An important design decision in construction work zones concerns the use and placement of temporary barriers. The temporary concrete safety shaped barrier is the option preferred by most state … [Read more...] about Placement Guidance for Temporary Concrete Barriers in Construction Work Zones: Developed with Roadside Safety Analysis
Temporary Concrete Barriers
Development of an NCHRP Report 350 TL-3 New Jersey Shape 50-Inch Portable Concrete Barrier
For roadside work-zones in areas that have opposing traffic flow, safety is enhanced if the temporary barriers incorporate a glare-shield that blocks headlight glare from oncoming traffic. … [Read more...] about Development of an NCHRP Report 350 TL-3 New Jersey Shape 50-Inch Portable Concrete Barrier
Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices
Montana uses a top-mounted delineator that is 108mm wide by 89mm tall, using the recommended manufacturer specifications for an adhesive to fasten these to the top of the rail every 9.15 meters. … [Read more...] about Top-mounted object markers for delineation of portable concrete barrier wall on highway projects or alternative devices
Temporary Movable (“Zipper”) Barrier systems in work zones
Illinois does not have a specification for temporary movable barrier systems. The state has used them successfully on a few specific projects. One project in particular, the rehabilitation of the … [Read more...] about Temporary Movable (“Zipper”) Barrier systems in work zones
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
Temporary Movable (“Zipper”) Barrier systems in work zones
WSDOT owns a couple of the movable barrier systems and has used them primarily on interstate freeway HOV widening projects over the past several years. They work well in adding an additional level of … [Read more...] about Temporary Movable (“Zipper”) Barrier systems in work zones