TY  - JOUR
PY  - 2009//
TI  - Quantifying the subjective brightness of retroreflective material using magnitude estimations
JO  - Proceedings of the ... international driving symposium on human factors in driver assessment, training and vehicle design
A1  - Graving, Justin S.
A1  - Tyrrell, Richard A.
A1  - Balk, Stacy A.
SP  - 377
EP  - 383
VL  - 5
IS  - 
N2  - Ten small patches of retroreflective material were evaluated using a method of magnitude estimation to quantify the effect of changing the coefficient of retroreflection (RA) on brightness perception. Seventeen undergraduates participated. The results show that brightness is tightly linked with RA. Brightness was influenced more by changes in lower RA than changes in higher RA and follows Steven’s power law for brightness. Practical and theoretical implications are discussed.<p />
LA  - 
SN  - 
UR  - http://dx.doi.org/
ID  - ref1
ER  -