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Question

Difficulty: EasyPassing, Overtaking, and Lane Changing Rules

A driver preparing to change lanes on a multi-lane roadway checks both the rearview mirror and side mirrors. Why is a physical shoulder check still required before executing the lane change?

  1. To identify vehicles located in blind spots that cannot be seen in the mirrorsAnswer
  2. B
    To legally exceed the posted speed limit while completing the maneuver
  3. C
    To eliminate the need for activating a turn signal prior to moving over
  4. D
    To confirm passing permission on a roadway marked with a solid yellow line

Answer

To identify vehicles located in blind spots that cannot be seen in the mirrors
Rearview and side-view mirrors leave areas around the vehicle's rear sides unobserved, known as blind spots. Looking over the shoulder before changing lanes is necessary to ensure no vehicle is traveling in these unobserved zones.

Step-by-Step Solution

1
Identify mirror limitations
Rearview and side mirrors leave unobserved visual gaps around the rear sides of the vehicle.
Mirrors provide a limited field of view behind the vehicle.
2
Determine the role of the shoulder check
Turning one's head directly looks into the vehicle's blind spots.
Direct visual checks prevent side-collision accidents with adjacent traffic.

Key Concept

Blind Spot Verification During Lane Changing
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Topics

Passing, Overtaking, and Lane Changing Rules

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