Shoulder Work Sign
Workers and equipment on shoulder of road
In short: A Shoulder Work sign warns that workers and equipment are on or near the shoulder ahead. Slow down, and move one lane away from the shoulder when it is safe — workers or machinery may enter the roadway. Fines are often doubled in work zones.

What to do
Slow down and move away from shoulder if safe.
Tips
Watch for workers and equipment entering roadway.
Test yourself
You see this sign while driving. What do you have to do?
Show the answer
Slow down and move away from shoulder if safe.
How to recognize this sign
Also searched as shoulder work ahead, shoulder work ahead meaning, or road work shoulder sign.
About construction signs
Construction and work-zone signs are orange with black symbols. They mark temporary conditions — lane shifts, flaggers, reduced speeds — and fines are often doubled in work zones. Test questions focus on how to respond safely around workers and equipment.
Practice the rule this sign carries

A 'Flagger Ahead' sign in a construction zone means:
- A. A flagger is ahead — follow their directions
- B. A warning flag marks the work zone edge
- C. The road is one lane ahead — traffic alternates
- D. Signals replace the flagger ahead
Show answer
A. A flagger is ahead — follow their directions — A 'Flagger Ahead' sign warns that a person controlling traffic (flagger) is at an upcoming point in the work zone. Reduce speed and be prepared to stop — flaggers have full legal authority to control traffic.
Universal rule · checked against MUTCD 11th Edition, Revision 1 (December 2025) — Section 6H.15 — Flagger Signs (W20-7 and W20-7a) · verified 2026-07-27
Frequently asked questions
What does the Shoulder Work Sign mean?
Workers and equipment on shoulder of road
What should you do at a Shoulder Work Sign?
Slow down and move away from shoulder if safe.
Reference standard: Federal Highway Administration Manual on Uniform Traffic Control Devices ↗. State and local agencies may add rules or operating times, so follow the complete posted sign where you drive. How DMV Prep sources content.
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