Research On Airspace Capacity Assessment For Airport Terminal Area

Airport terminal area air route network,as the last component of civil aviation transport,is to ensure the efficient operation of air traffic "last mile" in the air.Based on the complex network theory,the airport terminal area route network model is constructed,the complex network characteristics of the model are analyzed,the route impedance coefficient is put forward,and the calculation method of terminal area network capacity and the main influencing factors are studied.On this basis,the Airtop simulation tool is used to simulate and analyze the factors affecting the capacity of terminal area network,and the optimization scheme is proposed to provide support for the future planning and development of the airport.The airport terminal area route network model is based on the terminal area route point as the node,the route as the side,and then according to the terminal area control operation characteristics adjusted after the establishment of airport terminal area route network model.By studying the complex network characteristics(degree,average path length,cluster coefficient,medium number,etc.)of route points and edges in terminal area network,the physical significance and statistical characteristics of route routes in terminal area network are identified.The results of the empirical study show that the terminal region route network is characterized by uncompact group,negative matching of route network,and the nodes with large degree value or weighted degree value are the central axis nodes.Study on network congestion identification of terminal area based on traffic capacity.Firstly,the definition of terminal area network capacity is defined,and the capacity of airport terminal area is evaluated and calculated using mathematical modeling method and saturated flow rate method,which are widely used in capacity evaluation.Taking Harbin airport as an example,the more accurate and efficient saturated flow rate method is selected after comparative analysis to evaluate terminal area capacity.On this basis,the key route point identification index of terminal area network is proposed,and the key nodes in route network are identified through simulation,so as to prepare for the analysis of influencing factors.Analysis and research on the factors affecting the capacity of terminal area network.According to the route points prone to congestion in the terminal area network,the configuration of flight flow and network structure of the terminal area were adjusted based on route impedance and route point interface.using Airtop fast simulation software simulation assessment in the terminal area of the adjusted Conclusion 1:the average flight flow in terminal area according to route impedance can effectively improve the capacity of airport terminal area network;Conclusion 2:there is a negative correlation between the terminal area network dielectric number and the terminal area network traffic capacity.The route structure can be adjusted according to the network dielectric number,so as to improve the overall traffic capacity of the terminal area.