Research On Aircraft Dynamic Taxi Scheduling Of Hub Airport

The airport flight area is the most frequently used surface resource.With the rapid development of China's civil aviation industry,the operational pressure of the airport flight area is becoming increasingly serious.Improving the taxi scheduling in the flight area can effectively improve the operational efficiency of the surface resources.It is the main method to solve the resource shortage of the airport surface.Optimizing the aircraft's taxi scheduling strategy can effectively improve the traffic safety and efficiency of the surface.This paper analyzes the key issues of airport surface taxi scheduling.Analyzes focuses on three types of conflicts that occur during taxiing aircraft and coping strategy.Emphasizing dynamics,based on Dijkstra dynamic path planning of space-time network,a dynamic scheduling model for large airport taxiways is established.Monitoring of aircraft operating conditions and airport surface resources in realtime,scheduling aircraft taxi dynamically.Introduce distance impedance,steering impedance and multiobjective optimization of aircraft taxiing path.Avoid conflicts in aircraft taxiing in advance by conflict prediction and reduce the number of conflicts.The effectiveness of the model was verified by using a large domestic airport as a simulation object.On this basis,the model is further extended,and the heuristic algorithm is used to coordinate the aircraft taxiing schedule model.A dynamic cooperative scheduling model for large airport aprons and taxiways is established.Integrated scheduling from the overall airport surface to improve aircraft taxi scheduling benefits.The simulation results show that the large airport apron and taxiway dynamic collaborative scheduling model can effectively schedule the aircraft taxiing and improve the operational efficiency of the airport surface.The designed algorithm can effectively solve the model and meet the timeliness requirements.