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Difficulty: MediumSpeed Control and Following Distance

When following directly behind a large commercial truck or high-profile vehicle, a driver should increase their following distance to at least four seconds under normal conditions.

Answer: Answer

Answer

True
Because large commercial vehicles obstruct the view of the roadway ahead, drivers must extend their following distance to at least four seconds to preserve reaction time and maintain a clear line of sight around the truck.

Step-by-Step Solution

1
Evaluate the visibility constraints of driving behind a large commercial truck.
Large trucks block the driver's view of traffic flow and hazards further down the road.
The standard three-second rule assumes clear visibility of traffic ahead of the lead vehicle.
2
Determine the necessary adjustment to following distance.
Increasing the cushion to at least four seconds compensates for restricted sight lines and offers adequate reaction space.
A larger buffer allows for wider visual scanning around the truck's edges and extra stopping distance.

Key Concept

Following Distance Adjustments for Large Vehicles
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Topics

Speed Control and Following Distance

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