Research On The Complexity And Collaborative Development Of Multi-polar Aviation Networks In China’s Four Major Airport Groups

With the rapid development of economy,airport plays an increasingly important role in the integrated transportation hub system and regional economic development.In terms of air transport in China,four major airport clusters in the Beijing-Tianjin-Hebei region,the Yangtze River Delta,the Greater Bay Area and the Chengdu-Chongqing Economic Zone have taken the lead.At present,China’s civil aviation industry has entered the development stage of regionalization and integration with airport groups as the core.In the future,the construction of world-class airports will also promote the coordinated development of comprehensive three-dimensional transportation and the conversion of domestic and international traffic,and embark on the road from a major civil aviation country to a powerful civil aviation country.The coordinated development of airport group has become a growth pole with strong development potential of regions and countries,which can optimize the allocation of civil aviation resources,enlarge the aviation platform effect,and improve the capacity and efficiency of our transportation resources allocation.It can also promote the interactive development of urban agglomeration and airport group construction,effectively play the role of regional economic growth pole,so as to promote the integrated development of regional economy and build a unified,different and cooperative aviation development pattern.It is of great significance to study the structural attribute of Chinese air route network to promote the cooperative development of airport group and scientifically optimize the development layout of Chinese airport route network.Therefore,this thesis takes China’s four world-class airport groups in Beijing-Tianjin-Hebei,Yangtze River Delta,Guangdong-Hong Kong-Macao Greater Bay Area and Chengdu-Chongqing twin City economic Circle as the research object.Based on complex network analysis method,it constructs the air route passenger network model of the country and the four airport groups,and measures the basic characteristic index and centrality index of the route network structure as well as the similarity coefficient among members of the four airport groups.At the same time,based on tabu search algorithm,taking Chengyu airport group as an example,the optimization model of airport group route network is constructed and solved,and the feasibility method to improve the cooperation degree of airport group route network is explored.The results show that: the scale of the national airline network is expanding year by year,the network structure is constantly optimized,and the airline network obviously forms the leading development pattern of the top four airport groups in the geographical area.The route networks of the four major airport groups all show the characteristics of small-world network and scale-free network,with a high degree of centralization and a tendency of tight centralization,uneven route distribution among airports,large differences in accessibility,and prominent control role of hub airports.There are different degrees of isomorphism among the members of the four airport groups,among which the Yangtze River Delta airport group is significantly more homogeneous than the other three airport groups.By constructing the optimization model of airport group route network,reducing the highly repetitive routes within the airport group can effectively improve the degree of cooperation of airport group route network.Finally,based on the research results,this thesis puts forward the strategy of optimizing the cooperative development of the four major airport groups,which provides reference for the future development planning of Chinese airport groups.