Is it important to avoid underestimating the size and speed of an approaching large vehicle or tractor-trailer?

• A. No
• B. Yes
• C. Only at night
• D. Only in rain

Answer: (B)

Yes. Approaching large vehicles like tractor-trailers can be deceptive: they are longer, heavier, and require more distance and time to stop or maneuver than smaller cars. They also have significant blind spots, so the driver may not see you until it’s too late. If you underestimate their size and speed, you might follow too closely, tailgate, or try to pass too soon, increasing the chance of a collision or an abrupt stop. Treat them as capable of occupying more space and moving faster than they appear, and give extra room—maintain a safer following distance and be prepared to slow down or stop earlier. This applies in all conditions, not just at night or in rain.