Ongevallen/100.000 mijl naar leeftijd, geslacht en rijervaring. Onderzoek m.b.v. een toestel dat de proefpersoon een dreigende konfliktsituatie toont bij een dreigende verkeerssituatie die de proefpersoon moet opmerken en verwerken onder druk van een bepaalde tijdslimiet en afleidend motorgeronk. Onderzoek vond plaats bij verschillende leeftijden, geslacht en rijervaring. De aanbiedingstijd van de bepaalde situatie was variabel. English abstract: At the moment when a potential hazard is perceptible, the driver's perception and judgment is critical. To simulate this moment a test device with photographs of traffic hazard situations is used. Each hazard photograph is covered over with blocks. By removing the blocks a subject uncovers the hazard picture and accretes a stimulus picture, hence the name stimulus accretion impending hazard (saih) device. Principal scores derived are size of stimulus accreted, number of major hazard cues described, and consistency of response style. The measure which correlated highest and most consistently with accident experience was the size of stimulus accreted. Smaller stimulus size scores were associated with higher accident indexes. There appear to be several dimensions of driver response which influence capacity for accident avoidance. The stimulus accretion technique measures aspects of perception and judgment. With driver-subjects categorized on stimulus size, hazards perceived and consistency measures, the sub-group with the highest criterion score had a mean accident index five times as great as the lowest sub-group. Implications of these findings for accident propensity are discussed.
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