NDLI: Flying schedule-matching descents to explore flight crews' perceptions of their load and task feasibility

Content Provider	IEEE Xplore Digital Library
Author	Martin, L. Sharma, S. Lozito, S. Kaneshige, J. Hayashi, M. Dulchinos, V.
Copyright Year	2012
Description	Author affiliation: San Jose State Univ. at NASA ARC, Mountain View, CA, USA (Martin, L.) \|\| Stinger-Ghaffarian Technol. at NASA ARC, Mountain View, CA, USA (Sharma, S.) \|\| NASA Ames Res. Center, Mountain View, CA, USA (Lozito, S.; Kaneshige, J.; Hayashi, M.)
Abstract	Recent studies at NASA Ames Research Center have investigated the development and use of ground-based (air traffic controller) tools to manage and schedule air traffic in future terminal airspace. No complementary studies have investigated the impacts that such tools (and concepts) could have on the flight-deck (although some independent studies have researched impacts of other ground tools). To begin to redress the balance within the project, an exploratory study investigated the procedures and actions of ten Boeing-747-400 crews as they flew eight continuous descent approaches in the Los Angeles terminal airspace, with the descents being controlled using speed alone. Although the study was exploratory in nature, four variables were manipulated: speed changes, route constraints, clearance phraseology, and winds. Despite flying the same scenarios with the same events and timing, there was at least a 50 second difference in the time it took crews to fly the approaches. This variation is the product of a number of factors but highlights potential difficulties for scheduling tools that would have to accommodate this amount of natural variation in descent times. The primary focus of this paper is the potential impact of ground scheduling tools on the flight crews' performance and procedures. Crews reported “moderate to low” workload, on average; however, short periods of intense and high workload were observed. The non-flying pilot often reported a higher level of workload than the flying-pilot, which may be due to their increased interaction with the Flight Management Computer, when using the aircraft automation to assist with managing the descent clearances. It is concluded that ground-side tools and automation may have a larger impact on the current-day flight-deck than was assumed and that studies investigating this impact should continue in parallel with controller support tool development.
Sponsorship	Aerosp. Electron. Syst. Soc.
File Size	630515
File Format	PDF
ISBN	9781467316996
ISSN	21557195
e-ISBN	9781467317009
DOI	10.1109/DASC.2012.6382286
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Aircraft Wind forecasting Automation NASA Schedules Air traffic control
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Aerospace Engineering

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