What are some of the most common causes of truck accidents?

The Federal Motor Carrier Safety Administration’s study lists the top 5 causes of semi-truck accidents as:

1. Prescription drugs or illicit drugs affecting the truck driver’s reaction time;
2. Speeding;
3. Not being familiar with the roads
4. Over-the-counter medications
5. Failing to check all sides of the vehicle before making a turn.

Surprisingly, driver fatigue is not in the top 5.