TitleOn optimal cooperative conflict resolution for air traffic management systems
Publication TypeJournal Article
Year of Publication2000
AuthorsBicchi, A, Pallottino, L
JournalIEEE Trans. Intelligent Transportation Systems
Date PublishedDecember
KeywordsAir Traffic Management Systems, Autonomous Vehicles, Hybrid and Embedded Control Systems, Nonlinear Control Systems
AbstractIn this paper, we consider optimal resolution of air traffic conflicts. Aircraft are assumed to cruise within a given altitude layer, and are modeled as a kinematic system with constant velocity and curvature bounds. Aircraft can not get closer to each other than a predefined safety distance. For such system of multiple aircraft, we consider the problem of planning optimal paths among given waypoints. Necessary conditions for optimality of solutions are derived, and used to devise a parameterization of possible trajectories that turns into efficient numerical solutions to the problem. Simulation results for a realistic aircraft conflict scenario are provided. A decentralized implementation of the optimal conflict resolution scheme is introduced that may allow free-flight coordination in a cooperative airspace management scheme. Impact of decentralization on performance and safety is finally discussed with the help of extensive simulations.
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