Research On The Design Of Aircraft Arrival And Departure Windows In Multi-runway Airport

With the growth of civil air transport demand,the number of flights passing through the terminal area is increasing rapidly,and improving the efficiency of airport operations has become a top priority.The multiple runway configuration can relieve the airport operation pressure brought by the increase of flight flow,and also put forward higher requirements for flight safety.Therefore,research on shortening the minimum safety interval between aircraft and relieve the operating pressure in terminal area under the premise of ensuring safety has important practical significance.The main work of the thesis is as follows:Firstly,in the aspect of safety separation of short-range parallel runways,it is the first time to construct an arrival and departure window to avoid the safety departure conflict caused by approach aircraft go-around under one-drop mode.Based on the classical position error probability model,the collision risk assessment model between go-around and departure aircraft in the configuration of close range parallel runway is established.Considering the change trend of the instantaneous velocity of the go-around and departure and the theoretical position relationship,the kinematic equation with time as the variable is established.Combined with the risk assessment model,the concept of the arrival-departure window is systematically introduced and the progressive assessment model is designed Finally,the example results show that the planned arrival and departure window can effectively ensure the distance between departure aircraft and go around aircraft to meet the requirements of safe operation,so as to assist the controller to determine the departure permit release time.Secondly,in the aspect of safety separation of cross runway,the entire conflict domain of cross runway is redesigned to keep the flight separation between go-around and departure aircraft.The entire conflict domain of cross runway conflict is defined as rear window and front window,which control the risk of the process of approach and departure simultaneously and the risk of the process of go-around and departure in the meantime.The collision risk assessment models of the rear window and the front window of the cross runway are established in turn,and the influence of the runway cross angle on the lateral,longitudinal and vertical directions and the overall risk is studied.Taking the cross runway group of Wichita airport as an example,the results show that the entire conflict domain ranges from 5.9nm before the approach runway entrance to 3.7nm after the entrance.Compared with the time-based wake interval constraint in the regulations,the entire conflict domain of the cross runway can finally determine the safe interval between go around and departure,and can also provide reference for the separation of the future domestic cross runway configuration under related operation mode.Thirdly,in the aspect of the optimization of the arrival and departure window and the improvement of the risk assessment model,considering that the track deviation tolerance obeys the incomplete normal distribution(only deviates from the nominal track within a certain range),the collision risk assessment model is proposed for modification and compensation.The aircraft position deviation tolerance is classified and the actual probability of the flight around is considered to improve the evaluation model of arrival and departure window under different track deviation tolerance.Taking the arrival and departure rear window of the cross runway of Wichita airport as an example,the range adjustment of the entry and departure windows with different accuracy is calculated according to the comparison of the position deviation tolerance levels.