Top Causes of Big Truck Collisions

For the most part, big truck drivers are skilled and patient drivers. Although the size and weight of semi-trucks are related to the dangers, additional components contribute to big truck collisions.


Speeding is the No. 2 cause of semi-truck accidents, involving nearly 23% of commercial truck crashes. In 2012, the National Highway Traffic Safety Administration reported that nearly 18% of all large-truck drivers involved in a fatal crash had at least one prior speeding conviction. Typically, commercial trucks weigh about 80,000 pounds, and as their speed increases the force is made even more deadly.

Unfamiliar Roadways

Large trucks travel thousands of miles to meet their destination, and through their travel avoiding an unfamiliar roadway is almost impossible. If a driver is forced to detour, they may be looking into the distance, or off to the side to find an alternate route. It’s a crucial aspect for truck drivers to plan trips accordingly and be prepared.

Blind Spots

The typical tractor trail is 12 – 13 feet long. Although drivers are trained to check blind spots frequently and carefully, inadequate surveillance accounts for 14% of semi-truck wrecks.

Driver Fatigue

In 2003, driver fatigue was one of the top two causes for large truck collisions. That same year, the National Traffic Safety Board issued a rule stating that semi-truck and bus drivers must get eight hours of continuous sleep after 15 hours of duty or 10 hours of driving. Although the law’s implementation has seemed to help, fatigue is still one of the top five causes of semi-truck collisions.