The only thing worse than getting into an accident with a fellow passenger vehicle is getting into an accident with a commercial vehicle like a semi truck or bus. Commercial vehicles handle differently than passenger vehicles.
Even if you never get behind the wheel of a commercial vehicle, understanding the difference between commercial and passenger vehicles and how to drive around them may save your life. According to Safer America, you should be careful to leave enough space around commercial vehicles and never pass on on the right-hand side.
Even though passenger vehicles are heavy, they are nowhere close to the weight of commercial vehicles. For example, the average semi truck can weigh between 12,000 and 80,000 pounds, depending on if it is full or empty; if full, the weight may then depend on the cargo.
This means that a commercial vehicle will need much more room to stop as compared to a passenger vehicle due to the laws of physics. It is generally good to at least give 30 feet of space behind and in front of a commercial vehicle while driving if possible.
Never pass on the right
Generally speaking, passing on the right is illegal whether you are doing it to a commercial or passenger vehicle. However, passing a commercial vehicle on the right is considerably more dangerous. This is because the blind spots on commercial vehicles are much longer on the right hand side. If you try to pass a commercial vehicle on the right, it is possible that the vehicle will not see you and the driver will try to merge into you.