Regulatory · Rectangle · MUTCD 11th edition
R4-9 Stay in Lane
R4-9 Stay in Lane 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.
01
Standard sizes
| Size | Road type | Border | Corner radius | LettersSTAY IN LANE |
|---|---|---|---|---|
| 18" × 24" | — | 5/8" | 1 1/2" | 4"FHWA Series D |
| 24" × 30" | Conventional Road, Single LaneConventional Road, Multi-Lane | 5/8" | 1 1/2" | 5"FHWA Series D |
| 36" × 48" | Expressway | 7/8" | 2 1/4" | 7"FHWA Series D |
| 48" × 60" | Freeway | 1 1/4" | 3" | 10"FHWA Series D |
02
Colors
- Legend
- Black
- Background
- White
- Border
- Black
03
Standard reference
- SHS 2024 sheet 2-179 (R4-9, 18 x 24); MUTCD 11th ed. Table 2B-1
- SHS 2024 sheet 2-179 (R4-9, 24 x 30); MUTCD 11th ed. Table 2B-1
- SHS 2024 sheet 2-179 (R4-9, 36 x 48); MUTCD 11th ed. Table 2B-1
- SHS 2024 sheet 2-179 (R4-9, 48 x 60); MUTCD 11th ed. Table 2B-1