Regulatory · Rectangle · MUTCD 11th edition
R2-4a Combined Maximum and Minimum Speed Limits
R2-4a Combined Maximum and Minimum Speed Limits sign from the MUTCD 11th edition: 3 standard sizes (24" × 48", 36" × 72", and 48" × 96"), with letter heights, border widths, and colors.
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Standard sizes
| Size | Road type | Border | Corner radius | LettersSPEED LIMIT | Letters55 | LettersMINIMUM | Letters30 |
|---|---|---|---|---|---|---|---|
| 24" × 48" | Conventional Road, Single LaneConventional Road, Multi-Lane | 3/4" | 1 7/8" | 4"FHWA Series E | 10"FHWA Series E | 4"FHWA Series C | 8"FHWA Series D |
| 36" × 72" | Expressway | 7/8" | 2 1/4" | 6"FHWA Series E | 14"FHWA Series E | 6"FHWA Series C | 12"FHWA Series D |
| 48" × 96" | Freeway | 1 1/4" | 3" | 8"FHWA Series E | 16"FHWA Series E | 8"FHWA Series C | 14"FHWA Series D |
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Colors
- Legend
- Black
- Background
- White
- Border
- Black
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Standard reference
- SHS 2024 sheet 2-27 (R2-4a, 24 x 48); MUTCD 11th ed. Table 2B-1
- SHS 2024 sheet 2-27 (R2-4a, 36 x 72); MUTCD 11th ed. Table 2B-1
- SHS 2024 sheet 2-27 (R2-4a, 48 x 96); MUTCD 11th ed. Table 2B-1
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