Minimum Speed 40

Drivers must travel at least 40 mph on this roadway.

Used on freeways and other high-speed facilities where unusually slow vehicles disrupt traffic flow and create rear-end crash risk. Drivers must travel at or above the posted minimum (40 mph here) unless conditions such as weather, traffic, or road work make a higher speed unsafe. If your vehicle cannot maintain the minimum, take the next exit or use an alternate route.

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