Temporary · Rectangle · MUTCD 11th edition
W21-4 Slow Moving Vehicle
W21-4 Slow Moving Vehicle sign from the MUTCD 11th edition: standard size (36" × 18"), with letter heights, border widths, and colors.
01
Standard sizes
| Size | Road type | Border | Corner radius | LettersSLOW MOVING VEHICLE |
|---|---|---|---|---|
| 36" × 18" | Conventional Road, Single LaneConventional Road, Multi-Lane | 5/8" | 1 1/2" | 4"FHWA Series C |
02
Colors
- Legend
- Black
- Background
- Orange
- Border
- Black
03
Standard reference
- SHS 2024 sheet 5-37 (W21-4, 36 x 18); MUTCD 11th ed. Table 6F-1
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