Gallery: Keystone Parkway Is the Greenest Highway Intersection in the U...


The suburban city of Carmel, Indiana has built a double teardrop roundabout that could very well be the greenest highway intersection in the United States. It’s a compelling solution to the various challenges the city faced when they needed a major upgrade to one of their busiest intersections. The unique solution has saved many buildings, reduced accidents dramatically, reduces carbon emissions and is much more pedestrian friendly — all the while saving the city money as compared to a traditional highway intersection.  While America’s devotion to cars will not wane anytime soon, maybe America’s roads can get a bit better at reducing the automobile’s impact.

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1 Comment

  1. skippypt May 12, 2011 at 8:56 am

    I’d love to see the truck turning movements, a traditional left looks difficult for a semi. Great looking alternative though!

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