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Question

Difficulty: MediumDriving in Adverse Weather and Low Visibility

You are driving on a highway when dense fog reduces visibility to near zero, making it unsafe to continue driving. Arrange the following actions in the correct chronological order from first to last to safely remove your vehicle from the roadway.

  1. 1Signal your intention and gradually decrease your speed without hard braking.
  2. 2Steer your vehicle completely off the paved roadway onto the outer shoulder or rest area.
  3. 3Set the parking brake and turn off all operational headlights, taillights, and foot-brake lights.
  4. 4Turn on your emergency hazard warning lights (flashers).

Answer

The correct sequence for safely stopping off the road in severe fog is: first, signal and gradually reduce speed; second, steer completely off the paved roadway; third, set the parking brake and turn off headlights/brake lights; fourth, activate the emergency hazard flashers.
When pulling off the road due to zero-visibility fog, the correct protocol requires reducing speed smoothly first, exiting the paved roadway entirely second, turning off standard driving/brake lights third to prevent trailing cars from following your lights off the road, and activating emergency hazard flashers fourth.

Step-by-Step Solution

1
Signal your intent early and ease off the accelerator to decelerate gradually.
Alerts vehicles behind you without creating a sudden stopping hazard.
Abrupt braking in dense fog frequently triggers multi-vehicle pileups.
2
Guide the vehicle entirely off the paved surface into a safe area or beyond the shoulder line.
Clears the active travel lane completely.
Stopping inside a travel lane during low visibility creates an extreme collision risk.
3
Engage the parking brake, take your foot off the brake pedal, and turn off headlights and taillights.
Eliminates illuminated tail and brake lights that could guide other motorists off the road into your vehicle.
In dense fog, disoriented drivers tend to follow tail lights ahead; keeping brake lights on causes drivers behind to steer directly toward your parked car.
4
Switch on four-way hazard flashers.
Clearly warns approaching traffic that a stationary obstacle is present off the travel lane.
Hazard lights distinguish a parked emergency situation from moving traffic.

Key Concept

Safe emergency procedure for pulling off the roadway in severe low-visibility fog
Estimated Time:1m 30s
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Topics

Driving in Adverse Weather and Low Visibility

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