Types of Semi Truck Accidents Semi trucks are hefty due to their size and weight . They can easily roll over at any speed. These accidents can result in serious injuries to the individuals involved. Driver error is the leading reason for semi-truck accidents. Accidents involving rollovers can also be caused by other factors. Rear-End Collisions Serious damage can result from collisions between vehicles vehicle. is particularly true when a commercial truck such as a semi-truck is involved. These vehicles can weigh as much as 80,000 pounds and