Initial Life-Cycle Cost/Benefit Assessments of Distributed Air/Ground Traffic Management Concept Elements

Stouffer, Virginia L.; Hasan, Shahab; Kozarsky, Daniel

doi:10.2514/6.2004-6452

Cited by 3 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…17). Furthermore, these benefits would be immediately available even to the first operator to use AFR, as a result of AFR being a per-aircraft application.…”

Section: Lower Costsmentioning

confidence: 99%

For Spacious Skies: Self-Separation with "Autonomous Flight Rules" in US Domestic Airspace

Wing

Cotton

2011

11th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference

View full text Add to dashboard Cite

Autonomous Flight Rules (AFR) are proposed as a new set of operating regulations in which aircraft navigate on tracks of their choice while self-separating from traffic and weather. AFR would exist alongside Instrument and Visual Flight Rules (IFR and VFR) as one of three available flight options for any appropriately trained and qualified operator with the necessary certified equipment. Historically, ground-based separation services evolved by necessity as aircraft began operating in the clouds and were unable to see each other. Today, technologies for global precision navigation, emerging airborne surveillance, and onboard computing enable traffic conflict management to be fully integrated with navigation procedures onboard the aircraft. By self-separating, aircraft can operate with more flexibility and fewer flight restrictions than are required when using ground-based separation. The AFR concept proposes a practical means in which self-separating aircraft could share the same airspace as IFR and VFR aircraft without disrupting the ongoing processes of Air Traffic Control. The paper discusses the context and motivation for implementing self-separation in US domestic airspace. It presents a historical perspective on separation, the proposed way forward in AFR, the rationale behind mixed operations, and the expected benefits of AFR for the airspace user community.

show abstract

“…17). Furthermore, these benefits would be immediately available even to the first operator to use AFR, as a result of AFR being a per-aircraft application.…”

Section: Lower Costsmentioning

confidence: 99%

For Spacious Skies: Self-Separation with "Autonomous Flight Rules" in US Domestic Airspace

Wing

Cotton

2011

11th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference

View full text Add to dashboard Cite

show abstract

“…AFR aircraft can fly at economical altitudes and speeds along optimal routes, bypass miles-in-trail restrictions and many ground delay programs, find better routes through weather, and fly with a freedom similar to VFR operations, but in instrument meteorological conditions. The benefits from reduced restrictions and increased operational flexibility are expected to significantly exceed the cost of equipage and the burden of taking on separation responsibility to fly AFR [4]. AFR as developed thus far is primarily an enroute concept of operations.…”

Section: Autonomous Flight Rulesmentioning

confidence: 99%

The effects of limited intent information availability on self-separation in mixed operations

Lewis

Phojanamongkolkij

Wing

2012

2012 Integrated Communications, Navigation and Surveillance Conference

View full text Add to dashboard Cite

This paper presents the results of a computer simulation of the NASA Autonomous Flight Rules (AFR) concept for airborne self-separation in airspace shared with conventional Instrument Flight Rules (IFR) traffic. This study was designed to determine the impact of varying levels of intent information from IFR aircraft on the performance of AFR conflict detection and resolution. The study used Automatic Dependent Surveillance-Broadcast (ADS-B) to supply IFR intent, but other methods such as an uplink from a ground-based System Wide Information Management (SWIM) network could alternatively supply this information. The independent variables of the study consist of the number of ADS-B trajectory change reports broadcast by IFR aircraft and the time interval between those reports. The conflict detection and resolution metrics include: the number of conflicts and losses of separation, the average conflict warning time, and the amount of time spent in strategic vs. tactical flight modes (i.e., whether the autoflight system was decoupled from the planned route in the Flight Management System in order to respond to a short-notice traffic conflict). The results show a measurable benefit of broadcasting IFR intent vs. relying on state-only broadcasts. The results of this study will inform ongoing separation assurance research and FAA NextGen design decisions for the sharing of trajectory intent information in the National Airspace System.

show abstract

Benefit Mechanisms of Enhanced Collaboration in Tactical Traffic Flow Management

Idris

Evans

Krozel

et al. 2006

6th AIAA Aviation Technology, Integration and Operations Conference (ATIO)

View full text Add to dashboard Cite

Initial Life-Cycle Cost/Benefit Assessments of Distributed Air/Ground Traffic Management Concept Elements

Cited by 3 publications

References 2 publications

For Spacious Skies: Self-Separation with "Autonomous Flight Rules" in US Domestic Airspace

For Spacious Skies: Self-Separation with "Autonomous Flight Rules" in US Domestic Airspace

The effects of limited intent information availability on self-separation in mixed operations

Benefit Mechanisms of Enhanced Collaboration in Tactical Traffic Flow Management

Contact Info

Product

Resources

About