| The scale of air transportation is expanding year by year,and the competition among airlines is increasing.It is one of the key points for airlines to improve their competitiveness to plan a better airline network structure and gain more revenue from the airline network.However,the air transportation environment is dynamic and uncertain,so it needs scientific and reasonable research and methods when planning the airline network structure.Therefore,it is very necessary to carry out a relatively in-depth and systematic research in view of this problem,and the specific work is as follows.Firstly,the basic form of airway airline network is studied.Compared with the city-to-city network structure and cobweb network structure,the hub network structure is more conform to the actual air transportation and can ensure the optimal operating income.Secondly,based on the static influencing factors of the airline network structure design,select the more important researchable city competitiveness value and comprehensive score,airport operation efficiency and service level and other factors,adopt the ELECTRE method to construct the weak dominance relationship between cities,and select airlines.For all the cities served,gradually reduce the city cluster,and select the candidate hub city cluster with high efficiency and in line with the actual route network structure.Thirdly,based on the dynamic influencing factors of the airline network structure design,select the factors affecting passenger demand,such as population size,GDP,tourism conditions,transportation capacity and leg price,and the combined forecasting method combining elasticity coefficient method and regression analysis method is used to improve the weighted gravity.The model(WD-GM)predicts passenger demand,obtains passenger demand in different regions and different periods,so as to plan and adjust the dynamics of the airline network.Finally,considering the influence of constraints such as candidate hub city sets and segment passenger demand on the airline network structure design,a non-strict hub airline network optimization model Nh BM based on multiple constraints is established.The results show that the Nh BM model can work under the condition of good network attributes.Design a better airline network structure,select a reasonable hub city,reduce route network costs,and optimize route network operating income. |