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Analysis on generalized following behavior and complex phasetransition law of approaching traffic flow in terminal airspace

ZHANG Honghai;YANG Lei;BIE Yihui;YIN Suwan;College of Civil Aviation,Nanjing University of Aeronautics and Astronautics;  
Air traffic flow's characteristics analysis is an essential part of air traffic flow theory research and also an important basis of air traffic management.Based on hybrid dynamic characteristics of traffic flow,fuzzy logic method is adopted to present dynamic separation control strategy to reflect controller's decision behavior;"stimulation-reflection"following theory and local first come first serve(FCFS)rules are used to establish generalized following model of arriving flow in terminal airspace.To deduce and analyze emergence behavior of air traffic system,multi-agent simulation platform is setup using Net Logo tool to simulate the arriving flow of ZGGG 02 R.The research reveals the inter-relationship between traffic flow parameters of velocity,density and flow rate,and discovers five phases in arriving air traffic flow evolvement,i.e.,free,unconstrained,semi-stable,Pseudo congestion and synchronization,dissects phase transformation under different traffic organizations,separation standards and Miles-in-trail strategies.The outcome of this paper could lay a foundation for air traffic flow theory,which is helpful for the effective control of air traffic.
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