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Difficulty: MediumFreeway, Highway, and Expressway Driving Rules

You are driving on a multi-lane freeway with a posted maximum speed limit of 65 mph when torrential rain severely reduces visibility and creates standing water on the roadway. According to traffic safety laws, which of the following actions must you take?

  1. Reduce your driving speed to a rate that is safe and reasonable for the wet road conditions, regardless of the posted 65 mph limit.Answer
  2. B
    Maintain a constant speed of 65 mph because driving slower than the posted maximum speed limit on a freeway is illegal.
  3. C
    Increase your speed slightly above 65 mph to pass slower traffic and clear the heavy rain zone as quickly as possible.
  4. D
    Move onto the right paved shoulder and continue driving at 45 mph with your hazard lights flashing until visibility improves.

Answer

Reduce your driving speed to a rate that is safe and reasonable for the wet road conditions, regardless of the posted 65 mph limit.
The Basic Speed Law requires drivers to adjust their speed downward when rain, fog, or poor surface traction makes normal posted speeds unsafe. Maintaining control of the vehicle takes priority over driving at the posted maximum speed limit.

Step-by-Step Solution

1
Identify the environmental hazards present on the freeway.
Severe weather conditions (torrential rain, low visibility, standing water) lower traction and increase braking distance.
Safe operating speeds depend on traffic density, road surface conditions, and visibility.
2
Apply statutory driving rules governing speed control under adverse conditions.
The Basic Speed Law dictates adjusting vehicle speed below the posted maximum speed limit when conditions render the maximum limit unsafe.
Posted speed limits apply under ideal driving conditions, requiring speed reduction when hazards occur.

Key Concept

Basic Speed Law Compliance on Freeways
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Topics

Freeway, Highway, and Expressway Driving Rules

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