The AAA Foundation for Traffic Safety conducts research with a focus toward creating a social climate where traffic safety is highly valued and rigorously pursed. The 2012 Traffic Safety Culture Index found that finds that 96% of drivers consider it to be unacceptable for someone to drive when they are so sleepy that they have a hard time keeping their eyes open.
This study addresses two key questions regarding the causes of sleep-related accidents: 1) Can drivers anticipate sleep onset well enough to avoid sleep-related accidents? 2) How do drivers use physiological cues of sleepiness in making judgments regarding the riskiness of continued driving?
Excessive sleepiness may result in an increased risk of a motor vehicle crash either
because the motorist falls asleep while driving or because he experiences reduced attention to road events and driving tasks due to fatigue/sleepiness.
According to the National Highway Traffic Safety Administration (NHTSA), each year up to 100,000 police-reported crashes (about 1.5% of all crashes) involve drowsiness or fatigue as a principal cause, injuring at least 71,000 people, and killing at least 1,500.