Section 605 – Minimum speed regulations.

• (1) A person may not operate a motor vehicle at a speed so slow as to impede or block the normal and reasonable movement of traffic except when:
  • (a) a reduced speed is necessary for safe operation;
  • (b) upon a grade; or
  • (c) in compliance with a traffic-control device.

• (2) Operating a motor vehicle on a limited access highway at less than the speed limit side by side with and at the same speed as a vehicle operated in the adjacent right lane is evidence of a violation of Subsection (1).

• (3)
  • (a) If, based on an engineering and traffic investigation, a highway authority determines that slow speeds on any part of a highway under its jurisdiction consistently impede the normal and reasonable movement of traffic, the highway authority may post a minimum speed limit.
  • (b) If a minimum speed limit is posted under this Subsection (3), a person may not operate a vehicle at a speed below the posted minimum speed limit except:
    • (i) when necessary for safe operation; or
    • (ii) in accordance with Section 41-6a-205.
  • (c) The minimum speed limit is effective when appropriate signs giving notice are erected along the highway or section of the highway.

• (4) A violation of this section is an infraction.

Amended by Chapter 412, 2015 General Session