Samenvatting
The objective of this research was to provide reliable data, under laboratory conditions, on the impairing effects on driving of cannabis alone, and also in combination with alcohol. It was concluded that driving under the influence of cannabis adversely affects driver performance. The consumption of alcohol, at the relatively low doses used in this study, added to this adverse effect, but not to a degree that is statistically significant. (Author/publisher) For the covering abstract of the conference see ITRD Abstract No. E201067.