Regulatory · Rectangle · MUTCD 11th edition
R4-8 Keep Left
R4-8 Keep Left sign from the MUTCD 11th edition: 4 standard sizes (18" × 24", 24" × 30", 36" × 48", and 48" × 60"), with border widths and colors.
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Standard sizes
| Size | Road type | Border | Corner radius |
|---|---|---|---|
| 18" × 24" | — | 5/8" | 1 1/2" |
| 24" × 30" | — | 5/8" | 1 1/2" |
| 36" × 48" | Expressway | 7/8" | 2 1/4" |
| 48" × 60" | Freeway | 1 1/4" | 3" |
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Colors
- Legend
- Black
- Background
- White
- Border
- Black
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Standard reference
- SHS 2024 sheet 2-175 (R4-8, 18x24 in); MUTCD 11th ed.
- SHS 2024 sheet 2-175 (R4-8, 24x30 in); MUTCD 11th ed.
- SHS 2024 sheet 2-175 (R4-8, 36x48 in); MUTCD 11th ed.
- SHS 2024 sheet 2-175 (R4-8, 48x60 in); MUTCD 11th ed.
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