Near Waddinxveen on the A20 dense fog descends. You are not towing a trailer and your car is not heavily loaded. What applies to your following distance?
- ✓ 3 seconds — fog alone is already reason enough for the greater distance
- 4 seconds — double the normal 2-second rule
- Just 2 seconds — the 3-second rule only applies with a trailer or heavy load
Correct answer: 3 seconds — fog alone is already reason enough for the greater distance
Explanation
The book names 3 seconds in fog, not 4 — that is 1.5x, not a doubling
Why learners get this wrong
- The book names 3 seconds in fog, not 4 — that is 1.5x, not a doubling
- The book also names rain, snow and fog as separate reasons for 3 seconds, independent of load or trailer
Topic: 3-second rule: greater following distance in rain, snow, fog and heavy loads
Read the rule: Core: 3-second rule: greater following distance in rain, snow, fog and heavy loads
Sections
- Challenge: 3-second rule: greater following distance in rain, snow, fog and heavy loads
- The model: 3-second rule: greater following distance in rain, snow, fog and heavy loads
- Core: 3-second rule: greater following distance in rain, snow, fog and heavy loads
- Why it matters: 3-second rule: greater following distance in rain, snow, fog and heavy loads
- Active recall: 3-second rule: greater following distance in rain, snow, fog and heavy loads
- Teach back: 3-second rule: greater following distance in rain, snow, fog and heavy loads
- Memory hook: 3-second rule: greater following distance in rain, snow, fog and heavy loads