Motor vehicle fatalities on urban arterials have increased dramatically over the last decade. Urban interstates and urban collectors have also seen increases. Rural roads and local urban roads have seen decreases over time.
Functional classification data labeling changed from original so that urban and rural roadways could be displayed on the same chart. Rate of traffic deaths per vehicle miles traveled (VMT) omitted, but it suggests that urban arterials are about 50% safer today per VMT than in 1980 despite over 1,000 additional deaths.