Regulatory · Rectangle · MUTCD 11th edition
R4-18 Do Not Pass on Shoulder
R4-18 Do Not Pass on Shoulder sign from the MUTCD 11th edition: 4 standard sizes (18" × 24", 24" × 30", 36" × 48", and 48" × 60"), with letter heights, border widths, and colors.
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Standard sizes
| Size | Road type | Border | Corner radius | LettersDO NOT PASS | LettersON | LettersSHOULDER |
|---|---|---|---|---|---|---|
| 18" × 24" | — | 5/8" | 1 1/2" | 3"FHWA Series C | 3"FHWA Series C | 3"FHWA Series B |
| 24" × 30" | Conventional Road, Single LaneConventional Road, Multi-Lane | 5/8" | 1 1/2" | 4"FHWA Series C | 4"FHWA Series C | 4"FHWA Series B |
| 36" × 48" | Expressway | 7/8" | 2 1/4" | 6"FHWA Series C | 6"FHWA Series C | 6"FHWA Series B |
| 48" × 60" | Freeway | 1 1/4" | 3" | 8"FHWA Series C | 7"FHWA Series C | 7"FHWA Series C |
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Colors
- Legend
- Black
- Background
- White
- Border
- Black
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Standard reference
- SHS 2024 sheet 2-186 (R4-18, 18 x 24); MUTCD 11th ed. Table 2B-1
- SHS 2024 sheet 2-186 (R4-18, 24 x 30); MUTCD 11th ed. Table 2B-1
- SHS 2024 sheet 2-186 (R4-18, 36 x 48); MUTCD 11th ed. Table 2B-1
- SHS 2024 sheet 2-186 (R4-18, 48 x 60); MUTCD 11th ed. Table 2B-1
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