Case Study: Pennsylvania DOT Working Toward Virtual Smart Work Zone Background The Pennsylvania Department of Transportation (PennDOT) is responsible for nearly 40,000 miles of roadway and 25,000 bridges, which makes it one of the largest statewide road networks in the US. PennDOT began the 2020-21 construction season with INRIX Probe Data to explore new ways to make active work zones safer for both drivers and workers. Challenge Work zones are a safety problem. FHWA reports show agencies and organizations have made only slight improvements in truck and car highway crashes in the last three years. Drivers react too slowly to speed changes, signage, lane closures, flaggers, and more in the work zone, which leads to crashes, more congestion, and secondary crashes. PennDOT did the

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