Road signs/Road Work Ahead Sign

Road Work Ahead Sign: what it means and what to do

Orange diamond sign reading ROAD WORK AHEAD

A road work ahead sign means workers or equipment are on or near the road ahead. Slow down and be ready for lane changes, lower limits and workers close to traffic.

Construction · MUTCD W20-1 · Checked October 8, 2026

What it looks like

An orange diamond with black ROAD WORK AHEAD lettering. Orange is the colour for construction and maintenance warnings.

What to do

  1. Slow down and follow the posted work-zone speed limit.
  2. Be ready for a lane closure, a detour, a flagger or uneven pavement.
  3. Keep a larger gap than normal, and do not tailgate. Sudden stops are common in work zones.

Quick check: Road Work Ahead Sign

Two questions to test what you just read.

Quick check 11 of 2

What does the road work ahead sign mean?

On the permit test

Tests ask what orange means (construction and maintenance) and how to drive through a work zone.

Where it shows up on state tests

3 questions across our state banks show this sign. Here is how many each bank has, and what each state's own test rules say about road signs.

StateQuestions showing itWhat the state says about signs
Arizona1No separate sign section published.
Virginia1Part one is 10 traffic-sign questions and you must answer all 10 correctly before part two opens.
Washington1No separate sign section published.

How it differs from similar signs

SignHow to recognise itWhat it means
Road Work Ahead SignOrange diamond sign reading ROAD WORK AHEADA road work ahead sign means workers or equipment are on or near the road ahead.
Speed Limit SignWhite rectangular SPEED LIMIT 55 signA speed limit sign shows the maximum legal speed for that stretch of road under ideal conditions.
Merge SignYellow diamond warning sign showing a lane merging into the main roadA merge sign means traffic from another road or ramp may merge into your lane ahead.
Two-Way Traffic SignYellow diamond warning sign with one arrow pointing up and one pointing downA two-way traffic sign means a one-way street or roadway ends ahead and you will then share the road with oncoming traffic.

See them side by side

Common questions

Orange. Orange diamonds warn of construction and maintenance work, while ordinary warning signs are yellow.

Slow down, obey the work-zone limit and be ready for lane changes, workers or flaggers.

All road signs Practice your state’s permit test free

Sources, checked 2026-10-08: Pennsylvania Driver's Manual (PUB 95), Chapter 2: Signals, Signs and Pavement Markings; New Jersey Driver Manual (rev. 09/25); Manual on Uniform Traffic Control Devices (FHWA). Written in our own words; follow your state’s manual for the exact wording.