Flagger ahead

What it means

This sign warns that a person with a flag controls traffic through the work zone ahead, and it changes the chain of command on the road: the flagger's instructions override signs and signals for the duration. Flaggers are used where lane closures, pilot cars or short alternating one-way flows cannot be managed by markings alone. They hold a paddle or flag and use standard positions to order stops and releases. A flagger is a human being standing in live traffic, which is one more reason the reduced speeds in work zones exist.

How it gets misread

Drivers sometimes treat the flagger as advisory, holding only when it suits them, or assume that a lowered paddle means the closure is over. Another misread is watching the flagger and forgetting the queue of vehicles behind you.

What to do

Slow as you approach and obey the flagger's signals exactly as displayed, stopping where indicated and not creeping forward while held. When released, move through the controlled section steadily without stopping for photos or to look at the work. Expect the instructions to differ from what the static signs alone would suggest; the flagger sees the whole work zone and you do not.

Practise this rule

• Work Zones: Driving Past Workers Safely | CO

  You enter a work zone where workers are standing beside the travel lane and the lanes have been narrowed. How should you drive?

More work zone signs

• Road work ahead →
• Lane closed ahead →

Browse all road signs