America's roads, after years of steady declines in vehicle accident deaths, are seeing a significant rise in deadly accidents in the last six years. But accidents can be especially lethal if a large truck or bus is involved. In 2017, there were 37,133 fatal automobile crashes on the nation's roads, according to the National Highway Traffic Administration. About 12.5% of them (4,657) involved at least one large truck or bus. In addition, there were 6,419,000 non-fatal crashes, of which 7% involved a large truck or bus, This means that accidents involving a large truck or bus are almost twice as…