Warning · Rectangle · MUTCD 11th edition
W13-1aP Advisory Speed Confirmation (plaque)
W13-1aP Advisory Speed Confirmation plaque from the MUTCD 11th edition: 3 standard sizes (48" × 15", 60" × 18", and 72" × 24"), with letter heights, border widths, and colors.
01
Standard sizes
| Size | Road type | Border | Corner radius | Letters35 | LettersMPH |
|---|---|---|---|---|---|
| 48" × 15" | Conventional Road, Single LaneConventional Road, Multi-Lane | 5/8" | 1 1/2" | 8"FHWA Series E | 6"FHWA Series E |
| 60" × 18" | ExpresswayFreeway | 3/4" | 1 7/8" | 10"FHWA Series E | 7 1/2"FHWA Series E |
| 72" × 24" | — | 3/4" | 1 7/8" | 12"FHWA Series E | 9"FHWA Series E |
02
Colors
- Legend
- Black
- Background
- Yellow
- Border
- Black
03
Standard reference
- SHS 2024 sheet 3-175 (W13-1aP, 48x15 in); MUTCD 11th ed. Table 2C-1
- SHS 2024 sheet 3-175 (W13-1aP, 60x18 in); MUTCD 11th ed. Table 2C-1
- SHS 2024 sheet 3-175 (W13-1aP, 72x24 in); MUTCD 11th ed. Table 2C-1
04
