Work zone devices and flaggers — Delaware Permit Test

Barricades, drums, cones and tubular markers guide drivers through work zones, and at night they are often fitted with flashing or steady lights.

A driver who expects cones to be dark at night may not see the line of drums until they are on it.

At night they are often equipped with flashing or steady burn lights for improved visibility.

Large flashing or sequencing arrow panels in work zones guide drivers into certain lanes and tell them part of the road ahead is closed.

A driver who ignores the arrow panel stays in a lane that ends at a wall of drums.

Large flashing or sequencing arrow panels may be used in work zones both day and night to guide drivers into certain traffic lanes and to inform them that part of the road or street ahead of them is closed.

Work zone flaggers wear yellow-green vests, shirts or jackets and use red flags or STOP/SLOW paddles to direct traffic.

A driver who does not know a flagger's paddle rolls past a worker who has just turned it to STOP.

Flaggers wear yellow-green vests, shirts, or jackets and use red flags or stop/slow paddles to direct traffic through work zones.

What are barricades, drums and cones often fitted with at night?

Flashing or steady lights. A driver who expects cones to be dark at night may not see the line of drums until they are on it. Delaware Driver Manual, p.80: “At night they are often equipped with flashing or steady burn lights for improved visibility.”