@article{ref1,
title="Age differences in the legibility of symbol highway signs as a function of luminance and glare level: a preliminary report",
journal="Proceedings of the Human Factors and Ergonomic Society annual meeting",
year="1994",
author="Schieber, Frank and Kline, Donald W.",
volume="38",
number="2",
pages="133-136",
abstract="Three experiments were conducted to investigate the effects of adult aging upon the legibility of simulated symbol highway signs. Each experiment employed a different set of lighting conditions: (1) daytime luminance, (2) nighttime luminance, and (3) nighttime luminance with glare. Young (ages 18-25) and middle-aged (ages 40-55) observers demonstrated small reductions in legibility when luminance was reduced from daytime to nighttime levels. However, older (ages 65-79) observers demonstrated marked losses in legibility distance with reductions in sign luminance. The introduction of a glare source (equivalent to approaching automobile headlights at 30 m) reduced sign legibility distance for the older observers but had no deleterious effects upon their young and middle-aged counterparts. The relative magnitude of the observed age, luminance and glare effects appeared to be equivalent across all signs examined.<p /><p>Language: en</p>",
language="en",
issn="2169-5067",
doi="10.1177/154193129403800201",
url="http://dx.doi.org/10.1177/154193129403800201"
}