Results from a Field Evaluation of Interval Management during an Optimized Profile Descent Arrival and Approach

Penhallegon, William J.; Bone, Randall S.; Stassen, Hans

doi:10.2514/6.2016-1612

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…These results indicate the ability of the maintain stage of these IM operations to precisely meet the ASG at the PTP. These results are consistent with a field evaluation conducted by UPS, MITRE, and the FAA in 2010 that found aircraft that followed the IM commanded speeds were able to obtain spacing accuracies within 8 seconds [17].…”

Section: A Spacing Accuracy Of Im Avionics Prototypesupporting

confidence: 87%

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Recommended changes to interval management to achieve operational implementation

Baxley

Swieringa

Roper

et al. 2017

2017 IEEE/AIAA 36th Digital Avionics Systems Conference (DASC)

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A 19-day flight test of an Interval Management (IM) avionics prototype was conducted in Washington State using three aircraft to precisely achieve and maintain a spacing interval behind the preceding aircraft. NASA contracted with Boeing, Honeywell, and United Airlines to build this prototype, and then worked closely with them, the FAA, and other industry partners to test this prototype in flight. Four different IM operation types were investigated during this test in the en route, arrival, and final approach phases of flight. Many of the IM operations met or exceeded the design goals established prior to the test. However, there were issues discovered throughout the flight test, including the rate and magnitude of IM commanded speed changes and the difference between expected and actual aircraft deceleration rates.

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Section: A Spacing Accuracy Of Im Avionics Prototypesupporting

confidence: 87%

“…A trajectory-based operation (TBO) speed control law and a state-based constant time delay (CTD) speed control law were implemented in the IM prototype [14][15][16][17]. The TBO speed control law is used for the achieve-stage of the Cross operation and the final approach spacing operation.…”

Section: F Im Speed Control Lawsmentioning

confidence: 99%

Recommended changes to interval management to achieve operational implementation

Baxley

Swieringa

Roper

et al. 2017

2017 IEEE/AIAA 36th Digital Avionics Systems Conference (DASC)

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“…They found that all of the aircraft who followed the IM speed commands were able to obtain spacing accuracies within 8 seconds. 30 The second metric comes directly from the FIM standards. Once the spacing error is captured or achieved, the operational goal is to remain within 10 seconds until the PTP.…”

Section: A Time-based Arrival Scenarios 1 Maintain Stage Performancementioning

confidence: 99%

Flight Test Evaluation of the ATD-1 Interval Management Application

Swieringa

Wilson

Baxley

et al. 2017

17th AIAA Aviation Technology, Integration, and Operations Conference

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Interval Management (IM) is a concept designed to be used by air traffic controllers and flight crews to more efficiently and precisely manage inter-aircraft spacing. Both government and industry have been working together to develop the IM concept and standards for both ground automation and supporting avionics. NASA contracted with Boeing, Honeywell, and United Airlines to build and flight test an avionics prototype based on NASA's spacing algorithm and conduct a flight test. The flight test investigated four different types of IM operations over the course of nineteen days, and included en route, arrival, and final approach phases of flight. This paper examines the spacing accuracy achieved during the flight test and the rate of speed commands provided to the flight crew. Many of the time-based IM operations met or exceeded the operational design goals set out in the standards for the maintain operations and a subset of the achieve operations. Those operations which did not meet the goals were due to issues that are identified and will be further analyzed.

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“…After equipment and operations were approved, UPS conducted the first flight in January of 2008 and continued flights during targets of opportunity until 2010. Two flight tests were conducted during this period with the final one in 2010 [24]. In this test, strings of aircraft started IM in Albuquerque Center (ZAB) en route airspace, performed IM during an OPD, and terminated around the Final Approach Fix at KSDF.…”

Section: Background and Historymentioning

confidence: 99%

Interval Management: Development and Implementation of an Airborne Spacing Concept

Barmore

Penhallegon

Weitz

et al. 2016

AIAA Guidance, Navigation, and Control Conference

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Interval Management is a suite of ADS-B-enabled applications that allows the air traffic controller to instruct a flight crew to achieve and maintain a desired spacing relative to another aircraft. The flight crew, assisted by automation, manages the speed of their aircraft to deliver more precise inter-aircraft spacing than is otherwise possible, which increases traffic throughput at the same or higher levels of safety. Interval Management has evolved from a long history of research and is now seen as a core NextGen capability. With avionics standards recently published, completion of an Investment Analysis Readiness Decision by the FAA, and multiple flight tests planned, Interval Management will soon be part of everyday use in the National Airspace System. Second generation, Advanced Interval Management capabilities are being planned to provide a wider range of operations and improved performance and benefits. This paper briefly reviews the evolution of Interval Management and describes current development and deployment plans. It also reviews concepts under development as the next generation of applications.

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Results from a Field Evaluation of Interval Management during an Optimized Profile Descent Arrival and Approach

Cited by 5 publications

References 4 publications

Recommended changes to interval management to achieve operational implementation

Recommended changes to interval management to achieve operational implementation

Flight Test Evaluation of the ATD-1 Interval Management Application

Interval Management: Development and Implementation of an Airborne Spacing Concept

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