In normal times, it’s faster to walk along Seventh Street in downtown Los Angeles than to drive. The traffic is so constant—some 16,000 cars a day—that closing the street for repairs was virtually unthinkable. Aside from fixing dangerous potholes, officials in America’s most notoriously car-clogged city hadn’t repaved the cracked, uneven roadway in more than a decade and weren’t planning to do so anytime soon.
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