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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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Guardrails

Development of a Test Level 3 Transition Between Guardrail and Portable Concrete Barriers

Road construction often requires that work zones be created and shielded by portable concrete barriers (PCBs) to protect workers and equipment from errant vehicles as well as to prevent motorists from … [Read more...] about Development of a Test Level 3 Transition Between Guardrail and Portable Concrete Barriers

Testing and Evaluation of MASH TL-3 Transition Between Guardrail and Portable Concrete Barriers

Three full-scale vehicle crash tests were conducted according to the Manual for Assessing Safety Hardware (MASH) Test Level 3 (TL- 3) safety performance criteria on a transition between the Midwest … [Read more...] about Testing and Evaluation of MASH TL-3 Transition Between Guardrail and Portable Concrete Barriers

Development of a MASH TL-3 Transition Between Guardrail and Portable Concrete Barriers

Often, road construction causes the need to create a work zone. In these scenarios, portable concrete barriers (PCBs) are typically installed to shield workers and equipment from errant vehicles as … [Read more...] about Development of a MASH TL-3 Transition Between Guardrail and Portable Concrete Barriers

More Robust DOT Oversight of Guardrails and Other Roadside Hardware Could Further Enhance Safety

In 2014, 54 percent of traffic fatalities in the United States occurred as a result of a vehicle's leaving the roadway, according to U.S. Department of Transportation's (DOT) data. Roadside safety … [Read more...] about More Robust DOT Oversight of Guardrails and Other Roadside Hardware Could Further Enhance Safety

W-Beam Guardrail Repair and Maintenance

This document was prepared under the Rural Transportation Assistance Program Project 70 by the Technology Transfer Center, Iowa State University, Ames, Iowa, and disseminated under the sponsorship of … [Read more...] about W-Beam Guardrail Repair and Maintenance

Salvaged and/or re-galvanized guardrail on construction projects

New Hampshire allows the use of salvaged and/or re-galvanized guardrail in lieu of new guardrail. Under what circumstances will the state agency authorize its use? - Temporary guardrail. How does … [Read more...] about Salvaged and/or re-galvanized guardrail on construction projects

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