Warning · Diamond · MUTCD 11th edition
W1-4c Reverse Curve (3 Lanes)
W1-4c Reverse Curve (3 Lanes) sign from the MUTCD 11th edition: 3 standard sizes (30" × 30", 36" × 36", and 48" × 48"), with border widths and colors.
01
Standard sizes
| Size | Road type | Border | Corner radius |
|---|---|---|---|
| 30" × 30" | Conventional Road, Single LaneConventional Road, Multi-Lane | 3/4" | 1 7/8" |
| 36" × 36" | Expressway | 7/8" | 2 1/4" |
| 48" × 48" | Freeway | 1 1/4" | 3" |
02
Colors
- Legend
- Black
- Background
- Yellow
- Border
- Black
03
Standard reference
- SHS 2024 sheet 5-14 (W1-4c, 30 in); MUTCD 11th ed.
- SHS 2024 sheet 5-14 (W1-4c, 36 in); MUTCD 11th ed.
- SHS 2024 sheet 5-14 (W1-4c, 48 in); MUTCD 11th ed.
04
