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Standard Highway Signs 2004 Known Errors

Standard Alphabets

  • In the text and figure on p. 9-5, the lower-case letter and loop heights are incorrect. The correct dimensions are 3 inches for a lower-case letter and "x" in Figure 6, and 3.06 inches for the height above the baseline for a rounded lower-case letter and "o" in Figure 6. A more detailed explanation of lower-case letter heights is provided in Section 2A.13 of the MUTCD.