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Difficulty: MediumWarning Signs

A yellow diamond-shaped warning sign indicating an overhead clearance limit (such as '12′-6″') applies only to commercial trucks and can be disregarded by drivers of passenger vehicles carrying elevated roof cargo.

Answer: Answer

Answer

False
Yellow diamond warning signs display advance notifications of physical hazards ahead for all road users. A low clearance sign displaying a specific height (e.g., '12′-6″') warns drivers that overhead structures have limited clearance. Drivers of passenger vehicles carrying high roof loads (such as bicycles, canoes, or cargo boxes) must be aware of their total clearance height, as the restriction applies to any vehicle that exceeds the posted dimension.

Step-by-Step Solution

1
Identify the sign type and purpose
Yellow diamond signs are warning signs that alert all drivers to potential physical hazards ahead, including low overpasses.
Traffic warning signs apply to any vehicle that meets the physical conditions described by the sign.
2
Determine applicability to passenger vehicles with roof loads
Passenger vehicles carrying items on roof racks increase their total vehicle height above standard vehicle dimensions.
Height restrictions are evaluated based on total height from the road surface to the highest point of the vehicle and its cargo.
3
Evaluate the statement
The sign cannot be disregarded by non-commercial drivers if their total vehicle height exceeds the posted clearance limit.
Disregarding the posted clearance sign leads to overhead collisions regardless of vehicle classification.

Key Concept

Overhead Clearance Warning Sign Applicability
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Topics

Warning Signs

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