The chief cause of highway accidents is frontal collisions. Platooning is the act of automating the speed of a number of trucks in a chain, using radar and V2V communications. Platooning may prevent truck (and other crashes), resulting in lower crash rates and less travel delay. There is a financial aspect to safety. Trucks and other vehicles get damaged in crashes, and insurance companies have to pay crash costs. Also, there are costs from workers to crashes and injuries. Further research is needed to
benchmark current practices and identify innovative research and testing underway.