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Estimation of Automobile Speed under Day and Night Conditions

1982; SAGE Publishing; Volume: 24; Issue: 1 Linguagem: Inglês

10.1177/001872088202400111

1547-8181

Thomas J Triggs, John S. Berenyi,

Traffic and Road Safety

Passenger subjects estimated automobile speed while traveling along an unlit freeway under day and night conditions. A visual occluding device allowed a 1-s glimpse of the road ahead when a judgment was required. Although subjects underestimated speeds, their judgments were more accurate at night than during the day.