NCDOT uses movable barrier quite extensively in its work zones, mostly on interstate rehabilitation projects. The barrier system was used on I-95 to close one lane Monday thru Thursday and open it up … [Read more...] about Temporary Movable (“Zipper”) Barrier systems in work zones
Temporary Concrete Barriers
Temporary Movable (“Zipper”) Barrier systems in work zones
Michigan has used the movable barrier wall on 4 or 5 projects in work zones. The state has used these on freeways where traffic is switched from one side of the road to the other. The zipper wall is … [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
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
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
Conditions for using temporary concrete barriers
In Indiana, temporary concrete barriers are used under following conditions: bridge work, excessive dropoff areas, and to separate traffic when traffic is two-way on the same side of interstate … [Read more...] about Conditions for using temporary concrete barriers