| Improving flight approach efficiency is the key task of the terminal area.At present,the domestic civil aviation industry is booming and the number of flights is increasing rapidly,but the problems of airport operation efficiency,lack of airspace resources in the terminal area and pressure on safety operation are also becoming prominent.In order to optimize multidirectional approach flow sequencing,reduce control workload,and improve airspace and airport operational efficiency,point merge technology is introduced in the civil aviation air traffic control system.This paper focuses on the approach flight sequencing based on the point merge technology,and proposes a basis for gradually promoting the safe and smooth application and implementation of this technology in the terminal area of China.Firstly,I summarize the current situation of point merge technology and approach sequencing research at home and abroad,analyze the components,configuration and operational control and flight workflow of the point merge system,and compare this system with the traditional approach procedure,the results show that this system can effectively reduce the workload and improve the operational capacity and control efficiency.Then,based on the current operating status of Chengdu Shuangliu International Airport,the relevant parameter values are determined based on the airport’s radio navigation facilities and the relevant design criteria of point merge technology,and the design of the multi-directional single point merge program and the multi-point merge program design of Shuangliu Airport are completed,and calculated and analyzed system static capacity.Based on the single-point merge program,a static model is constructed and a dynamic inbound flight sequencing model with the introduction of the receding horizon control strategy,and the RHC-GA sequencing algorithm is proposed,and the crossover and variation probabilities are adaptively processed,and the simulation example results in a delay reduction of 15% compared with FCFS.The impact of these two parameters on the experimental results is also analyzed.The research overview concludes with a comprehensive summary of the paper,highlighting the main results of the study,and at the same time,planning and outlook for future development and further research on the practical use of point merge systems. |
