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Difficulty: EasyLarge Commercial Trucks and No-Zones

Determine whether the following statement regarding traffic safety near large commercial vehicles is True or False: When approaching an intersection to turn right, a large commercial truck may first swing wide to the left into an adjacent lane to complete the maneuver safely.

Answer: Answer

Answer

The statement is True.
The statement is correct because large combination vehicles cannot make sharp right-hand turns strictly within a single lane without the trailer mounting the curb. Swinging wide to the left gives the rear wheels enough clearance to negotiate the corner safely.

Step-by-Step Solution

1
Analyze the physical maneuver required for long vehicles during sharp turns.
Commercial tractor-trailers experience off-tracking, where the rear trailer wheels turn in a tighter arc than the front cab wheels.
Understanding off-tracking explains why large vehicles require additional turning space at intersections.
2
Evaluate the statement based on official commercial vehicle driving practices.
Truck drivers frequently swing left before making a right turn to establish enough clearance for the trailer.
This maneuver ensures the vehicle stays clear of roadside obstacles and pedestrians on the right corner.

Key Concept

Wide Right Turns and Off-Tracking of Commercial Vehicles
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Topics

Large Commercial Trucks and No-Zones

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