Research On Miles-in-Trail Policy In Air Traffic

With the continued development of civil aviation and air traffic growth, the contradiction between airspace resources and increasing air traffic is becoming more and more prominent. The theory of air traffic flow management has made a great contribution to alleviate air traffic congestion. Currently, air traffic control managers usually control air traffic flow by subjecting MIT(miles-in-trail) restrictions, thus easing sector congestion.However, the MIT subjected by air traffic control managers are usually produced according to their experience and a simple calculation without enough scientific theories. As a result,a large number of flights may be delayed. So the study of scientific and effective strategy in MIT(miles-in-trail) is significant.Analysis on the transfer of control from the implementation process, the implementation of interval of the purpose and the reasons, and combined with the actual MIT data, summarized two kinds of control transfer interval strategy – single-stage MIT strategy and multi-stage MIT strategy. Set single-stage MIT strategy to solve the handover interval between adjacent sectors transfer of control strategy for single level interval,interval control over a single objective programming model, put forward a kind of multi channel coding genetic algorithm to solve it. Multi-stage MIT strategy handover strategy to solve the communication problem between the interval of a plurality of control sectors control over intervals for transfer of control strategy, multi interval bi-level programming model is established, and it can be solved by using genetic algorithm and heuristic algorithm. And using the simulation data of the utility model is validated.