Workzone Barriers
Workzone Barriers also known as Temporary Barriers or Portable Barriers are designed to shield worksites located adjacent to roadways. Workzone Barriers are used as part of the traffic management plan to protect roadside workers and guide motorists through the construction zone. Workzone Barriers are typically classified as plastic, steel or concrete and are designed for rapid deployment and removal.
Workzone barriers are a longitudinal safety barrier system comprising a length-of-need section and end terminal. The designer should consider the road pavement type, clearance between the barrier and workzone and the posted speed through the construction area when selecting the most appropriate workzone safety barrier system.
TALL42 is a freestanding, movable concrete barrier system designed to be used with a transfer machine that can reposition the barrier, altering the traffic lane configuration.
The DeltaBloc designs feature a unique tension bar and coupling system providing lateral support during a vehicle collision
SafeZone is a smooth faced temporary barrier system, anchored to asphalt or concrete pavement in verge or median applications.
Lo-Ro is a water-filled plastic safety barrier system designed for low-speed environments typically encountered on local roadways.
Featuring water filled elements and tension straps to absorb vehicle impact energy, the ABSORB-M does not require ground anchors.
QUASH is a high performance non-redirective, gating crash cushion designed to shield the blunt end of the TALL42 movable concrete barrier.
Frequently Asked Questions
What is a workzone barrier?
A workzone crash barrier is a temporary roadside safety system designed to protect road workers, motorists, and pedestrians during construction, maintenance, or temporary traffic works. These barriers are engineered to contain and redirect errant vehicles while minimising injury risk.
How do workzone barriers differ from permanent barriers?
Portable crash barriers are temporary, relocatable systems that can be quickly installed, repositioned, or removed as work progresses. Unlike permanent barriers, they typically require no excavation or foundations and are optimised for short-term or staged projects.
What should I consider when selecting an appropriate workzone barrier?
Barrier selection depends on factors such as speed environment, available space behind the barrier, ground conditions, deployment duration, and crash test compliance.
What are the different types of workzone barriers?
Workzone barriers are typically classified as concrete, steel or water-filled plastic.
Can I mix different barrier types together?
Due to the differences in system stiffness connection between different barrier types may only be undertaken following consultation with the product supplier.
How are workzone barriers evaluated?
Workzone or temporary barriers are full-scale crash tested to assess compliance with Australian and International Standards. The Manual for Assessing Safety Hardware (MASH) is the basis of crash testing nominated by AS/NZS 3845.1 and is the recommended crash test standard nominated by the Austroads Safety Barrier Assessment Panel (ASBAP). MASH provides guidelines for the barrier configuration, vehicle type, vehicle speed and impact angle.
What is an anti-gawk screen?
An anti-gawk screen is secured to the top of the workzone barrier. Screens may be manufactured from wire mesh or solid infill panels.
What is the purpose of anti-gawk screens?
Anti-gawk screens are used to restrict dust and debris from exiting the construction site and to reduce visibility into the construction site and prevent driver distraction.
Do workzone barrier elements need to be pinned together?
Yes. in order to develop the lateral strength required to contain and redirect errant vehicles, workzone barrier elements must be pinned together.
How do I terminate the end of a workzone barrier?
If the blunt end of the workzone barrier system can be impacted by an errant vehicle then an appropriate MASH compliant crash cushion is to be installed.
