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Difficulty: MediumSpeed Control and Following Distance

When driving on a loose gravel road, maintaining a standard three-second following distance behind the vehicle ahead provides sufficient stopping space during an emergency stop.

Answer: Answer

Answer

False. On loose gravel roads, reduced tire traction increases stopping distance, requiring drivers to extend their following distance beyond the standard three seconds.
The statement is false because loose gravel compromises tire traction, leading to longer stopping distances. Safe driving rules require drivers to increase their following distance to four seconds or more when surface grip is reduced.

Step-by-Step Solution

1
Analyze the road surface condition and its effect on vehicle friction.
Loose gravel provides considerably less grip between tires and the roadway than dry paved surfaces.
Reduced friction directly increases the distance required for a vehicle to decelerate and come to a complete stop.
2
Evaluate the standard three-second following distance rule against reduced traction scenarios.
The three-second rule is designed as a minimum baseline for ideal, dry-pavement conditions.
Adverse road surfaces, such as gravel, require extending the time-gap buffer (to four seconds or more) to account for prolonged stopping distances.

Key Concept

Adjusting Following Distance for Reduced Road Traction
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Topics

Speed Control and Following Distance

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