States rethink an old rule that allows drivers to determine the speed limit

Rose Hammond has long urged authorities in northwest Ohio to lower the speed limit on a road near her assisted living community, citing safety concerns, but a recent analysis found the current limit is actually 5 mph too low based on the outdated 85% rule. This rule, which ties speed limits to the speed of the majority of drivers, is being reconsidered as states explore alternatives that prioritize safety and consider factors like pedestrian risk and road usage.

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