'Smart' traffic boxes could help monitor roads, save money

Ohio State University engineers are working to make the traffic control boxes that stand beside major freeways smarter.

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<p><a href="http://www.physorg.com/news102663200.html">'Smart' traffic boxes could help monitor roads, save money</a></p> <p>Ohio State University engineers are working to make the traffic control boxes that stand beside major freeways smarter.</p>