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Today’s speed limits grew out of studies on rural roads from the 1930s and 1940s. Now states are looking to change guidelines

The 85% rule suggests a road’s posted speed should be tied to the 15th-fastest vehicle out of every 100 traveling it in free-flowing traffic.

Jeff Mcmurray

With hundreds of billions in transportation money unspent from the 2021 infrastructure law, such changes could be a boon for Republican-majority...

Reliance on school buses has been waning for years as districts struggle to find drivers and more students attend schools far outside their...