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US uses technology to triage nation's potholed roads

Vans with cameras collect data to rate road condition, devise maintenance plans
Monday, August 3, 2015 - 05:50

Phoenix, Arizona

THE white Ford van rumbled down Devonshire Street, past the green-trunked palo verde trees and gravelled lawns of central Phoenix. Lasers up front mapped the road's roughness, and high-definition cameras on spider-like arms in the back recorded continuous images of

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