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Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

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Trajectory Specification Language for Air Traffic Control.

Journal of advanced transportation·2020
Same author

Algorithms for Control of Arrival and Departure Traffic in Terminal Airspace.

Proceedings of the Institution of Mechanical Engineers. Part G, Journal of aerospace engineering·2020
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Trajectory Specification for Terminal Air Traffic Control: Conflict Detection and Resolution.

Russell A Paielli1, Heinz Erzberger1

  • 1NASA Ames Research Center, Moffett Field, California, 94035.

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|February 6, 2020
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Summary

Trajectory Specification ensures aircraft separation by defining dynamic bounding spaces, guaranteeing safety even during air traffic control system failures. This method proved effective in resolving conflicts in simulations.

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Area of Science:

  • Aviation safety
  • Aerospace engineering
  • Control systems

Background:

  • Current air traffic control (ATC) systems rely on tactical separation, which can be vulnerable to system failures.
  • Ensuring safe aircraft separation is paramount for air traffic management automation.
  • Dynamic adjustments to flight paths are needed to enhance safety and reliability.

Purpose of the Study:

  • To introduce Trajectory Specification, a method for defining aircraft flight paths with dynamic tolerances.
  • To present algorithms and software for conflict detection and resolution in terminal airspace.
  • To evaluate the feasibility and effectiveness of Trajectory Specification in a simulated environment.

Main Methods:

  • Defining aircraft trajectories within a time-based bounding space using dynamic tolerances.
  • Developing algorithms for detecting and resolving conflicts between specified trajectories.
  • Conducting fast-time simulations of a full day of air traffic in a major terminal airspace.

Main Results:

  • All conflicts between specified trajectories were resolved in near real-time during simulations.
  • The study demonstrated the computational feasibility of the Trajectory Specification concept.
  • Preliminary operational feasibility was shown through successful conflict resolution.

Conclusions:

  • Trajectory Specification offers a robust method for guaranteeing safe aircraft separation.
  • This approach enhances safety and reliability for air traffic control automation.
  • It reduces reliance on traditional tactical backup systems, improving operational efficiency.