Research On Capacity Of Large Scale Railway Passenger Stations

In recent years,with the rapid development of China's high-speed railway,people's demand for travel speed has greatly improved,making railway passenger transportation express characteristics as large volume,high speed and high frequency.With the Sixth Great Speed-up of Railway in China,it makes more and more large scale railway passenger stations handle with EMU.Under this new situation,higher requirements are put forward for the capacity of large scale railway passenger stations.Because the large scale railway passenger station is a complex system,different from the ordinary railway passenger station,its capacity is affected by various influencing factors,it is difficult to accurately determine its actual capacity.Therefore,in order to adapt to the market demand and make full use of the technical equipment of passenger stations,it is of great significance to analyze and study the capacity of large railway passenger stations.Based on the previous research results,this paper studies capacity calculation methods and expression methods of passenger stations based on the characteristics of large scale railway passenger stations,in order to correctly obtain the existing capacity of passenger stations.The main research contents of this paper are as follows:This paper summarizes the operation,equipment,work organization and organization management system of large scale railway passenger stations,focuses on the technical operation process,occupation time standard of normal speed and high speed trains and the difference between the train operation of normal speed trains and high speed trains.Based on the analysis of the traditional calculation method of passenger station capacity,the inadaptability of the existing calculation method for large scale railway passenger station is analyzed.Combining with the calculation method of the section carrying capacity,aiming at the characteristics of large scale railway passenger stations,the discount coefficient method is proposed to improve the calculation method of carrying capacity.Referring to the data statistics method of passenger station's carrying capacity,the parameter value is determined based on mathematical statistics,and the calculation method of passenger coach preparing stations is improved.The influencing factor of the leisure coefficient is analyzed,and the influencing factor is quantified.According to the grey system theory,a grey multiple attribute decision making model with completely unknown attribute weight information is established,and the value of the leisure coefficient is determined by this model.Based on the Lorenz curve and the Gini coefficient,a method for calculating the degree of imbalance is proposed on the basis of the imbalance of equipment occupied of passenger stations.Based on Bayesian statistical theory and uncertainty of operation of large railway passenger stations,this paper introduces the expressing method of passenger station capacity,points out the scientificity of interval estimation,and puts forward the expressing method of Bayesian interval estimation of passenger station capacity.