Types of Semi Truck Accidents Due to their weight and size, semi trucks are top-heavy and can easily roll over at any speed. Accidents can cause serious injuries for the people involved. The most frequent cause of semi truck accidents is driver error. Accidents involving rollovers can also be caused by other factors. Rear-End Collisions When a vehicle rear-ends another it could cause severe damage. This is particularly so if a commercial truck like a semi-truck is involved. These trucks can weigh up to an 80,000-pound weight, and the resultin