Journal of Civil Aviation University of China ›› 2025, Vol. 43 ›› Issue (2): 19-30.

• Safe Operations in Integrated Airspace • Previous Articles     Next Articles

Research on evolution of air traffic flow fluctuations based on integration
encoding transition network

  

  1.  1. College of Air Traffic Management, CAUC, Tianjin 300300, China; 2. Research Institute of Civil
    Aviation Development and Planning, China Academy of Civil Aviation Science and Technology, Beijing 100028, China 
  • Received:2024-03-10 Revised:2024-05-05 Online:2025-05-14 Published:2025-05-14

Abstract:

In order to break through the limitations of previous research that only focused on the direction of air traffic flow
fluctuations, and to fully highlight the actual operational information such as flow fluctuation status and airport capacity limitations in the study of air traffic flow dynamic evolution, a fusion encoding transition network construction method is proposed using dynamic coarse-grained encoding method to symbolically encode the airport flow
volume ratio and flow fluctuation gradient and merge into fluctuation modal. Quantitative analysis and qualitative
identification study are conducted on the evolution laws and characteristics of air traffic flow fluctuations from a
complex network perspective, focusing on the 24-hour and coordinated time periods of Beijing Daxing International Airport (Daxing Airport). The research results indicate that the differences in the evolution of air traffic flow
fluctuations between the two periods at Daxing Airport are mainly concentrated at the macro level. The evolution of
flow fluctuation modes has significant transfer aggregation and successive frequency, and there are significant frequent transfer modes. Strong clustering modes and large hub modes effectively characterize the trajectory characteristics of flow fluctuation evolution. These regular features provide a theoretical basis for predicting air traffic flow
fluctuations state and constructing flow management plans, which has practical significance for improving airport
capacity utilization efficiency and optimizing airport time resource allocation.

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