A 3-minute lesson from the Utah course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.
Fatigue slows your mind and body and makes you see less clearly, so you may not stop in time. At night you can see only as far as your headlights reach. Both call for rest, more space, and exact rules for using your lights.
Before a long trip:
Get enough sleep; most people need 7 to 9 hours to stay awake during the day
If you start to feel tired, stop driving: pull off at an exit or rest area for a 20-minute power nap, or find a place to sleep for the night. Don't drive late at night.
Your headlights only light a limited distance ahead
Put it into practice
On a dark two-lane highway your high beams are on. When an oncoming car's lights appear, you dim before it is within 500 feet. Later, catching up to a car ahead, you dim once you're within 300 feet.
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.
How many feet ahead must you be able to see clearly, or you must use your headlights?
500 feet
1,000 feet
300 feet
1,500 feet
Answer: 1,000 feet
Headlights are required whenever you cannot see 1,000 feet ahead clearly.
