What It Means
The Utah Basic Speed Law requires that drivers operate their vehicles at a speed that is reasonable and prudent for the conditions, no matter what the posted speed limit says. The speed limit sign shows the maximum legal speed under ideal conditions, but drivers must always adjust to actual conditions.
Key Points
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Posted speed limit is not always safe.
Even if a sign says 65 mph, you may be required to drive slower if the road, traffic, or weather conditions make that speed unsafe. -
Conditions to consider.
Utah law requires drivers to take into account:-
Traffic flow and congestion
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Weather conditions such as rain, snow, ice, fog, or wind
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Road conditions such as curves, hills, or construction zones
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Visibility, including night driving or glare from the sun
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The presence of pedestrians, bicyclists, or animals
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You can be cited below the speed limit.
If you are driving 55 mph in heavy fog on a road marked 65 mph, an officer may issue a citation because 55 is not considered safe in those conditions. -
Driving too slowly can also be unsafe.
If you drive well below the normal flow of traffic without a valid reason, and it creates a hazard, you may also be violating the Basic Speed Law.
Legal Reference
Utah Code § 41-6a-601 states:
A person may not operate a vehicle at a speed greater than is reasonable and prudent under the existing conditions, giving regard to actual and potential hazards then existing.
In Summary
The Utah Basic Speed Law is about using good judgment. The posted speed is not a guarantee of safety. Drivers must always adjust speed to match conditions, protecting themselves and others on the road.