Speed regulations -- Safe and appropriate speeds at certain locations -- Prima facie speed limits -- Emergency power of the governor.

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  • (1) A person may not operate a vehicle at a speed greater than is reasonable and prudent under the existing conditions, giving regard to the actual and potential hazards then existing, including when:
    • (a) approaching and crossing an intersection or railroad grade crossing;
    • (b) approaching and going around a curve;
    • (c) approaching a hill crest;
    • (d) traveling upon any narrow or winding roadway;
    • (e) traveling in, through, or approaching other hazards that exist due to pedestrians, other traffic, weather, or highway conditions; and
    • (f) the speed causes the person to fail to maintain control of the vehicle or stay within a single lane of travel.
  • (2) Subject to Subsections (1) and (4) and Sections 41-6a-602 and 41-6a-603, the following speeds are lawful:
    • (a) 20 miles per hour in a reduced speed school zone as defined in Section 41-6a-303;
    • (b) 25 miles per hour in any urban district; and
    • (c) 55 miles per hour in other locations.
  • (3) Except as provided in Section 41-6a-604, any speed in excess of the limits provided in this section or established under Sections 41-6a-602 and 41-6a-603 is prima facie evidence that the speed is not reasonable or prudent and that it is unlawful.
  • (4) A violation of Subsection (1) is an infraction.
  • (5) The governor by proclamation in time of war or emergency may change the speed limits on the highways of the state.




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