Types of Semi Truck Accidents Semi trucks are extremely heavy due to their size and weight . They can easily roll over at all speeds. These accidents can result in serious injuries for those involved. Driver error is the leading cause of semi-truck accidents. Accidents involving rollovers can also be caused by other causes. Rear-End Collisions When a vehicle rear-ends another it can cause severe damage. This is especially the case if an industrial truck or semi-truck is involved. These vehicles can weigh as much as 80,000 pounds, and may caus