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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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California Department of Transportation

Development of a Prototype Automated Cone Machine and a High Capacity Storage System Machine

The Advanced Highway Maintenance and Construction Technology Research Center has been developing robotic equipment and machinery for highway maintenance and construction operations. It is a … [Read more...] about Development of a Prototype Automated Cone Machine and a High Capacity Storage System Machine

California Sign Specifications

This manual provides the dimensions and layouts for the manufacture of traffic signs approved by Caltrans. … [Read more...] about California Sign Specifications

Standard Plans

The California State Department of Transportation's Standard Plans is to be used in conjunction with the  the Department's Standard Specifications. It includes plan details for portable concrete … [Read more...] about Standard Plans

Construction Manual

Caltrans intends that this manual be used as a resource to provide procedural guidance for personnel engaged in contract administration. This manual is a guide, not a compilation of mandatory … [Read more...] about Construction Manual

Report on Emergency Access Openings in Soundwalls and Concrete Median Barriers

House Resolution No. 15, adopted March 30, 1991, requested that the Department of Transportation (Caltrans) conduct a study to determine the need and consider standards for installing removable … [Read more...] about Report on Emergency Access Openings in Soundwalls and Concrete Median Barriers

Flagging Instruction Handbook

This handbook covers the following topics: Flagger Basics; Flagger Stations; Flagging Equipment; FLAGGER PROCEDURES; and Urgent Situations. … [Read more...] about Flagging Instruction Handbook

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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