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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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Traffic Signs

Maintenance of Signs and Sign Supports: A Guide for Local Highway and Street Maintenance Personnel

Highway signs are the means by which the road agency communicates the rules, warnings, guidance and other highway information that drivers need to navigate their roads and streets. This guide, which … [Read more...] about Maintenance of Signs and Sign Supports: A Guide for Local Highway and Street Maintenance Personnel

Sign Policy

The Oregon Department of Transportation provides and maintains signs on the state highway system including: Directional Regulatory Warning Informational ODOT's Sign Policy … [Read more...] about Sign Policy

Iowa DOT Standard Road Plans

The standard road plans contained in this manual (commonly referred to as the "Red Book") have been developed to show standardized design features, construction methods and approved materials to be … [Read more...] about Iowa DOT Standard Road Plans

2021 Standard Drawings

Standard Drawings are a complete set of drawings, available for both English and Metric versions. Section 600 is for Incidental Construction and Section 800 is for Traffic Control Devices & … [Read more...] about 2021 Standard Drawings

Switched from Construction/Engineering Grade sheeting to High-Intensity sheeting for barrels and barricades

Hawaii DOT has been specifying high-intensity retroreflective sheeting on all of its barricades since the standard specifications were introduced in 1994. Traffic barrels are specified using the same … [Read more...] about Switched from Construction/Engineering Grade sheeting to High-Intensity sheeting for barrels and barricades

Switched from Construction/Engineering Grade sheeting to High-Intensity sheeting for barrels and barricades

See California's AUTHORIZED MATERIAL LIST FOR SIGNING AND DELINEATION MATERIALS for retroreflective sheeting for channelizers, barrier markers, delineators, cone sleeves, and drums on the web site … [Read more...] about Switched from Construction/Engineering Grade sheeting to High-Intensity sheeting for barrels and barricades

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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