Temporary · Diamond · MUTCD 11th edition

W20-1b Path Work Ahead

W20-1b Path Work Ahead sign from the MUTCD 11th edition: 2 standard sizes (30" × 30" and 36" × 36"), with letter heights, border widths, and colors.

W20-1b
Drawn at 30" × 30"

01

Standard sizes

SizeRoad typeBorderCorner radiusLettersPATH WORK AHEAD
30" × 30"Conventional Road, Single LaneConventional Road, Multi-Lane3/4"1 7/8"4"FHWA Series D
36" × 36"Expressway7/8"2 1/4"5"FHWA Series D

02

Colors

Legend
Black
Background
Orange
Border
Black

03

Standard reference

  • SHS 2024 sheet 5-21 (W20-1b, 30 in); MUTCD 11th ed. Table 6F-1
  • SHS 2024 sheet 5-21 (W20-1b, 36 in); MUTCD 11th ed. Table 6F-1