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Difficulty: MediumMotorcycles and Motor-Driven Cycles

A driver intends to change lanes on a multi-lane highway. Why is relying strictly on rearview and side mirrors unsafe when scanning for nearby motorcycles, and what action must the driver take?

  1. Motorcycles have a narrower profile and easily hide in vehicle blind spots, so the driver must perform a physical shoulder head-check before moving.Answer
  2. B
    Motorcycles must yield right-of-way to changing passenger vehicles at all times, making mirror checks a secondary courtesy rather than a safety requirement.
  3. C
    A driver is legally permitted to pass or cut into a lane adjacent to a motorcycle near intersections without checking blind spots.
  4. D
    A solid green traffic signal grants unconditional right-of-way to change lanes without visually confirming the position of oncoming or adjacent motorcycles.

Answer

Motorcycles have a narrower profile and easily hide in vehicle blind spots, so the driver must perform a physical shoulder head-check before moving.
Because motorcycles have a significantly smaller visual silhouette than cars, they frequently fall entirely within a vehicle's mirror blind spots. Turning one's head to look over the shoulder before changing lanes is the only reliable way to verify that the adjacent lane is clear.

Step-by-Step Solution

1
Identify the physical limitations of vehicle mirrors when detecting smaller road users.
Standard side and rearview mirrors leave unmonitored blind spot zones along the rear quarters of a passenger vehicle where a narrow motorcycle can easily fit unnoticed.
Understanding mirror limitations highlights why passive mirror scanning alone is insufficient for traffic safety.
2
Determine the necessary preventive driving behavior.
The driver must turn their head to perform a physical shoulder check directly into the blind spot zone before initiating any lateral movement or lane change.
A direct physical head-check ensures visual confirmation of areas not reflected in mirrors.

Key Concept

Motorcycle Blind Spot Visibility and Head-Check Requirements
Estimated Time:1m 0s
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Topics

Motorcycles and Motor-Driven Cycles

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