부산대학교 도서관

Measuring and analyzing the air accessibility of each airport city in world-class airport clusters is a prerequisite for optimizing the design of the route network and contributing to the function of high-quality power sources such as Beijing-Tianjin-Hebei. This paper calculates the air accessibility of 42 cities located in China's four world-class airport clusters using the weighted frequency air accessibility model, and finds that the air accessibility of each airport city shows a pattern of vertically steady improvement and horizontal polarization. The accessibility of international hubs, regional hubs, and non-hub cities shows a significant gradient decline. This implies that international aviation hub cities have significant comparative advantages in terms of aviation accessibility, owing to their robust economic foundation, large population size, and high frequency of flight operations. In the future, airport cities within China's four world-class airport clusters should further enhance flight connectivity between international aviation hubs, thereby establishing a primary backbone channel for domestic air transportation while fostering local economic development and attracting more residents. Meanwhile, it is crucial to effectively promote coordinated development among international aviation hubs, regional aviation hubs, and non-hub airports through strategic linkages in order to fully leverage the carrier role played by world-class airport clusters as catalysts for urban clusters. This paper presents a new exploration for more objective measurement of urban airport aviation accessibility and also provides an important reference for optimizing the design of air route networks among China's four world-class airport clusters.