Study On Traffic Capacity Of High-speed Railway And Metro Transfer Facilities At Chengdu East Railway Station

The comprehensive transportation junction is the standard configuration of urban development.It is an important task to connect the internal railways and other modes of transport transfer within the hub,and high-speed railway and urban rail transit account for a large proportion of passenger transfer within the hub.Chengdu East Railway Station is an important transportation junction of Chengdu.It is the link of Chengdu-Chongqing City Group which is connected to the high-speed railway city group in western China.The future passenger flow is huge and it is necessary to give full play to the “distribution” function and complete the passenger flow transfer in the station.In 2018,the average daily arrival of Chengdu East Railway Station was 80 pairs.During the Spring Festival,the average daily arrival number was 200,resulting in a large number of passenger exchanges at the East Station for distribution and transfer.Therefore,studying the traffic capacity of high-speed rail to transfer subway equipment has a great practical significance for station construction and operation.Taking Chengdu East Railway Station as an example,this paper first analyzes the status quo of Chengdu East Railway Station's transfer status and streamline,facilities and equipment characteristics.It makes an in-depth analysis of the transfer flow from the perspective of the proportion between railway and other transfer modes and the law of passenger flow to the station,and probes into the current transfer situation of Chengdu East Railway Station.According to the different routes taken by passengers,the passenger flow lines are divided into 6 categories,and the bottleneck point of the flow line is searched to determine the object of research facilities and simulation.Based on the actual investigation of Chengdu East Railway Station,the differences of transfer passenger flow characteristics between high-speed rail-subway transfer stations and subway-subway transfer stations were compared and analyzed from three aspects,namely,arrival time rule of transfer passengers,physiological attribute of transfer passengers and traffic attribute.On this basis,The high-speed rail automatic ticket gate simulation capacity and calculation capacity are 17% difference.Considering the simulation software and passenger influence factors,17% is the normal error.When the passenger flow reaches the bottleneck of the facility capacity,adding an automatic ticket gate is the optimal solution..Finally,Anylogic simulation software is used to verify the model.The simulation results show that under the same conditions,the capacity of transfer facilities in the hsr-metro transfer station is smaller than the designed capacity.Therefore,it is more likely to cause congestion,indicating that the calculation method of transfer facility capacity established in this paper based on the characteristics of transfer passenger flow of high-speed railway and subway is more reasonable.When the congestion of the transfer facility is more serious,the passenger flow control is carried out,and the effect is more obvious.