Identification and Comprehension of Symbolic Exit Signs for Small Transport-Category Airplanes
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2014-02-01
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Abstract:Global growth in travel has resulted in the need to standardize safety information and guidance systems
for communication of significant information to the widest audience possible. Through uniform design and
common visual components, persons in all countries can betterrecognize and follow directional information
for safe passage, particularly in emergency situations.
In order to communicate guidance information efficiently across language barriers, graphical signs and
symbolic markings have come to incorporate a range of fairly standard visual components, such as exit signs
that include arrows and the international running man symbol. A symbolic emergency exit sign has been
approved for placement on a single, large transport-category airplane type in place of the signs currently
required by 14 CFR 25.811 and 25.812. Use of a similar symbolic exit sign has been proposed for
deployment on a small transport airplane. This sign would be smaller and use variations of the approved
symbols.
This study evaluated the smaller symbolic exit sign, comparing it with the approved sign in combination
with variations of individual sign elements. Overall, there was little difference in the identification of either
the approved or proposed running man element, although participants were better able to identify the type of
arrow element currently approved for the larger transport airplanes.
The main recommendations from this study are that future symbolic exit signs on transport-category
airplanes be standardized and spaced within the cabin to provide the visual size needed for proper
identification and comprehension.
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