Commercial trucking serves as a barometer for the economy. It represented nearly 71% of the tonnage carried by all modes of domestic freight transportation in 2017, including manufactured and retail goods. With more trucks on the road, there were also more accidents, including a rise in fatalities. Trucks were involved in 59% more accidents per mile than in 2010, despite the new technologies and the best efforts of regulators, according to the American Trucking Association (ATA). Further, the number of people who died in large truck crashes was also 30% higher than in 2009, when it was the lowest it has been since the collection of fatal crash data began in 1975.