Mn/DOT has installed one NCHRP Report 350 approved 70 mph attenuator (FASTRACC). Mn/DOT requires the use of NCHRP Report 350 approved TL-3 attenuators on highways. … [Read more...] about Installation of 70 mph attenuators
Temporary rumble strips
WSDOT has been interested over the past few years in temporary rumble strips, and has tried a few different types without much luck. The most recent product evaluated has been a temporary rumble … [Read more...] about Temporary rumble strips
Temporary Movable (“Zipper”) Barrier systems in work zones
Ohio has had one project where the movable concrete barrier was used. See the given website for plan sheets with plan notes and other plan details. … [Read more...] about Temporary Movable (“Zipper”) Barrier systems in work zones
Vehicle warning lights
Maine requires vehicles engaged in snow removal or sanding operations on a public way to be equipped with and display at least two auxiliary lights mounted at the highest practical point on the … [Read more...] about Vehicle warning lights
Vehicle warning lights
All construction vehicles need an amber strobe or beacon light that can be seen 360 degrees for 3000 feet. … [Read more...] about Vehicle warning lights
Salvaged and/or re-galvanized guardrail on construction projects
Alabama allows the use of salvaged guardrail as indicated on plans for guardrail reset. -Under what circumstances will the state agency authorize its use? Guardrail to be salvaged will be indicated … [Read more...] about Salvaged and/or re-galvanized guardrail on construction projects