Stiffer pavements could reduce vehicle fuel consumption by 3%: study

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CAMBRIDGE, Mass. -- A recently released MIT study shows that using stiffer pavements on US roads could reduce vehicle fuel consumption by as much as 3%. Officials say the resulting savings could add up to 273 million barrels of crude oil per...

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[Rob]

I wonder what the resulting cost would be on tire wear and increased running cost associated with running on concrete?