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Agency of Transportation chief: Trucks cause far more wear than cars, but water and age drive most Vermont road damage
Summary
Jeremy Reed, chief engineer at the Agency of Transportation, told the House Transportation committee that while an 80,000-pound tractor-trailer can cause orders of magnitude more pavement wear than a passenger car, Vermont's primary pavement problems stem from age, poor drainage and freeze-thaw cycles rather than vehicle weight alone.
Jeremy Reed, chief engineer at the Agency of Transportation, told the House Transportation committee on May 5 that heavy trucks impose far greater incremental damage on pavements than passenger cars but that, in Vermont, environmental factors and aging substructure often dominate pavement deterioration.
Reed cited engineering literature compiled by the trucking sector and AASHTO, saying, "for every 80,000-pound tractor-trailer, it puts as much sort of force and and deterioration into the roadway as 6,100 cars." He noted trucking-industry analyses use different…
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