| Modern air transport industry pays more attention to the urbanization of airports and the convenient connection between cities and airports.Some airports have begun to build urban terminals in conjunction with urban transport hubs in order to enhance their connections with the city and enhance their attractiveness to passengers.The metro terminal is an urban terminal built in the rail transit station,which provides passengers with flight dynamics inquiry,ticketing,check-in,baggage checking and security check,traffic transfer and other services.Compared with ordinary urban terminals,subway terminals make full use of the fast and stable characteristics of rail transit,which can fully meet passengers’ requirements for timeliness and convenience of travel services.At present,the layout of subway terminal construction is still in the initial stage,and the relevant theoretical research is few.Based on this,this paper studies the site selection and layout of metro terminals,in order to supplement and improve the theoretical system of urban terminal planning.The main research contents of this paper are as follows:(1)Based on the credit card swiping data of the subway network in Beijing,the travel demand of subway air passengers is analyzed from the time and space dimensions.Based on the analysis of the factors affecting air passenger travel,the characteristics of passenger travel behavior are analyzed by designing a questionnaire.Using the method of SPACE L,the subway air passenger travel network is constructed,and the travel impedance functions of two types of passengers are respectively constructed for four sections in the travel network.A discrete travel choice behavior model of passengers is constructed,and the relevant parameters are fitted by multiple linear regression method.(2)This paper analyzes the layout factors and construction principles of metro terminals.On the basis of the existing research,considering the impact of subway terminal construction on user travel and the cost of checked baggage in the terminal,a metro terminal location model based on double-layer multi-objective programming is constructed.From the point of view of the terminal builder,a multi-objective optimization model with the objective function of the minimum cost of construction and vehicle consignment,the minimum total travel impedance and the maximum passenger flow attracted by the terminal is constructed in the upper layer.From the perspective of passengers,a user equilibrium assignment model with minimum travel impedance as the objective function is constructed in the lower layer.According to the characteristics of the model,a combined algorithm based on the non-dominated sorting genetic algorithm and Frank-Wolfe algorithm was designed to solve the model.(3)Taking the site selection of subway terminal of Daxing Airport as an example,the advantages and disadvantages of different schemes are analyzed and compared by calculating the optimal solutions under different construction number schemes.The results show that the model and algorithm proposed in this paper are feasible.The research can provide a theoretical reference for the construction of metro terminals in the airport to further strengthen the connection between the city and the airport.40 figures,7 tables and 99 references. |
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