Studies show that more than 90% of motor vehicle crashes are caused, at least in part, by human error.
There is a large body of evidence showing that simple changes in roadway design and safety features can have profound effects on rates of crashes, injuries, and deaths.
Recent research from the AAA Foundation for Traffic Safety identified several roadway improvements that have the potential to help save 63,700 lives and prevent 415,000 serious injuries over a 20-year period with an investment of $146 billion.