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Difficulty: MediumDriving in Fog

If dense fog severely reduces visibility and makes continuing to drive unsafe, pulling onto the shoulder of the highway and waiting for conditions to improve is the recommended procedure.

Answer: Answer

Answer

False
Commercial driving guidelines instruct operators never to stop along the side of the road or highway shoulder in dense fog unless absolutely unavoidable. Following drivers struggling to navigate often fixate on taillights or reflective markers and may steer directly onto the shoulder, causing a high-speed collision. When visibility makes driving unsafe, operators should carefully exit the highway and park at a truck stop, rest area, or other safe location off the roadway.

Step-by-Step Solution

1
Identify the standard safety protocol for commercial motor vehicles encountering zero-visibility fog.
Recognize that continuing to drive under zero visibility is unsafe and travel must be discontinued.
Federal and state commercial driver safety guidelines require adjusting operations to adverse weather.
2
Evaluate the risk associated with parking on the highway shoulder during heavy fog.
Determine that the shoulder is an active collision hazard zone in low-visibility conditions.
Approaching vehicles cannot distinguish between travel lanes and shoulders in thick fog and frequently collide with roadside vehicles.
3
Identify the correct CDL parking procedure when fog forces a driver to stop.
The driver must completely exit the right-of-way to park in a designated parking facility, rest area, or truck stop.
Completely leaving the roadway eliminates the risk of being struck by trailing traffic.

Key Concept

Safe pull-off and parking protocol in dense fog
Estimated Time:1m 0s
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Topics

Driving in Fog

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