The Visibility of Symbolic Highway Signs Can Be Increased among Drivers of All Ages

Visibility and comprehension of standard text, standard symbolic, and improved symbolic highway signs were compared among young, middle-aged, and elderly observers. The average distance at which standard symbolic signs could be identified was about two times that of text signs for all three age grou...

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Veröffentlicht in:Human factors 1993-03, Vol.35 (1), p.25-34
Hauptverfasser: Kline, Donald W., Fuchs, Perry
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description Visibility and comprehension of standard text, standard symbolic, and improved symbolic highway signs were compared among young, middle-aged, and elderly observers. The average distance at which standard symbolic signs could be identified was about two times that of text signs for all three age groups. The visibility distances of the improved symbolic signs, which were designed using an optical blur (i.e., low-pass) approach in order to avoid higher spatial frequencies, exceeded those of both text and standard symbolic signs. Visibility distance was decreased significantly among older drivers on some signs but not others. There were no significant age differences in the comprehension of symbolic signs. Acuity, a good predictor of visibility distance of both text and standard symbolic signs, was only weakly related to the visibility distance of the improved symbolic signs. These findings demonstrate that low-pass symbolic signs have significant advantages in visibility over their text counterparts for all drivers.
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The average distance at which standard symbolic signs could be identified was about two times that of text signs for all three age groups. The visibility distances of the improved symbolic signs, which were designed using an optical blur (i.e., low-pass) approach in order to avoid higher spatial frequencies, exceeded those of both text and standard symbolic signs. Visibility distance was decreased significantly among older drivers on some signs but not others. There were no significant age differences in the comprehension of symbolic signs. Acuity, a good predictor of visibility distance of both text and standard symbolic signs, was only weakly related to the visibility distance of the improved symbolic signs. 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subjects Acuity
Adult
Age differences
Aged
Aging - psychology
Applied psychology
Attention
Automobile Driving - psychology
Biological and medical sciences
Discrimination Learning
Distance Perception
Drivers
Female
Fundamental and applied biological sciences. Psychology
Geriatrics
Humans
Male
Middle Aged
Older people
Pattern Recognition, Visual
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Size Perception
Space life sciences
Traffic signs
Transportation. City planning
Visibility
Visual Acuity
title The Visibility of Symbolic Highway Signs Can Be Increased among Drivers of All Ages
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