Empirical analysis of airport network and critical airports  

作　　者：Cong Wei Hu Minghua Dong Bin Wang Yanjun Feng Cheng 

机构地区：[1]College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China [2]National Key Laboratory of Air Traffic Flow Management, Nanjing 211106, China [3]The 28th Research Institute of China Electronics Technology Group Corporation, Nanjing 210000, China

出　　处：《Chinese Journal of Aeronautics》2016年第2期512-519,共8页中国航空学报（英文版）

基　　金：co-supported by the National Natural Science Foundation of China(No.61304190);the Fundamental Research Funds for the Central Universities of China(No.NJ20150030);the Natural Science Foundation of Jiangsu Province of China(No.BK20130818)

摘　　要：Air transport network, or airport network, is a complex network involving numerous airports. Effective management of the air transport system requires an in-depth understanding of the roles of airports in the network. Whereas knowledge on air transport network properties has been improved greatly, methods to find critical airports in the network are still lacking. In this paper, we present methods to investigate network properties and to identify critical airports in the network. A novel network model is proposed with airports as nodes and the correlations between traffic flow of airports as edges. Spectral clustering algorithm is developed to classify air- ports. Spatial distribution characteristics and intraclass correlation of different categories of air- ports are carefully analyzed. The analyses based on the fluctuation trend of distance-correlation and power spectrum of time series are performed to examine the self-organized criticality of the net- work. The results indicate that there is one category of airports which dominates the self-organized critical state of the network. Six airports in this category are found to be the most important ones in the Chinese air transport network. The flights delay occurred in these six airports can propagate to the other airports, having huge impact on the operation characteristics of the entire network. The methods proposed here taking traffic dynamics into account are capable of identifying critical air- ports in the whole air transport network.Air transport network, or airport network, is a complex network involving numerous airports. Effective management of the air transport system requires an in-depth understanding of the roles of airports in the network. Whereas knowledge on air transport network properties has been improved greatly, methods to find critical airports in the network are still lacking. In this paper, we present methods to investigate network properties and to identify critical airports in the network. A novel network model is proposed with airports as nodes and the correlations between traffic flow of airports as edges. Spectral clustering algorithm is developed to classify air- ports. Spatial distribution characteristics and intraclass correlation of different categories of air- ports are carefully analyzed. The analyses based on the fluctuation trend of distance-correlation and power spectrum of time series are performed to examine the self-organized criticality of the net- work. The results indicate that there is one category of airports which dominates the self-organized critical state of the network. Six airports in this category are found to be the most important ones in the Chinese air transport network. The flights delay occurred in these six airports can propagate to the other airports, having huge impact on the operation characteristics of the entire network. The methods proposed here taking traffic dynamics into account are capable of identifying critical air- ports in the whole air transport network.

关 键 词：Airport network Critical airport Spatial correlation Spectral clustering Power-law distributionPower spectra 

分 类 号：V35[航空宇航科学与技术—人机与环境工程]