Drivers operating specialized low-clearance equipment, such as lowboys or car haulers, should seek an alternate route rather than attempting to traverse a humped railroad grade crossing.
Answer: Answer
Answer
True. Drivers operating low-slung combinations such as lowboys, car haulers, or moving vans must use an alternate route around humped grade crossings to avoid high-centering.
Low-clearance vehicles—including lowboy trailers, auto transporters, moving vans, and drop-frame livestock trailers—have very little space below the chassis. When traversing a humped railroad crossing, the center of the trailer easily contacts the elevated track crest while the axles are on lower slopes, leaving the vehicle immobilized on the tracks. Commercial driving standards require taking an alternate route to avoid this hazard.
Step-by-Step Solution
Key Concept
Undercarriage clearance limitations of low-slung commercial vehicles at humped railroad grade crossings
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