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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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Nighttime Lighting Guidelines for Work Zones Training Module

Roadway lighting eases the task of driving at night by illuminating the pavement to help drivers see the general direction of the roadway, aiding them in seeing structures alongside the roadway more … [Read more...] about Nighttime Lighting Guidelines for Work Zones Training Module

Nighttime Lighting Guidelines for Work Zones: A guide for developing a lighting plan for nighttime work zones

Many State Departments of Transportation (DOT) use some form of nighttime work zone to conduct construction and maintenance activities on or near the travel portion of the road system. Roadway … [Read more...] about Nighttime Lighting Guidelines for Work Zones: A guide for developing a lighting plan for nighttime work zones

Maintenance Work Zone Safety — Pocket Guide of MUTCD’s Guidance on Temporary Traffic Control / Seguridad en la zona de trabajo de mantenimiento – Guí­a de bolsillo sobre la orientación del MUTCD en relación con el control de tránsito temporal

Esta guí­a de 4 por 6 pulgadas provee información sobre los diagramas tí­picos que aplican a trabajos de corta duración y operaciones móviles de mantenimiento. La guí­a provee diagramas útiles e … [Read more...] about Maintenance Work Zone Safety — Pocket Guide of MUTCD’s Guidance on Temporary Traffic Control / Seguridad en la zona de trabajo de mantenimiento – Guí­a de bolsillo sobre la orientación del MUTCD en relación con el control de tránsito temporal

A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity

NCHRP Report 726 provides a Guidebook of nighttime construction best practices concerning 1) implementation of new or innovative ideas to convert necessary work activities to effective nighttime … [Read more...] about A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity

Statistical Test for 85th and 15th Percentile Speeds with Asymptotic Distribution of Sample Quantiles

The 85th and the 15th percentiles are two parameters that are commonly used in traffic engineering and traffic safety. For example, 85th percentile speeds are used in setting speed limits and for … [Read more...] about Statistical Test for 85th and 15th Percentile Speeds with Asymptotic Distribution of Sample Quantiles

Safety Evaluation of Sequential Warning Lights in Tapers at Nighttime Work Zones

Safety improvement at nighttime work zones is important because of visibility concerns after dark. The deployment of sequential lights is an innovative method to improve driver recognition of lane … [Read more...] about Safety Evaluation of Sequential Warning Lights in Tapers at Nighttime Work Zones

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Copyright © 2026 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