Types of Semi Truck Accidents Due to their weight and size semi trucks are a top-heavy and can easily roll over at any speed. These accidents can cause serious injuries for the people involved. The most common cause of semi truck accidents is driver error. However, other factors could also cause the possibility of a rollover accident. Rear-End Collisions Damages that are severe can result from collisions between vehicles vehicle. This is especially the case if commercial truck or semi-truck is involved. These vehicles can be as heavy as 80,00