A commercial motor vehicle driver is traveling on a state highway where road construction crews have recently completed asphalt repaving beneath an older overhead bridge. Why is relying solely on the posted clearance sign hazardous in this situation?
- ARepaving alters highway structural weight classifications, requiring drivers to verify Gross Combination Weight Ratings before entering bridge underpasses.
- BFresh asphalt increases tire traction, which causes mechanical and air suspension systems to rebound and elevate the trailer roofline.
- Repaving adds layers of asphalt that raise the road surface, reducing the actual clearance below the posted height if the sign has not been updated.Cevap
- DDark asphalt absorbs ambient lighting, impairing perception distance and requiring the driver to double their following distance before entering the underpass.
Cevap
Repaving adds layers of asphalt that raise the road surface, reducing the actual clearance below the posted height if the sign has not been updated.
Road resurfacing and repaving add new layers of asphalt on top of the existing pavement, raising the road surface and decreasing the actual vertical clearance beneath overhead structures. Clearance warning signs are not always adjusted immediately following roadwork, meaning the true clearance may be significantly lower than what is posted.
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Impact of road repaving on overhead clearance
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