These data measure Arizona injuries and deaths per 100 million vehicle miles traveled as reported by the Arizona Department of Transportation (ADOT) and Insurance Institute for Highway Safety.
What Causes Roadway Fatalities or Injuries?
Roadway deaths and serious injuries can be caused by numerous factors, including the speed of traffic, interactions between diverse types of transportation (e.g., bicycles and motor vehicles), the design of the roadway, and vehicle safety equipment. Roadways nationwide are the third leading cause of preventable death in the United States, behind intentional self-harm and non-transportation-related accidental injuries.
Why Would Improving Roadway Safety Matter?
Roadway injuries and fatalities are entirely preventable, yet Arizona has continued to be above the national trend for deaths. While driver error contributes to accidents, proactive, preventative measures are available, so mistakes don’t become fatal. Roadway design, speed limits, and accountability are all factors impacting roadway safety.
Roadway safety data are updated annually and are available for the nation, states, and many cities in Arizona.