Analysis And Application Research On The Aircraft Headway Characteristics In Air Traffic Flow

As the important parameter of the microscopic level in the air traffic flow,the aircraft headway is the entry point for the analysis of the microscopic air traffic flow.It is also the link between the traffic volume and the traffic capacity.It is of great significance for the evaluation of the sector capacity.At present,the continuous development of communication,navigation and surveillance technology has further enriched the operation data of air traffic control,which has created conditions for analyzing the regular of air traffic operation by using data mining technology.The analysis of the aircraft headway in the air traffic flow based on the measured data is the basic content of the air traffic flow theory and has broad application prospects in the air traffic field.Firstly,the generation of the aircraft headway data is briefly described.On the basis of this,the relationship between the flow,speed and aircraft headway in the route and the terminal area is discussed from the statistical point of view.It is found that the aircraft headway between the route and the terminal area decreases with the increase of the flow.The headway in the route increases with the increase of the aircraft speed,and the headway in the terminal area increases with the increase of the aircraft speed.The three-parameter Burr distribution model is used to characterize the distribution of the time-headway distribution in the air traffic flow.The time-headway rules of different flow intervals and different speed intervals are described.The results show that the three-parameter Burr distribution model can successfully characterize the distribution of the time-headway distribution.Except for the basic characterization when the flow is small,the other states can be better characterized.Secondly,the characteristics of the aircraft headway are analyzed from the perspective of time series,and the fluctuation of the headway is revealed.Based on the view graph,the time series is mapped into a complex network,and the time-headway fluctuation characteristics are analyzed from the perspective of the network.The analysis shows that the network average degree and the average clustering coefficient decrease with the increasing flow.Finally,based on the aircraft headway,the waypoint capacity model of the theoretical and the actual are established.A method for generating the stable time-series sequence isproposed,and base on the view graph is used to analyze the fluence of headway fluctuation to traffic capacity,and it is verified by using a route network of Sanya sector.It provides a useful reference for the implementation of control strategy and flight time optimization.This paper defines the aircraft headway in the air traffic flow,and uses the measured air traffic operation data to take the microscopic parameters of the aircraft headway as the entry point,revealing the statistical characteristics and fluctuation characteristics of the aircraft headway.Some useful explorations have been carried out on the microscopic characteristics of air traffic flow.