Question

Difficulty: MediumHydroplaning and Wet Road Traction Loss

A driver traveling at 50 mph on a wet highway feels the steering wheel become light and unresponsive, indicating that the tires have begun hydroplaning. Which of the following is the safest immediate action to regain vehicle traction?

  1. Ease off the accelerator gradually and keep the steering wheel pointed straight until tire contact is re-establishedAnswer
  2. B
    Apply firm and continuous brake pressure to bring vehicle speed below the hydroplaning threshold quickly
  3. C
    Steer sharply toward the paved shoulder to exit the lane of standing water immediately
  4. D
    Maintain the posted speed limit and pump the accelerator to clear accumulated water from the tire grooves

Answer

Gradually easing off the accelerator while keeping the steering wheel straight allows the vehicle to decelerate smoothly until tire tread re-engages the road surface safely.
Easing off the accelerator reduces momentum smoothly so the vehicle's weight pushes tires back through the water film onto the road surface. Holding the steering wheel straight ensures stability when grip is recovered.

Step-by-Step Solution

1
Identify the symptoms of hydroplaning
Recognize that a loss of steering resistance and engine pitch changes signify tires floating on standing water.
Early detection allows for smooth control inputs before the vehicle rotates out of its lane.
2
Release gas pedal smoothly without abrupt braking
Vehicle speed declines steadily due to aerodynamic drag and water resistance.
Sudden weight transfer from harsh braking disrupts remaining friction and triggers uncontrollable skids.
3
Maintain neutral straight steering alignment
Tires recontact the road surface aligned with the vehicle's direction of travel.
If front wheels are turned when traction suddenly returns, side forces will pull the vehicle into a sharp loss of control.

Key Concept

Hydroplaning Recovery Procedure
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