Driver's License Test Prep
Orange diamond with black border showing a black silhouette of a worker digging with a shovel.
MUTCD
CW21-1
Category
work zone
Color
orange
Shape
diamond
National · MUTCD Sign Reference

Workers (Symbol)

Highway workers are on or near the roadway ahead; slow down and stay alert.

Construction or maintenance workers are present on or alongside the road ahead. Drivers should reduce speed, increase following distance, watch for workers and equipment entering the travel lanes, and be prepared to stop if directed.

In the same family

Related signs

Vertical red-and-orange panel. Red top half with white text NO STANDING ANYTIME and a white double-headed horizontal arrow. Bottom orange band with black hard-hat icon and TEMPORARY CONSTRUCTION REGULATION. Code SP-383B.
No Standing Anytime: Temporary Construction Regulation
Vertical red-and-orange panel. Red top half with white text NO STANDING ANYTIME and a white horizontal arrow pointing left. Bottom orange band with hard-hat icon and TEMPORARY CONSTRUCTION REGULATION text.
No Standing Anytime: Construction (Arrow Left)
Vertical red-and-orange panel. Red top half with white text NO STANDING ANYTIME and a white horizontal arrow pointing right. Bottom orange band with hard-hat icon and TEMPORARY CONSTRUCTION REGULATION text.
No Standing Anytime: Construction (Arrow Right)
Orange diamond with black border reading CHECK POINT AHEAD on three lines in black uppercase letters.
Check Point Ahead
Orange diamond with black border reading SOBRIETY CHECK POINT AHEAD on three lines in black uppercase letters.
Sobriety Check Point Ahead
Source

Wikimedia Commons: File:MUTCD CW21-1 (Proposed alternate variant).svg (Public domain)

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