In a study of global commercial truck drivers, nearly half of drivers tested postive to using alcohol when driving, and 30 percent used amphetamines to stay awake during long trips.
The study conducted by the Universidada Estadual de Londrina in Brazil found that the number of users varied widely by country. In Brazil, 91 percent of truck drivers stated that they drank alcohol while working, compared to 9 percent in Pakistan.
In the United States, 12.5 percent of commercial drivers tested positive for alcohol.
The Federal Highway Police in Brazil stated that marijuana, cocaine, heroin, amphetamines and LSD were all easily found at gas stations and rest stop locations. Brazil has the most traffic accidents in the world.
Source: Kathyrn Doyle, “Drug use high among commercial truck drivers: study,” Reuters, October 25, 2013.