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Difficulty: EasyEvasive Steering and Avoiding Collisions

When executing an emergency evasive maneuver to avoid a collision, applying the service brakes firmly while turning sharply is recommended to maintain vehicle control.

Answer: Answer

Answer

False. Drivers should avoid braking while turning sharply during an evasive maneuver because braking during a hard turn can lock the wheels and cause a total loss of steering control.
The statement is false. Commercial driving safety principles specify that a driver must not apply the brakes while turning sharply to avoid an obstacle. Braking during a sharp turn can lock the wheels, making steering impossible and resulting in a loss of directional control.

Step-by-Step Solution

1
Identify the traction demands during an evasive steering maneuver.
Recognize that tire grip is required for turning and that braking reduces available lateral traction.
Tires have a finite amount of traction to split between steering and deceleration.
2
Evaluate the mechanical consequence of applying brakes during a sharp steering input.
Determine that braking while turning sharply easily locks the front wheels, causing the commercial vehicle to slide straight ahead.
Commercial driver regulations explicitly instruct drivers not to brake while actively turning sharply to avoid an obstruction.

Key Concept

Braking restrictions during emergency evasive steering
Estimated Time:45s
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Topics

Evasive Steering and Avoiding Collisions

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