MUTCD 11th Edition (2023)

Section 2B.21 — Speed Limit Sign (R2-1)

Manual on Uniform Traffic Control Devices, Section 2B.21. Standards, guidance, options and support statements, with figures and cross-references.

Section 2B.21 Speed Limit Sign (R2-1) Support: 01 In general, the maximum speed limits applicable to rural and urban roads are established: A. Statutorily – a maximum speed limit applicable to a particular class of road, such as freeways or city streets, that is established by State law; or B. As speed zones – based on engineering studies. 02 State statutory limits might restrict the maximum speed limit that can be established on a particular road, notwithstanding what an engineering study might indicate. 03 Agencies with designated authorities to set speed limits, which include States, and…

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