نتایج جستجو برای: traffic conflict

تعداد نتایج: 179737  

2010
Todd A. Lauderdale Confesor Santiago Carl Pankok

Most aircraft managed by air-traffic controllers in the National Airspace System are capable of flying parallel-offset routes. This paper presents the results of two related studies on the effects of increased use of offset routes as a conflict resolution maneuver. The first study analyzes offset routes in the context of all standard resolution types which air-traffic controllers currently use....

1996
George J. Pappas Claire Tomlin Shankar Sastry

A conflict resolution architecture for multi-agent hybrid systems with emphasis on Air Traffic Management Systems (ATMS) is presented. In such systems, conflicts arise in the form of potential collisions which are resolved locally by inter-agent coordination. This results in a decentralized architecture in which safety issues are resolved locally and central agencies, such as Air Traffic Contro...

2011
Anthony J. Narkawicz César A. Muñoz Natalia Alexandrov Jeffrey Maddalon

In air traffic management, pairwise coordination is the ability to achieve separation requirements when conflicting aircraft simultaneously maneuver to solve a conflict. Resolution algorithms are implicitly coordinated if they provide coordinated resolution maneuvers to conflicting aircraft when only surveillance data, e.g., position and velocity vectors, is periodically broadcast by the aircra...

2003
Steven M. Green Robert A. Vivona

The En-route Descent Advisor (EDA) is a set of decision support tool (DST) capabilities for managing complex en route traffic subject to metering restrictions. The goal is to enable controller procedures to evolve from today’s emphasis on sector management towards procedures more oriented towards trajectory management. EDA will help controllers transition traffic from a “Free Flight” (minimally...

2011
Jerome Le Ny George J. Pappas

This paper describes a novel optimization-based approach to conflict resolution in air traffic control, based on geometric programming. The main advantage of the approach is that Geometric Programs (GPs) can also capture various metering directives issued by the traffic flow management level, in contrast to most recent methods focusing purely on aircraft separation issues. GPs can also account ...

2006

—We present Descartes BGP (D-BGP), a fault detection and response framework that enhances the robustness, security, and manageability of inter-domain routing. D-BGP associates a state of " agreement, " " conflict, " or " persistent conflict " with each announced address prefix. When a D-BGP router receives a routing update in which a new AS claims to be an origin of a prefix, it alerts other D-...

2012
Krithika Mohan Michael A. Patterson Anil V. Rao

Due to the large increase in the density of aircraft arrivals at airports in recent years, it has become important to optimize the scheduling of aircraft landings in order to reduce wait time, improve airport efficiency, and minimize fuel consumption while maintaining safety. As the density of aircraft arrivals increases, however, so too does the complexity of trajectory planning and generation...

2001
Lee C. Yang James K. Kuchar

This paper discusses the development of a prototype alerting system for a conceptual Free Flight environment. The concept assumes that datalink between aircraft is available and that conflicts are primarily resolved on the flight deck. Four alert stages are generated depending on the likelihood of a conflict. If the conflict is not resolved by the flight crews, Air Traffic Control is notified t...

2015
Anthony Narkawicz César Muñoz

In air traffic management, conflict detection algorithms are used to determine whether or not aircraft are predicted to lose horizontal and vertical separation minima within a time interval assuming a trajectory model. In the case of linear trajectories, conflict detection algorithms have been proposed that are both complete, i.e., they detect all conflicts, and sound, i.e., they do not present...

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