TY  - JOUR
PY  - 1994//
TI  - Age differences in the legibility of symbol highway signs as a function of luminance and glare level: a preliminary report
JO  - Proceedings of the Human Factors and Ergonomic Society annual meeting
A1  - Schieber, Frank
A1  - Kline, Donald W.
SP  - 133
EP  - 136
VL  - 38
IS  - 2
N2  - 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> 
LA  - en
SN  - 2169-5067
UR  - http://dx.doi.org/10.1177/154193129403800201
ID  - ref1
ER  -