In Progress

With climate change expected to have increasing impact on weather patterns, it is becoming difficult to assess the general vulnerable of the Western Australian state road network to extreme weather events. This project will build…

Roundabouts are a commonly adopted intersection treatment in Western Australia due to their road safety benefits (i.e. low speeds and improved impact angles). To achieve the desired safety improvements offered by a roundabout, speeds are…

Excavating test pits and/or drill coring to confirm the material profile and layer thicknesses is an important step in pavement evaluation preceding detailed rehabilitation design. However, these investigation techniques are destructive to the pavement, expensive,…

In Western Australia, full-depth asphalt (FDA) pavements are provisioned primarily in metropolitan heavy traffic volume/load applications. Recent observations by Main Roads suggest these pavements may be subject to premature deterioration due to moisture ingress. While…

End-of-life rubber from vehicle tyres and industrial functions has the potential to be recycled in crumb rubber modified (CRM) binder technology for road building applications, such as sprayed bituminous seals and asphalt wearing courses. The…

Maintaining Western Australia’s vast road network to provide a consistent level of service is a complex and costly exercise. Depending on several factors not limited to design, materials, construction, traffic and environment, pavements will consume…

Granular materials used in the design and construction of pavement base and subbase layers are often assessed for suitability based on the California Bearing Ratio (CBR) value. This measure provides an indication of the load…

Current waste management challenges across the world have required governments to develop innovative policies that target the implementation of single-use materials throughout the economy. Sustainable materials and construction practices are the future of road infrastructure…

Every year over a hundred lives are lost on West Australian roads. While any death on the road is unacceptable, the State Government is committed to substantially reducing this toll. As a result, the Government…

The Western Australian road network still contains many timber bridges comprising Jarrah and Wandoo piles that have been in operation for more than 60 years. Despite their age, these structures are typically sound apart from…