A 3-minute lesson from the Louisiana course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.
At night you see less, glare can blind you, and others have trouble seeing you. The key rule: drive at a speed that lets you stop within the distance your headlights light up.
Front fog lights may be used in hazardous weather. A red rear fog light is only for dense fog or similar conditions that seriously reduce visibility; switch fog lights off when visibility improves.
Use high beams whenever there are no oncoming vehicles; they let you see twice as far as low beams. If an oncoming driver keeps high beams on, flash yours once quickly, but never keep your brights on to 'get back' at them.
You're doing 60 mph on a dark highway with low beams on because of oncoming traffic. Low beams show only 150 to 200 feet, about right for 45 mph. Slow down until you can stop within your headlights' reach.
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.
About how far ahead can you see clearly using low-beam headlights?
150 to 200 feet
350 to 400 feet
500 to 600 feet
50 to 75 feet
Answer: 150 to 200 feet
Low beams let you see clearly about 150 to 200 feet ahead.
