger flow stream are analyzed,by the way of combining the basic theory of the relevant streamline and the research results of the existing scholars.At the same time,the series of parameters related to the streamline are selected thouhg combing with the streamline analysis method used,which provide a quantitative basis for the case study.On the basis of the above theoretical research and discussion,aiming at the influence of the spatial form and the influence of the functional facilities on the streamline,three representative stations are selected from the Ganhui Intercity Railway Line and two representative stations are selected from Changzhutan Intercity Railway Line.At the time of the survey,the current passenger flow data and facility throughput data were obtained through on-site measurement,and the research site was simulated based on them.The simulation situation of each station is consistent with the actual situation of the observation and the relevant feedback of the passenger by debugging and correcting relevant parameters.Ensuring the validity of the correlation coefficient setting,it is applied to the simulation of the long-term peak passenger flow situation,and predicts the problems that will occur in its streamline.Finally,the article proposes a solution strategy from space,function and facilities.Under the premise of not changing the organization of the site space,the original station design is reorganized according to the proposed strategy,and the optimization scheme is obtained.For the purpose of verifying the the optimization scheme is feasible,the simulation method is used.