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Work Zone Safety Information Clearinghouse

Library of Resources to Improve Roadway Work Zone Safety for All Roadway Users

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Periods of the Day

Allowing work zone staging changes (making the changes of the work zone traffic control setup) at night on high-volume, urban freeways

Utah has no specific requirement as to when traffic control should be done, day or night. Most times it is left to the contractor's discretion when to make changes to traffic control. If there are … [Read more...] about Allowing work zone staging changes (making the changes of the work zone traffic control setup) at night on high-volume, urban freeways

Allowing work zone staging changes (making the changes of the work zone traffic control setup) at night on high-volume, urban freeways

In Nevada, depending on the location of the project, whether urban or rural, high speeds, high volumes, etc., the majority of work is done at night due to reduced traffic volumes. Changing the traffic … [Read more...] about Allowing work zone staging changes (making the changes of the work zone traffic control setup) at night on high-volume, urban freeways

Nighttime work restrictions and conditions

Some states have found an increase in the amount of work that must be done at night. Minnesota DOT made a commitment to improve the safety of construction work zones by implementing a team to make … [Read more...] about Nighttime work restrictions and conditions

Illumination Guidelines for Nighttime Highway Work

TRB's National Cooperative Highway Research Program (NCHRP) Report 498: Illumination Guidelines for Nighttime Highway Work provides guidelines for illumination for nighttime highway work, work zone … [Read more...] about Illumination Guidelines for Nighttime Highway Work

Nighttime Construction

This engineering instruction supersedes EI 91-004: Night-Time Construction Policy and it includes the following sections: superseded issuances, purpose, effective date, background, policy, factors … [Read more...] about Nighttime Construction

ESPOC Says

Tips from NAPA's Environmental, Safety and Plant Operations Committee on safe night paving. Advantages and disadvantages of night paving are listed along with hazard elimination steps. A checklist … [Read more...] about ESPOC Says

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Copyright © 2025 American Road & Transportation Builders Association (ARTBA). The National Work Zone Safety Information Clearinghouse is a project of the ARTBA Transportation Development Foundation. It is operated in cooperation with the U.S. Federal Highway Administration and Texas A&M Transportation Institute. | Copyright Statement · Privacy Policy · Disclaimer
American Road and Transportation Builders Association Transportation Development Foundation, American Road and Transportation Builders Association U.S. Department of Transportation Federal Highway Administration Texas A&M Transportation Institute