A 3-minute lesson from the Arkansas course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.
Tractor-trailers are not large cars. They stop slower, turn wider and see less around them than you'd think. In most fatal car–truck crashes the car driver is blamed, so knowing how trucks move protects you.
72%
Share of fatal multi-vehicle crashes involving a tractor-trailer in which the cause is usually attributed to the car (NHTSA)
A turning vehicle's rear wheels follow a shorter path than the front wheels, so truck drivers often swing out to the left as the first step of a right turn. Check the truck's turn signal before trying to pass on the right.
A tractor-trailer ahead of you signals right but drifts left first. Don't squeeze into the gap on its right. It's swinging wide to make the turn, so stay back until it finishes.
Check your understanding
Read the question, decide on an answer, then open it to check the explanation. These are Roadwise study questions based on the source handbook.
At 55 mph, about what total stopping distance does a fully loaded tractor-trailer need?
More than 335 feet
About 225 feet
About 150 feet
About 275 feet
Answer: More than 335 feet
A fully loaded tractor-trailer traveling 55 mph may take more than 335 feet to stop completely.