A 3-minute lesson from the Vermont course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.
Nationally, flash floods kill more people than any other weather event, and nearly half of those deaths are vehicle related. Storms and blizzards bring high winds, low visibility and slippery roads. The best choice is not to go. If you're caught out, these rules apply.
Know the rule
When hazardous driving conditions are predicted, it's best to stay home and avoid unnecessary travel.
Bridges, culverts and roadbeds may be washed away or undermined by flood water. Don't drive where water is over the road. Its depth isn't always obvious, and it can hide washouts.
Engines stall in water and you could be trapped. If your vehicle stalls in a flooded area, abandon it as soon as possible. Flood water can rise quickly and sweep away a car and its occupants.
After a downpour, water covers the road at a low spot and a car has been left there. Don't try it, because the water may hide a washout. Turn around and find another route.
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 what visibility distance does Vermont law require you to turn your headlights on in fog, rain, or snow?
If visibility drops below 1,000 feet
If visibility drops below 100 feet
If you can't clearly see people or vehicles 500 feet ahead
Only after sunset, regardless of weather
Answer: If you can't clearly see people or vehicles 500 feet ahead
If you cannot clearly see persons or vehicles 500 feet ahead, the law requires headlights on.
