Question: what is involved in 1/3 of fatal crashes?
Answer: More people (503,000) were injured in rear-end crashes than any other type of crash. In 2013, speeding was a contributing factor in 29 percent of all fatal crashes, and 9,613 lives were lost. Speeding-related fatalities decreased by 2 percent from 2012. They have been about one-third of all fatal crashes since 2002.