In Las Vegas, a combination of traffic data, police presence and road signs reduced highway crashes 18 percent, according to a new report.

The report, which covers a study period from October 2019 to December 2020, is the most robust proof-of-concept yet for the startup Waycare, which deals in transportation data and aims to help government reduce crashes.

And it all came from drivers slowing down an average of 2 miles per hour.
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