Aerial safety separation is an important indicator to evaluate the flight performance of medium and low speed combination aircraft. In this paper, concept impact box safe corridor will be introduced for air problem composite aircraft, a numerical method quickly obtaining area aircraft proposed: influence box-corridor method, suitable generation studied by method. The article introduces simplifi...

An operating concept and a laboratory analysis methodology were developed and tested to examine how four-dimensional trajectory analysis methods could support higher levels of automation for separation assurance in the National Airspace System. Real-time simulations were conducted in which a human controller generated conflict resolution trajectories using an automated trial plan trajectory gen...

Maintaining safe separation between aircraft is a key determinant of the airspace capacity to handle air transportation. With the advent of satellite-based surveillance, aircraft equipped with the needed technologies are now capable of maintaining awareness of their location in the airspace and sharing it with their surrounding traffic. As a result, concepts and cockpit automation are emerging ...

Function Energy Equations Principles of absolute and relative locomotion Separation Generalized Function Weight, lift thrust and drag Maneuvering (kinematics, dynamics and performance) Obstruction Obstruction motion Physical Function Control surfaces, wings, engine, fuselage, ... Atmospheric condition Stationary objects (terrain, buildings, ...) Other traffic Physical Form Location and appearan...

In this paper we discuss the development and evaluation of our prototype technologies and procedures for far-term air traffic control operations with automation for separation assurance, weather avoidance and schedule conformance. Controller-in-the-loop simulations in the Airspace Operations Laboratory at the NASA Ames Research Center in 2010 have shown very promising results. We found the oper...

This paper analyzes loss of separation scenarios when an Unmanned Aircraft (UA) enters in conflict with a much faster airplane flying at the same altitude. Separation distances are analyzed in terms of minimum heading changes and reaction times. Results show that maneuvers need to be performed well in advance if the (low-speed) UA is the aircraft that changes its heading. In some cases the time...

This paper provides a method for generating a proof tree from an instance and a general logic program viz one which includes negative literals The method di ers from previous work in the eld in that negative literals are rst unfolded and then transformed using De Morgan s laws so that the tree explicitly includes negative rules The method is applied to a real world example a large executable sp...

Airport runways and taxiways have been identified as a key source of system-wide congestion and delay in the over-strained commercial air traffic system. To combat this growing problem, we present a novel approach for taxiway scheduling and traversal. Aircraft must traverse a taxiway, represented by a graph, from gates to their respective runways and arrive at their scheduled times while adheri...

Visual motion cues are used by tower controllers to support both visual and anticipated separation. Some of these cues are tabulated as part of the overall set of visual features used in towers to separate aircraft. An initial analyses of one motion cue, landing deceleration, is provided as a basis for evaluating how controllers detect and use it for spacing aircraft on or near the surface. Und...