The past two decades have shown a 35 percent increase in bus ridership nationwide. The reasons for the increase include the improvements made to bus and other transit systems, especially in metropolitan areas; the affordability and ease compared to driving; and the increase in environmental awareness by reducing carbon emissions. With the increase in people riding buses, on California roads and highways, as well as students riding on school buses, the number of bus accidents and injuries has increased proportionately. In California, commercial bus companies are considered common carriers, or buses carrying for “reward” and can be divided into three categories-commuter buses, long distance transportation buses [...]