Research On The Ability And Adaptability Of High-Speed Railway Passenger Station With Normal-Speed Train

Because China’s railway transportation organization model uses a variety of speed and grade train running on the same line, this model makes a lot of high-speed railway station handle with normal-speed trains. In addition, with the gradual increase differences between passenger demand and the existing station ability, many existing stations need to capacity expansion revamp. The other stations in the hub need to handle with the existing transport tasks as the capacity of the station being affected, such as Chengdu station. During its expansion, the Chengdu East Railway Station will handle with its transport tasks. However, because there are some differences between design and construction standards of high-speed railway station and requirements of normal-speed trains and passengers, a series of problems such as "whether the ability of equipment can adapt to the demands","how can we rationally use the abilities of various equipment" and "how to effectively measure the level of adaptability" are importance to the work organization of passenger station.Based on the related research and results, this paper analysis the ability and adaptability of high-speed railway station with normal-speed train according to the characteristics of high speed railway station and organization of different types train, which is convenient for management decision-makers to master the use of equipment and to provide a reference for the work organization. The main focus of the study includes the following aspects:(1) Define the ability adaptability connotation of high-speed railway station from the narrow and broad levels, and analyzes the internal factors and external factors that affect the ability adaptability of high-speed railway station with normal-speed trains in detail based on the broad adaptability connotation. Then this paper makes it clear that elements of adaptability measure are from the comprehensive of "quality" and "quantity" and consider the dynamics of the system, which establishes the overall framework of study on the ability adaptability of high-speed railway station with normal-speed trains(2) Summarize the operating characteristics of high-speed and normal-speed, and give the calculation method of carrying Capacity and passenger equipment capacity, because the time that the different types of the trains occupy the arrival and departure track is different, referring to calculation method of capacity of non-parallel graphs, this paper takes the high-speed train as the standard, gives the method to determine the deduction coefficient of normal-speed train and the process of deduction coefficient method to calculate the capacity of the arrival and departure track.(3) Analysis the relevant factors of the arrival and departure track usages in high-speed railway station with normal-speed train, especially the influence of passenger equipment, According to this, this paper proposes the interval requirements of two trains occupy the arrival and departure track on the both sides of same platform or adjacent platforms. Then proposes a0-1quadratic optimization model of arrival and departure tracks was established from two targets:the safe assurance for both train and technical operation, and the effective utilization of technical equipment for train operation, and design a genetic algorithm to solve it. This will not only achieve the optimize use of the throat and the arrival and departure track, but also promote the rational use of passenger equipment, and make a great significance to improve the ability adaptability of equipment.(4)Based on the optimized scheme of utilization of arrival and departure track, this chapter studies the capability adaptability of equipment in the station. The ability adaptability of throat and the arrival and departure track mainly result in the equipment load and balance use. We use the occupancy rates, the average occupancy times and standard deviation to measure. The capability adaptability of passenger equipment mainly result in the quality and quantity. On this basis, this paper establishes membership functions of adoptability of the capacity from two aspects, which are the equipment load and the passenger service level. At the same time, considering the volatility of passenger flow, we calculate the capability adaptability of equipment in a day, and use weighting method to determine the integrated capabilities adaptability of passenger equipment. As the worst device limits the ability of the station, it is recommended that the values express the integrated capabilities adaptability of the passenger equipment.(5)Take Chengdu East Railway Station for example, analysis its ability and adaptability with a lot of normal-speed trains during the expansion of Chengdu station according to the framework and method of adaptability analysis, which helps us to find the problem of equipment use, and propose recommendations for the optimization and adjustment.