Safety Risk Simulation of an Airborne Self Separation Concept of Operation

Blom, H.A.P.; Obbink, B. Klein; Bakker, Bert

doi:10.2514/6.2007-7729

Cited by 14 publications

(15 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5,6,7,8,9 One concern in distributed operations is the adverse impact of uncoordinated actions by individual aircraft on the stability of separation assurance. For example, individual aircraft performing selfseparation may resolve predicted losses of separation or conflicts with some traffic, only to result in secondary conflicts with other traffic or with the same traffic later in time.…”

Section: Introductionmentioning

confidence: 99%

Improving Separation Assurance Stability Through Trajectory Flexibility Preservation

Idris

Shen

Wing

2010

10th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference

View full text Add to dashboard Cite

New information and automation technologies are enabling the distribution of tasks and decisions from the service providers to the users of the air traffic system, with potential capacity and cost benefits. This distribution of tasks and decisions raises the concern that independent user actions will decrease the predictability and increase the complexity of the traffic system, hence inhibiting and possibly reversing any potential benefits. One such concern is the adverse impact of uncoordinated actions by individual aircraft on the stability of separation assurance. For example, individual aircraft performing self-separation may resolve predicted losses of separation or conflicts with some traffic, only to result in secondary conflicts with other traffic or with the same traffic later in time. In answer to this concern, this paper proposes metrics for preserving user trajectory flexibility to be used in self-separation along with other objectives. The hypothesis is that preserving trajectory flexibility will naturally reduce the creation of secondary conflicts by bringing about implicit coordination between aircraft. The impact of using these metrics on improving selfseparation stability is investigated by measuring the impact on secondary conflicts. The scenarios analyzed include aircraft in en route airspace with each aircraft meeting a required time of arrival in a twenty minute time horizon while maintaining separation from the surrounding traffic and using trajectory flexibility metrics to mitigate the risk of secondary conflicts. Preliminary experiments showed promising results in that the trajectory flexibility preservation reduced the potential for secondary conflicts.

show abstract

Section: Introductionmentioning

confidence: 99%

Improving Separation Assurance Stability Through Trajectory Flexibility Preservation

Idris

Shen

Wing

2010

10th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference

View full text Add to dashboard Cite

show abstract

“…In addition, NextGen is currently investigating more delegation of traffic separation responsibility to the pilot [12,13]. In the system, pilots are assisted in predicting and resolving loss of separation by cockpit automation, known generally as Airborne Separation Assistance Systems (ASAS) [14,15]. Early ASAS experiments showed promising results of assisted separation operations [16,17].…”

Section: Airborne Conflict Resolution Support In Current Technologiesmentioning

confidence: 99%

Design of a pilot-centered visual decision-support system for airborne collision avoidance

Koyuncu

Ozdemir

Tokadli

et al. 2012

2012 IEEE/AIAA 31st Digital Avionics Systems Conference (DASC)

View full text Add to dashboard Cite

In this work we present a pilot-centered visual decision support system for flight critical collision avoidance using "dynamic 4D trajectory management". The system utilizes an underlying automation support system, which is connected to the onboard avionics, and the NextGen/SESAR enhanced flight deck technologies enabling new Communication, Navigation and Surveillance (CNS) and System Wide Information Management (SWIM) services. The overall automation support system which embeds "dynamic 4D trajectory management" is envisioned to a) provide the pilots with alternative trajectories as tunnels-in-the-sky through avionics displays on the console and head-up/augmented reality displays in real-time, b) provide the flight crew with quantified and visual understanding of collision risks in terms of time, directions, and countermeasures, and c) provide autonomous conflict resolution as an autopilot mode. Thus, ensuring highly responsive and adaptive airborne collision avoidance in face of ever challenging scenarios that involve blunders, weather/ terrain/ obstacle/ new conflict hazards. The designed visual decision support system does not increase workload of the pilot and dilutes "tunneling effect" in interaction while increasing situational awareness. These algorithms and tools developed are currently being integrated on an Automation Support System for implementation on a Boeing 737-NG FNPT II Flight Simulator with synthetic vision and augmented reality.

show abstract

“…In addition, NextGen is currently investigating more delegation of traffic separation responsibility to the pilot [9,10]. In the system, pilots are assisted in predicting and resolving loss of separation by cockpit automation, known generally as Airborne Separation Assistance Systems (ASAS) [11,12]. Early ASAS experiments showed promising results of assisted separation operations [13,14].…”

Section: Introductionmentioning

confidence: 99%

Flight deck automation support with dynamic 4D trajectory management for ACAS: AUTOFLY-Aid

Koyuncu

García

Tsourdos

2012

2012 Integrated Communications, Navigation and Surveillance Conference

View full text Add to dashboard Cite

AUTOFLY-Aid Project aims to develop and demonstrate novel automation support algorithms and tools to the flight crew for flight critical collision avoidance using "dynamic 4D trajectory management". The automation support system is envisioned to improve the primary shortcomings of TCAS, and to aid the pilot through add-on avionics/head-up displays and reality augmentation devices in dynamically evolving collision avoidance scenarios. The main theoretical innovative and novel concepts to be developed by AUTOFLY-Aid project are a) design and development of the mathematical models of the full composite airspace picture from the flight deck's perspective, as seen/measured/informed by the aircraft flying in SESAR 2020, b) design and development of a dynamic trajectory planning algorithm that can generate at real-time (on the order of seconds) flyable (i.e. dynamically and performance-wise feasible) alternative trajectories across the evolving stochastic composite airspace picture (which includes new conflicts, blunder risks, terrain and weather limitations) and c) development and testing of the Collision Avoidance Automation Support System on a Boeing 737 NG FNPT II Flight Simulator with synthetic vision and reality augmentation while providing the flight crew with quantified and visual understanding of collision risks in terms of time and directions and countermeasures.

show abstract

Safety Risk Simulation of an Airborne Self Separation Concept of Operation

Cited by 14 publications

References 8 publications

Improving Separation Assurance Stability Through Trajectory Flexibility Preservation

Improving Separation Assurance Stability Through Trajectory Flexibility Preservation

Design of a pilot-centered visual decision-support system for airborne collision avoidance

Flight deck automation support with dynamic 4D trajectory management for ACAS: AUTOFLY-Aid

Contact Info

Product

Resources

About