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Proceedings Paper

Optimizing height presentation for aircraft cockpit displays
Author(s): Chris S. Jordan; D. Croft; Stephen J. Selcon; H. Markin; M. Jackson
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Paper Abstract

This paper describes an experiment conducted to investigate the type of display symbology that most effectively conveys height information to users of head-down plan-view radar displays. The experiment also investigated the use of multiple information sources (redundancy) in the design of such displays. Subjects were presented with eight different height display formats. These formats were constructed from a control, and/or one, two, or three sources of redundant information. The three formats were letter coding, analogue scaling, and toggling (spatially switching the position of the height information from above to below the aircraft symbol). Subjects were required to indicate altitude awareness via a four-key, forced-choice keyboard response. Error scores and response times were taken as performance measures. There were three main findings. First, there was a significant performance advantage when the altitude information was presented above and below the symbol to aid the representation of height information. Second, the analogue scale, a line whose length indicated altitude, proved significantly detrimental to performance. Finally, no relationship was found between the number of redundant information sources employed and performance. The implications for future aircraft and displays are discussed in relation to current aircraft tactical displays and in the context of perceptual psychological theory.

Paper Details

Date Published: 7 February 1997
PDF: 8 pages
Proc. SPIE 2949, Imaging Sciences and Display Technologies, (7 February 1997); doi: 10.1117/12.266344
Show Author Affiliations
Chris S. Jordan, DERA Farnborough (United Kingdom)
D. Croft, DERA Farnborough (United Kingdom)
Stephen J. Selcon, DERA Farnborough (United Kingdom)
H. Markin, DERA Farnborough (United Kingdom)
M. Jackson, DERA Farnborough (United Kingdom)


Published in SPIE Proceedings Vol. 2949:
Imaging Sciences and Display Technologies
Jan Bares; Christopher T. Bartlett; Paul A. Delabastita; Jose Luis Encarnacao; Nelson V. Tabiryan; Panos E. Trahanias; Arthur Robert Weeks, Editor(s)

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