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Difficulty: MediumDriving in Fog and Reduced Visibility

You are driving on a rural two-lane road when dense patches of fog suddenly lower visibility to less than 100 feet. A vehicle behind you is following closely. What is the safest action you should take under these conditions?

  1. Gradually reduce your speed, ensure your low-beam headlights are turned on, and signal early before pulling completely off the paved roadway to a safe location.Answer
  2. B
    Maintain your current speed at the posted limit so the vehicle behind does not hit you, and switch to high-beam headlights to see further ahead.
  3. C
    Accelerate slightly to create distance between your vehicle and the follower while operating with only your parking lights turned on.
  4. D
    Brake hard immediately to force the tailgating driver to drop back, while continuously flashing your high-beam headlights.

Answer

Gradually reduce your speed, ensure your low-beam headlights are turned on, and signal early before pulling completely off the paved roadway to a safe location.
When visibility drops significantly in fog, safe driving requires decelerating gradually so that your stopping distance remains within your line of sight. Using low-beam headlights prevents light from reflecting off fog moisture into your eyes. If conditions become too hazardous to continue, signaling early and pulling completely off the paved portion of the road is the safest protocol.

Step-by-Step Solution

1
Assess visibility and road conditions.
Recognize that visibility under 100 feet requires immediate speed reduction according to the Basic Speed Law.
Vehicle stopping distance must never exceed the distance you can clearly see ahead.
2
Manage trailing traffic safely.
Apply gentle pressure on the brake pedal early to illuminate brake lights and warn the driver behind before decelerating smoothly.
Abrupt braking in low-visibility conditions frequently leads to chain-reaction rear-end crashes.
3
Ensure proper vehicle lighting and positioning.
Use low-beam headlights to direct light downward and signal early to move completely off the paved shoulder if stopping.
Low beams minimize glare reflecting off moisture, and clearing the paved road protects your vehicle from oncoming traffic.

Key Concept

Basic Speed Law and Safe Driving Practices in Low Visibility
Estimated Time:1m 0s
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Topics

Driving in Fog and Reduced Visibility

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