If you see a minimum speed limit sign, there's a good reason why

The purpose of maximum speed limits is easy to figure out, but why do some highways have minimum speed limits as well? It's also quite simple.

Why Do Some Speed Limit Signs Have Such Odd Numbers?

Have you ever seen a 17.3 mph limit and wondered if it was a typo? Discover the surprising reason some traffic signs use such weird numbers.
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If You See A Minimum Speed Limit Sign, There's A Good Reason Why

A highway speed limit sign showing maximum and minimum speeds. - Dennis MacDonald/Shutterstock You know the importance of staying under the maximum speed limit while driving on your state's highways, ...