Planning Airspace Sector Capacity Assessment Method

With the civil aviation transportation industry developing rapidly,air traffic flow is gradually rising,the current airspace is gradually facing the problem of insufficient resources,and the problem of unbalanced load of controllers has gradually emerged.Re-reasonable planning of the airspace sector is an effective way to solve the problem.The capacity assessment of planning airspace sector is of great significance to the sector's operation.This article first introduces the concept and classification of sector capacity,and briefly describes the commonly used sector capacity assessment methods,which are mainly sector capacity assessment based on the controller's workload and sector capacity assessment based on computer simulation tool.Then,the similarities and differences between the planning airspace sector and the already running sectors are compared,and the practicability of the commonly used sector capacity assessment methods for the planning airspace sector capacity assessment is analyzed.Then,from the perspective of the geometry of the planning airspace sector,this paper establishes a mathematical model for the capacity of the planning airspace sector which based on the geometry of the planning airspace sector,the characteristics of traffic flow and the aircraft interval.On that basis,the conflict risk is used as a safety index for the planning airspace sector capacity assessment,and the conflict risk model for aircraft pairs is established.Using the conflict risk as a constraint to limit capacity to a reasonable level.Taking the Harbin No1 sector as an example,the maximum sector capacity is obtained at an acceptable risk level.Finally,using the simulation tool to verifies the sector capacity.