A driver suffering from fatigue can be just as dangerous as a drunk driver.
Driver fatigue contributes to a significant proportion of road deaths each year.
A recent study by the Centre for Sleep Research in South Australia revealed that if you drive after being awake for 17 hours, the risk of crashing is as great as being at the 0.05 legal drinking limit. Driving after 24 hours without sleep gives you the same risk as someone with a blood alcohol level of 0.1.
When we are deprived of sleep our bodies build up a sleep debt that can only be reduced by getting adequate sleep. Driving while sleep-deprived, especially late at night, at dawn and in the late afternoon, can be deadly.