Bus accidents tend to be one of the most serious types of vehicle accidents because they carry more passengers and use more space on the roadway. They often involve serious or fatal injuries to the passengers or anyone involved in the accident. A large number of crashes are due to driver error, for both the bus drivers and the vehicles that collide with them. Bus operators will quickly rely on their own attorneys after an accident occurs to begin building a defense and try to absolve themselves of any wrongdoing.