MUTCD 11th Edition (2023)
Section 2B.24 — Minimum Speed Limit Plaque (R2-4P) and Combined Maximum and Minimum Speed Limits Sign (R2-4a)
Manual on Uniform Traffic Control Devices, Section 2B.24. Standards, guidance, options and support statements, with figures and cross-references.
Section 2B.24 Minimum Speed Limit Plaque (R2-4P) and Combined Maximum and Minimum Speed Limits Sign (R2-4a) Speed Limits Sign (R2-4a) Standard: 01 A Minimum Speed Limit (R2-4P) plaque (see Figure 2B-3 ) shall be displayed only in combination with a Speed Limit sign. Where used, the R2-4P plaque shall be mounted below a Speed Limit (R2-1) sign.Option: 02 Where engineering judgment determines that slow speeds on a highway might impede the normal and reasonable movement of traffic, the Minimum Speed Limit (R2-4P) plaque may be installed below a Speed Limit (R2-1) sign to indicate the minimum…
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