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Question

Difficulty: MediumParking, Standing, and Stopping Regulations

A motorist stops along a roadway bordered by a raised concrete curb. Before turning off the engine, the motorist turns the steering wheel sharply toward the center of the road (away from the curb) so that if the brakes fail, the back edge of the front tire will catch against the curb face. For which parking situation is this specific wheel orientation required?

  1. Parking facing uphill alongside a raised curbAnswer
  2. B
    Parking facing downhill alongside a raised curb
  3. C
    Parking facing uphill on a road without a curb
  4. D
    Parking facing downhill on a road without a curb

Answer

Parking facing uphill alongside a raised curb requires turning the front wheels away from the curb (toward the street).
When a vehicle is parked facing uphill next to a raised curb, turning the front wheels toward the street (away from the curb) ensures that if the vehicle rolls backward, the back edge of the front tire will roll into contact with the curb face and prevent further movement.

Step-by-Step Solution

1
Analyze the mechanical objective of turning wheels when parking on an incline.
The goal is to use gravity and either the curb or the road shoulder to prevent the vehicle from rolling into traffic.
If the parking brake fails, tire direction determines the trajectory of the rolling vehicle.
2
Evaluate the interaction between the tire position and the curb when facing uphill.
Turning the front tires away from the curb (left) means that if the car rolls backward down the hill, the rear side of the front tire will bump into and be blocked by the raised curb.
The curb acts as a chock block to hold the vehicle in place.

Key Concept

Hill parking wheel orientation rules and curb mechanics
Estimated Time:1m 0s
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Topics

Parking, Standing, and Stopping Regulations

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