Capacity Evaluation Of Chongqing Extended Airspace Control Sectors

With the rapid development of China's civil aviation industry in recent years,the operating environment of air traffic has become increasingly complex,some control sectors have operational difficulties and characteristics of both the area control and the terminal(approach)control.Therefore,it is necessary to accurately evaluate the capacity of this control sectors,so as to better implement capacity and flow cooperative management,determine air traffic service capacity and guarantee flight safety.Firstly,this paper systematically discusses the background and significance of the research,as well as the the domestic and foreign research of air traffic complexity and sector capacity evaluation based on controller workload.Then,the concept of extended airspace and a new way of dividing the airspace according to the functions are put forward from the perspective of traditional airspace division and its influence.According to the characteristics of the extended airspace control sector,the key factors affecting air traffic complexity are extracted from the two aspects of airspace structure and traffic situation,and the weight values of each influencing factor are obtained by using the analytic hierarchy process(AHP).Then the evaluation method of controller workload is introduced and analyzed,and the workload model based on controller task and running process is proposed considering sector complexity.Finally,based on the controllers workload sector capacity evaluation method,the capacity evaluation of control sector No.19 in Chongqing extended Airspace is carried out using actual operation data.The results showed that the actual flight flow in this sector has exceeded the capacity value.Therefore,it is necessary to improve the capacity of this sector by reducing the complexity of air traffic in this sector to ensure the operation safety of aircraft.