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Difficulty: HardSpeed Control and Following Distance

When traveling directly behind a motorcycle on a clear roadway at 55 mph55\text{ mph}, maintaining a standard two-second following distance is sufficient because the lighter mass of a motorcycle allows it to stop in approximately the same distance as a standard passenger vehicle.

Answer: Answer

Answer

The statement is false. Drivers must increase their following distance to at least four seconds when trailing a motorcycle because motorcycles can stop much more quickly than standard passenger cars and are more susceptible to sudden deceleration from road surface hazards.
The correct assessment is that the statement is false. Motorcycles can stop much more quickly than passenger cars due to their lighter weight and braking design. Following a motorcycle at the standard two-second distance leaves insufficient time and space for a car driver to react and stop if the motorcycle decelerates sharply or crashes.

Step-by-Step Solution

1
Analyze vehicle braking characteristics
Motorcycles possess a high power-to-weight ratio and efficient braking systems, enabling them to stop in much shorter distances than heavier passenger cars.
Understanding relative stopping distances is necessary to establish a safe space cushion between different vehicle classes.
2
Consider roadway hazard vulnerability
Conditions such as loose gravel, wet leaves, or pavement seams can cause a motorcyclist to swerve or brake abruptly without warning.
Hazards that minimally impact a car can force immediate evasive action from a two-wheeled vehicle.
3
Apply the appropriate following distance rule
To ensure adequate perception and braking distance, drivers following motorcycles must maintain at least a four-second gap under good conditions.
The standard two-to-three second rule does not provide enough space to avoid a rear-end collision if a motorcycle stops rapidly.

Key Concept

Motorcycle Following Distance
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Topics

Speed Control and Following Distance

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