TY  - JOUR
PY  - 1995//
TI  - External viewing of vehicle contents under various tinting and illumination conditions
JO  - Transportation research record
A1  - Proffitt, Dennis R.
A1  - Joseph, Jane E.
A1  - Bhalla, Mukul
A1  - Bertamini, Marco
A1  - Durgin, Frank H.
A1  - Lynn, Cheryl W.
A1  - Jernigan, Jack D.
SP  - 90
EP  - 96
VL  - 1485
IS  - 
N2  - The purpose of the study was to determine the degree to which motor vehicle window tint films impede a police officer's ability to see clearly into a stopped vehicle. Three hundred twenty subjects were asked to view the contents and occupants of one of four experimental cars. One car had no aftermarket tint film, and the other three had aftermarket tint films tinted to various degrees. Although similar experiments have been conducted, all of those experiments yielded equivocal results because of methodological flaws. The present experiment was an attempt to correct some of those problems and to simulate standard procedures used during traffic stops by the Virginia State Police. In general, the study found that the abilities of subjects to detect occupants and objects in vehicles were substantially diminished as the degree of window tinting increased. However, at night the detrimental effects were substantially reduced when headlights and a spotlight were shone on the vehicle, as would be the case in a traffic stop.    Record URL:   http://onlinepubs.trb.org/Onlinepubs/trr/1995/1485/1485-012.pdf<p /> <p>Language: en</p>
LA  - en
SN  - 0361-1981
UR  - http://dx.doi.org/
ID  - ref1
ER  -