| With the continued growth of air traffic flow, various data and studies have shown that air traffic congestion caused by irrational terminal airspace structure are more and more serious. Through the terminal airspace structure optimization studies, not only to ensure the terminal area airspace security and improving the capacity of terminal airspace, but also greatly improve and enhance the national airspace service capabilities.This paper considered China's actual airspace situation, and described the problem focus on the optimization of terminal airspace sector structure. For some dense terminal area which has multi-airports or multi-runways, traditional sectorization is not suitable. So this paper based on a functional sectorization method which under the condition of arrival and departure separation and extends the concept of sector, which use route segment as basic optimum units, regroups them based on two-layer sector optimum model, to make the airspace more efficiently used.Through the in-depth analysis of the terminal airspace operation and its influencing factors, this paper constructured the design and simulation integration model of the terminal airspace, and discussed the constructor method of the system universal. Then, develop the design and simulation integration system of terminal airspace based on SuperMap GIS. Finally, take the Shanghai terminal airspace as an example, making a series of design and simulation on the actuality and the new project. The analyses of the simulation results have good verify the validity and feasibility of the system model. |