Work Zone Mobility and Safety Program
Photo collage: temporary lane closure, road marking installation, cone with mounted warning light, and drum separated work zones.
Office of Operations 21st Century Operations Using 21st Century Technologies

Night Work/Off Peak Work

two workers silhouetted in the beam of a work vehicle's headlights

High traffic volumes on many highways make it difficult to perform work zone operations in or near travel lanes during much of the day because of the disruption in traffic flow and the risk this introduces for the workers and the traveling public. As a result of these concerns, all kinds of highway work are increasingly scheduled for off-peak periods, particularly at night, to alleviate the problems associated with working in traffic.

Deciding When to Use Night Work

Work Zone Traffic Control and Operations at Night

Lighting and Visibility

Example Specifications for Nighttime Operations

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