MUTCD 11th Edition (2023)
Section 2I.09 — Radio Information Signing (D12-1 Series)
Manual on Uniform Traffic Control Devices, Section 2I.09. Standards, guidance, options and support statements, with figures and cross-references.
Section 2I.09 Radio Information Signing (D12-1 Series) Option: 01 A Radio-Weather Information (D12-1) sign (see Figure 2I-8) may be used in areas where difficult driving conditions commonly result from weather systems. Radio-Traffic Information (D12-1a) signs may be used in conjunction with traffic management systems. Standard: 02 Radio-Weather and Radio-Traffic Information signs shall have a white legend and border on a blue background. Only the numerical indication of the radio frequency shall be used to identify a station broadcasting travel-related weather or traffic information. No more…
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