Over the years, Australia has adopted a range of barrier systems designed to minimise the impact of accidents and enhance overall road safety. Here are some common types of roadside barriers used:
W-beam Guardrails: W-beam guardrails are among the most common types of roadside barriers. They consist of a series of corrugated metal beams that are connected to upright posts. These barriers are effective in redirecting or containing vehicles during a collision.
Wire Rope Barriers: Wire rope barriers, also known as cable barriers, are made of high-tension steel cables supported by posts. These barriers are designed to absorb and deflect the energy of a colliding vehicle, reducing the severity of the impact.
Concrete Barriers: Concrete barriers are sturdy and provide a strong physical barrier between the road and potential hazards. They come in various shapes and sizes, including Jersey barriers and F-shape barriers, and are often used in medians and high-traffic areas.
Guardrail End Treatments: Specialised end treatments are applied to guardrails to enhance safety. These may include energy-absorbing materials or redirective features to mitigate the risk of severe accidents, especially at the ends of long barriers.
Crash Cushions: Crash cushions are designed to absorb the impact energy of a colliding vehicle, minimising the risk of injury. They are often installed at the end of rigid barriers or other fixed structures.
Truck Mounted Attenuators (TMAs): TMAs are mobile crash cushions mounted on trucks. They are strategically positioned in work zones to protect workers and minimise the impact on vehicles that may accidentally enter the construction area.
Hybrid Barrier Systems: Combining features of different barrier types, hybrid systems aim to optimise safety by offering a tailored solution for specific road conditions.
These various types of roadside barriers in Australia reflect the country's commitment to implementing diverse and effective safety measures to reduce the severity of accidents and enhance overall road safety. The selection of a specific barrier type depends on factors such as road design, traffic conditions, and the surrounding environment.