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Dynamic Tunnel Usability Study: Format Recommendations for Synthetic Vision System Primary Flight DisplaysA usability study evaluating dynamic tunnel concepts has been completed under the Aviation Safety and Security Program, Synthetic Vision Systems Project. The usability study was conducted in the Visual Imaging Simulator for Transport Aircraft Systems (VISTAS) III simulator in the form of questionnaires and pilot-in-the-loop simulation sessions. Twelve commercial pilots participated in the study to determine their preferences via paired comparisons and subjective rankings regarding the color, line thickness and sensitivity of the dynamic tunnel. The results of the study showed that color was not significant in pilot preference paired comparisons or in pilot rankings. Line thickness was significant for both pilot preference paired comparisons and in pilot rankings. The preferred line/halo thickness combination was a line width of 3 pixels and a halo of 4 pixels. Finally, pilots were asked their preference for the current dynamic tunnel compared to a less sensitive dynamic tunnel. The current dynamic tunnel constantly gives feedback to the pilot with regard to path error while the less sensitive tunnel only changes as the path error approaches the edges of the tunnel. The tunnel sensitivity comparison results were not statistically significant.
Document ID
20060008164
Acquisition Source
Langley Research Center
Document Type
Technical Memorandum (TM)
Authors
Arthur, Jarvis J., III (NASA Langley Research Center Hampton, VA, United States)
Prinzel, Lawrence J., III (NASA Langley Research Center Hampton, VA, United States)
Kramer, Lynda J. (NASA Langley Research Center Hampton, VA, United States)
Bailey, Randall E. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 7, 2013
Publication Date
February 1, 2006
Subject Category
Air Transportation And Safety
Report/Patent Number
L-19218
NASA/TM-2006-214272
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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