Motor vehicle crashes involving flatbed, semi-trucks or tractor trailers can lead to serious injury or death. According to statistics compiled by the Federal Motor Carrier Safety Administration, in 2015 4,311 large trucks and buses were involved in fatal crashes, an eight percent increase from 2014.
The Federal Highway Administration reports that there were more than 260 million registered vehicles in the United States in 2014. More than eight million of these vehicles were single-unit or straight trucks, 2.5 million were tractor-trailers or semi-trucks and there were 800,000 buses on the road. That year registered vehicles traveled more than three trillion miles. Trucks were responsible for 279 billion of those miles or 9.2 percent of the total, and buses traveled 16 billion miles accounting for 0.5 percent of the total.