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Difficulty: EasySpeed and Road Conditions

During freezing weather, a truck driver encounters sheet ice covering the road surface of an overpass. According to standard commercial vehicle safety guidelines, what speed adjustment should be made under these conditions?

  1. A
    Decrease speed by about one-third and turn on the engine retarder
  2. B
    Cut speed by one-half and maintain that pace for the rest of the trip
  3. Slow the vehicle to a crawl and stop driving as soon as safely possibleAnswer
  4. D
    Maintain cruising speed until entering a curve, then apply firm brake pressure

Answer

Slow the vehicle to a crawl and stop driving as soon as safely possible
Under official CDL safety regulations, when a driver encounters ice on the road, the vehicle must be slowed to a crawl and the driver should pull off the roadway as soon as it is safe to do so.

Step-by-Step Solution

1
Identify the roadway surface condition
The roadway is covered with sheet ice
Different surface conditions dictate specific CDL speed reduction rules.
2
Apply the established CDL speed protocol for icy roads
Reduce speed to a crawl and seek a safe place to stop driving
Ice offers minimal tire traction, making normal travel and safe braking distances impossible.

Key Concept

Commercial vehicle speed adjustment for icy road conditions
Estimated Time:45s
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Topics

Speed and Road Conditions

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