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Difficulty: MediumLarge Commercial Trucks and No-Zones

When stopping your vehicle behind a large commercial truck at an intersection on an uphill grade, you should maintain a greater distance than normal because heavy trucks can roll backward slightly when beginning to move.

Answer: Answer

Answer

True
The statement is true because large commercial trucks often roll backward slightly when starting from a full stop on a steep incline due to the operational delay between brake disengagement and power application. Maintaining extra stopping distance provides a safe cushion against collision and keeps your vehicle visible in the truck driver's side mirrors.

Step-by-Step Solution

1
Analyze the mechanical behavior of large commercial vehicles when starting from a full stop on an upgrade.
Heavy trucks carrying substantial freight often experience slight backward movement during the brief transition between releasing the foot brake and applying engine torque.
Understanding heavy vehicle operational dynamics helps drivers anticipate potential hazards when stopped near trucks.
2
Evaluate safe stopping distance recommendations for passenger vehicles stopped behind trucks on inclines.
Drivers should leave an expanded safety buffer—at least one to two extra car lengths—behind a stopped truck on a hill.
This extra buffer prevents a collision if the truck rolls back and keeps your vehicle visible in the truck's side mirrors beyond its rear No-Zone.

Key Concept

Commercial Truck Hill Stopping Distance and Rollback Hazard
Estimated Time:45s
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Topics

Large Commercial Trucks and No-Zones

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