41-6a-602 - Speed limits established on state highways.
41-6a-602. Speed limits established on state highways.
(1) (a) The Department of Transportation shall determine the reasonable and safe speedlimit for each highway or section of highway under its jurisdiction.
(b) For each highway or section of highway, each speed limit shall be based on a trafficengineering and safety study consistent with the requirements and recommendations in the mostcurrent version of the "Manual on Uniform Traffic Control Devices."
(c) The traffic engineering and safety studies shall include:
(i) the design speed;
(ii) prevailing vehicle speeds;
(iii) accident history;
(iv) highway, traffic, and roadside conditions; and
(v) other highway safety factors.
(2) In addition to the provisions of Subsection (1), the Department of Transportation mayestablish different speed limits on a highway or section of highway based on:
(a) time of day;
(b) highway construction;
(c) type of vehicle;
(d) weather conditions; and
(e) other highway safety factors.
(3) (a) Except as provided in Subsection (3)(b) and (c), a posted speed limit may notexceed 65 miles per hour.
(b) Except as provided in Subsection (3)(c), a posted speed limit on a freeway or otherlimited access highway may not exceed 75 miles per hour.
(c) (i) The department may establish a posted speed limit on a freeway or other limitedaccess highway that exceeds the maximum speed limit in Subsection (3)(b) if the speed limit is:
(A) based on a highway traffic engineering and safety study; and
(B) is located on a portion of Interstate 15 that is between milepost 222 and milepost 64.
(ii) The department shall consider the roadway geometry and population density that maybe appropriate for a higher speed limit when establishing a speed limit under this Subsection(3)(c).
(iii) If the department establishes a posted speed limit that exceeds the limit underSubsection (3)(b), the department shall evaluate the results and impacts of increasing a speedlimit under this Subsection (3)(c).
(iv) The department shall report the findings of an evaluation conducted underSubsection (3)(c)(iii) to the Transportation Interim Committee no later than one year after aspeed limit has been imposed under this Subsection (3)(c).
(d) This Subsection (3) is an exception to the provisions of Subsections (1) and (2).
(4) When establishing or changing a speed limit, the Department of Transportation shallconsult with the following entities prior to erecting or changing a speed limit sign:
(a) the county for state highways in an unincorporated area of the county;
(b) the municipality for state highways within the municipality's incorporated area;
(c) the Department of Public Safety; and
(d) the Transportation Commission.
(5) The speed limit is effective when appropriate signs giving notice are erected alongthe highway or section of the highway.
Amended by Chapter 350, 2008 General Session