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Pilot stereotypes for navigation symbols on electronic displays
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2006-09-20
[PDF-584.78 KB]
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Abstract:There is currently no common symbology standard for the
electronic display of navigation information. The wide
range of display technologies and the different functions
these displays support make it difficult to design symbols
that are easily recognized across platforms. This paper
presents the findings of an experiment that addressed the
issue of symbol stereotypes, i.e., whether symbols have key
features that are necessary for recognition. Pilots were
shown symbols for navigation aids collected from five
aviation display manufacturers and published documents.
They were asked to indicate whether they considered the
symbol shapes to be representative of a specific symbol
type. The results showed that pilots do have stereotypes
regarding what symbol shapes are representative of a
symbol type. Stereotypical shapes for navigation symbols
were identified despite variations in the size, color, and fill
with which the test symbol shapes were presented. The
results suggest that symbol stereotypes exist and should be
considered in the design of electronic symbols to maintain
safety. While the scope of this work addresses electronic
navigation symbology, the techniques used here are
applicable to addressing other types of symbology.
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