Optimization of Approach Trajectory Considering the Constraints Imposed on Flight Procedure Design

Due to recent growth of air traffic demand, inefficiency in flightis becominga more and more important issue. However present flight trajectory is not completely optimized because of the existence of difficulties in flight procedure design.This paper describes a method to optimize the approach procedure in terms of fuel efficiency. In proposed method, route is parameterized by position of each waypoint and speed above them.Then assuming constant acceleration and point mass model, total fuel consumption is calculated.Optimizationis conducted with constraints imposed upon flight procedure design by using genetic algorithm. We applied the method to approach procedure to a real airport and more efficient trajectory is obtained.