SWOV Catalogus


The influence of cannabis and alcohol on driving.
C 24384 (In: C 24380 [electronic version only]) /83 / ITRD E116029
Tunbridge, R.
In: Behavioural research in road safety XI : proceedings of the 11th seminar on behavioural research in road safety, 2002, p. 29-42, 8 ref. / pdf-version: p. 42-59

Samenvatting This paper reports the second phase of a research project to determine the influence of a combination of cannabis and alcohol on driving behaviour. The study was designed for a crossover design analysis of variance with planned comparisons. Participants were given two different cannabis doses, each one used twice, with drinks that did or did not contain alcohol. They drove in a real-car simulator on motorway sections, pulling-out events, braking events, a figure-of-eight loop and a traffic light-controlled junction. An adaptive eye/hand tracking test and mood questionnaire were administered and subjects were tested for alcohol and drug use before and after the test. Statistical analysis was employed. The trial was compared to the earlier study on cannabis use alone. Results bring the conclusion that cannabis has a measurable effect on psychomotor performance. For the covering abstract see ITRD E116025.
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