The present study investigated the effects of discomfort glare on driving behavior. Participants(old and young; U.S. and Europeans)were exposed to a simulated Low-beam light source mounted on the hood of an instrumented vehicle. Participants drove at night in actual traffic along a track consisting on urban, Rural, and highway stretches. The results show that relatively low glare source Caused a significant drop in detecting simulated pedestrians along the roadside And made participants drive significantly slower on dark and winding roads.
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