This research examined the safety and operational benefits of having traffic merge early into the open lane prior to a work zone merge area. A 2007 law in Oklahoma adopted the use of additional “STATE … [Read more...] about Evaluation of Early Merge Static Work Zone Signing in Oklahoma
Parts of Roads
Studies to Improve Temporary Traffic Control at Urban Freeway Interchanges and Pavement Marking Material Selection in Work Zones
This report describes the methodology and results of analyses performed to develop guidelines on (1) how to improve temporary traffic control at work zones in and near urban freeway interchanges, and … [Read more...] about Studies to Improve Temporary Traffic Control at Urban Freeway Interchanges and Pavement Marking Material Selection in Work Zones
BarrierGate®
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
Roadside Design Guide, 4th Edition
The Roadside Design Guide presents a synthesis of current information and operating practices related to roadside safety and is written in dual units–metric and U.S. Customary. The 2011 edition of the … [Read more...] about Roadside Design Guide, 4th Edition
Triton Barrier
The Triton Barrier(R) is a steel-reinforced, water-filled portable barrier made of polyethylene plastic. This crashworthy work zone barrier shields crews and prevents vehicle penetration into the work … [Read more...] about Triton Barrier