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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 Signals

Traffic And Safety Manual

Originally published in 2001, many chapters have been updated since then. The Traffic and Safety Manual is intended to provide guidelines or information on how a certain activity related to traffic … [Read more...] about Traffic And Safety Manual

Equipment and Material Standards of the Institute of Transportation Engineers

The Equipment and Material Standards includes standards on signals, markings, and traffic controls for street & highway construction, maintenance, utility, & emergency operations such as … [Read more...] about Equipment and Material Standards of the Institute of Transportation Engineers

Portable Traffic Lights Make Work Zone Traffic Safer

North Carolina has used solar powered portable traffic lights in place of flaggers for a roadway construction project in Raleigh. Instead of three flagmen, there is one light operator who watches the … [Read more...] about Portable Traffic Lights Make Work Zone Traffic Safer

Guidelines for the Use of Portable Traffic Signals in Rural Two-Lane Maintenance Operations

The purpose of this report is to provide guidelines for the application of portable traffic signals in short-term, routine maintenance projects on rural two-lane highways in Texas. This guidebook … [Read more...] about Guidelines for the Use of Portable Traffic Signals in Rural Two-Lane Maintenance Operations

The SQ2 System

… [Read more...] about The SQ2 System

Portable Traffic Signals

… [Read more...] about Portable Traffic Signals

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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