A new study from the Insurance Institute for Highway Safety (IIHS) reports that driver assistance technologies, such as automatic emergency braking and forward collision warning systems, have been shown to reduce accident rates among large trucks. Increased use of these systems in these vehicles should prevent countless deaths and injuries and save millions of dollars. The U.S. relies on large trucks for shipping goods, but they have always presented a serious threat to other vehicles. Often, the consequences have been fatal for drivers of passenger vehicles and costly for the trucks' owners. For example, the singer Harry Chapin died in…