Types of Semi Truck Accidents Semi trucks are heavy because of their size and weight and can easily be rolled over at any speed. These accidents can result in serious injuries to those involved. The most frequently cited cause of semi truck accidents is driver error. However, other factors may also contribute to accidents involving rollovers. Rear-End Collisions When a vehicle rear-ends another, the result can be severe damage. This is especially true when a semi-truck or commercial truck is involved. These vehicles can weigh as much as 80,00