Types of Semi Truck Accidents Due to their weight and size, semi trucks are top-heavy and are able to roll over at any speed. These accidents can cause serious injuries to those who are involved. Driver error is the leading reason for semi-truck accidents. However, other factors can also cause a rollover crash. Rear-End Collisions Damages that are severe can result from a vehicle colliding with another vehicle. This is particularly relevant when a commercial vehicle, like a semi-truck, is involved. These trucks can weigh up to 80,000 pounds a