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Difficulty: MediumStopping Distance Components

Braking distance is defined as the total distance a commercial motor vehicle travels from the moment the driver perceives a hazard on the roadway until the vehicle comes to a complete stop.

Answer: Answer

Answer

False
The statement is false because it defines total stopping distance rather than braking distance. In commercial vehicle operations, braking distance is strictly the distance traveled from the moment the vehicle brakes are applied until the vehicle comes to a complete stop.

Step-by-Step Solution

1
Analyze the starting and ending boundaries in the provided definition
The statement spans from initial hazard perception by the driver to the vehicle reaching a complete standstill.
Identifying the defined interval is necessary to distinguish individual stopping components from total stopping distance.
2
Compare the interval against CDL stopping distance definitions
The span from hazard perception to a full stop constitutes Total Stopping Distance, which combines perception distance, reaction distance, brake lag distance (on air brake vehicles), and braking distance.
Braking distance is only the final phase of the stopping sequence, beginning when the brakes engage.
3
Determine the truth value of the statement
Because the statement incorrectly labels total stopping distance as braking distance, the statement is false.
Braking distance measures only the physical deceleration distance while the brakes are actively slowing the vehicle.

Key Concept

Distinction between braking distance and total stopping distance
Estimated Time:1m 0s
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Topics

Stopping Distance Components

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