2Speed management#

2.1General#

2.1.2General principles#

2.1.2.1Determining speed limits#

Difference

Replace item (d) with the following: All signposted speed limits shall be in multiples of 10 km/h, except for 25 km/h personal mobility device (PMD) speed limits installed in accordance with the QRSTUV: GSM.

2.1.2.2Installation of speed limit signs#

Difference

Replace the last sentence of item (b) with the following: Signs shall also be duplicated on the right hand side of a multilane carriageway.

Addition
  1. e)Where provided for the benefit of turning traffic at intersections, speed limit signs shall be positioned such that it is visible to drivers after completing the turning manoeuvre.
  2. f)On single lane ramps the Speed Limit (R4-1) sign shall be installed on the left-hand side of the ramp. On multilane ramps the Speed Limit (R4-1) sign shall be duplicated. On multilane off ramps, the ON RAMP (R9-17) supplementary plate shall be installed below the Speed Limit (R4-1) sign installed on the right-hand side of the ramp (see Clause 3.1.11(c)).
  3. g)Speed limit signs displaying an increase in speed limit should not be installed just in advance of a section of lower speed value alignment, hazard, or other feature, but rather after. Speed limit signs displaying any subsequent increase in speed limit should not be visible prior to the section of lower speed value.
  4. h)A Speed Limit (R4-1) sign displaying a lower speed limit should not be installed after a section of lower speed value alignment, hazard, or other feature. Instead, the lower Speed Limit (R4-1) sign should be installed in advance of the section or feature.

2.2Types of speed zones#

2.2.1Length of a linear speed zone#

Difference

Replace the first sentence with: The minimum length of a linear speed zone should be as specified in Table 3.4 of the QRSTUV: GSM.

Source: MUTCD Part 4 · page 7 Open PDF at this page Search this document