Warning · Rectangle · MUTCD 11th edition
W13-1P Advisory Speed (plaque)
W13-1P Advisory Speed plaque from the MUTCD 11th edition: 3 standard sizes (18" × 18", 24" × 24", and 30" × 30"), with letter heights, border widths, and colors.
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Standard sizes
| Size | Road type | Border | Corner radius | Letters35 | LettersMPH |
|---|---|---|---|---|---|
| 18" × 18" | Conventional Road, Single LaneConventional Road, Multi-Lane | 5/8" | 1 1/2" | 8"FHWA Series E | 3"FHWA Series E |
| 24" × 24" | Expressway | 5/8" | 1 1/2" | 10"FHWA Series E | 4"FHWA Series E |
| 30" × 30" | Freeway | 3/4" | 1 7/8" | 12"FHWA Series E | 5"FHWA Series E |
02
Colors
- Legend
- Black
- Background
- Yellow
- Border
- Black
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Standard reference
- SHS 2024 sheet 3-174 (W13-1P, 18 in); MUTCD 11th ed. Table 2C-1
- SHS 2024 sheet 3-174 (W13-1P, 24 in); MUTCD 11th ed. Table 2C-1
- SHS 2024 sheet 3-174 (W13-1P, 30 in); MUTCD 11th ed. Table 2C-1
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