Traffic fatalities in the United States have been plummeting for years, a major victory for regulation (strict drunken driving laws have helped) and auto innovation (we have safer cars). But that progress obscures a surprising type of inequality: The most disadvantaged are more likely — and have grown even more likely over time — to die in car crashes than people who are well-off.
New research by Sam Harper, Thomas J. Charters and Erin C. Strumpf, published in the American Journal of Epidemiology, finds that improvements in road safety since the 1990s haven't been evenly shared. The biggest declines in fatalities have occurred among the most educated.