Crumbling Infrastructure

I’m curious abut our current crumbling infrastructure, built during the Eisenhower days in relationship to old Roman road building. A few of those old roads still in use.

via munita:

http://en.wikipedia.org/wiki/Roman_roads

” Surprisingly, the Autobahn is safer than U.S. highways.(a 28-inch-deep roadbed versus 11 inches in the U.S.) and better maintained”
http://www.chacha.com/question/how-thick-is-a-us-road-in-comparison-to-the-thickness-of-the-autobahn

Engineers build the US system for decades instead of centuries. This is the case for “overbuilding” infrastructure.

“The road to shingle recycling: recycled roofing shingles can make an ideal ingredient in hot mix asphalt pavements.”
http://www.thefreelibrary.com/The+road+to+shingle+recycling%3a+recycled+roofing+shingles+can+make+an…-a092724924

I’m certian the use of asphalt shingles and recycling them into roads will put a dent in energy consumption.
—use thick metal or tin roofs, design houses with a steeper pitch.

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