New ways to detect when drives are about to nod off while driving has now been developed by researchers.
Their recently patented technology is based on steering wheel movements - which are more variable in drowsy drivers - and offers an affordable and more reliable alternative to currently available video-based driver drowsiness detection systems.
"Video-based systems that use cameras to detect when a car is drifting out of its lane are cumbersome and expensive," said Hans Van Dongen, research professor at the WSU Sleep and Performance Research Center. "They don't work well on snow-covered or curvy roads, in darkness or when lane markers are faded or missing.
The science behind the invention was published in the journal Accident Analysis and Prevention.