MUTCD 11th Edition (2023)
Section 2D.02 — Color, Retroreflection, and Illumination
Manual on Uniform Traffic Control Devices, Section 2D.02. Standards, guidance, options and support statements, with figures and cross-references.
Section 2D.02 Color, Retroreflection, and Illumination Support: 01 Requirements for illumination, retroreflection, and color are stated under the specific headings for individual guide signs or groups of signs. General provisions are given in 2A.06, 2A.21, and 2A.22.Standard: 02 Except as otherwise provided in this Manual for individual signs or groups of signs, guide signs on streets and highways shall have a white message and border on a green background. All messages, borders, and legends shall be retroreflective and all backgrounds shall be retroreflective or illuminated. Support: 03…
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