Types of Semi Truck Accidents Due to their weight and size semi trucks are extremely heavy and are able to roll at any speed. These accidents can result in serious injuries to those involved. Driver errors are the main reason for semi-truck accidents. However, other factors can also cause an accident involving a rollover. Rear-End Collisions If a vehicle rear-ends a vehicle, the result can be severe damage. This is especially so if a commercial truck, like a semi-truck, is involved. They can weigh as much as 80,000 pounds and the impact that