“Data from the US National Highway Traffic Safety Administration shows that deaths from drunk driving dropped by half since the early 1980s. One big factor: in the '80s, many states raised the legal drinking age from 18 to 21.”
"As of 2012, US seat belt use averages 86 percent."
"Although the general trend since 1971 has been more and more miles on the road, we've been traveling about 7 percent fewer miles per person since 2005."
Locke concludes by suggesting three improvements that could continue to decrease the number of people who die while driving.