• In the world of road network construction, finding materials that are robust enough to cope with larger volumes of traffic and heavier vehicles is vital. Our roads need to perform for many years without cracking,…

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  • In the quest for innovative practices that might be applied in WA, three exciting research areas were explored for potential larger scale investigations. Solar pavements, although highly suitable for our sunny WA and with promising…

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  • As part of Main Roads WA efforts for continuous improvement, internal and external engagement with industry professionals reviewed current Main Roads WA supplement to the Austroads Guide to Pavement Technology. In response to issues raised,…

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  • Building on research conducted over the course of 35 years, our WARRIP team investigated pavements that have outperformed their design life. These sections built on Tonkin, Reid and Kwinana Freeways are proving that the materials…

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  • Advances in technology now make it possible to collect information about the condition of our roads at speed. The Traffic Speed Deflectometer (TSD) is equipped with doppler lasers, GPS, cameras, temperature probes and 3D sensors;…

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  • WARRIP investigated the use of hydrated cement treated crushed rock base (HCTCRB). Our first look at this material showed that it was performing adequately with no cause for concern on the trial sections observed. We…

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  • In order to apply standards published in the Austroads Guides to Western Australia, Main Roads WA has developed Engineering Road Notes that supplement the application of those guides in WA. When designing roads, engineers reference…

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  • Western Australia is a vast state with a varied climate. This project attempts to expand our thinking towards actual pavement temperatures when catering for heat. Getting a better picture of what kind of temperatures pavements…

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  • Warm mix asphalt technology enables us to lay asphalt at lower temperatures. This means lower emissions, lower energy costs, safer working environments, the ability to transport asphalt further, and a longer construction season. WARRIP reviewed…

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  • The global drive towards reusing and recycling continues to inspire efforts towards making the most of existing resources. One effective option currently reclaims asphalt from construction and demolition projects for use in new construction. Main…

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  • In order to apply standards published in the Austroads Guides to Western Australia, Main Roads WA has developed Engineering Road Notes that supplement the application of those guides in WA. When designing roads, engineers reference…

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  • ARRB, Main Roads Western Australia, WALGA, Curtin University and the University of WA developed the concept for a Western Australian Pavement Asset Research Centre (WAPARC). The purpose of the centre was two-fold.  The first objective…

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  • Stone Mastic Asphalt has long been used in WA due the strength and rigidity of its interlocking stone-on-stone skeleton. WARRIP undertook a review of current practices against standards across Germany and Australia to see if…

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  • The responsible and sustainable practice of recycling tyres for use in road construction, has been in place for over 30 years in WA. WARRIP sought to apply the latest research to see if there was…

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  • Full depth asphalt pavements are designed to have little flexibility and can suffer from fatigue damage. The main factors contributing to fatigue damage are design parameters, climate (temperature), and traffic speed. Balancing these factors and…

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  • Main Roads WA has embraced and led in the development and application of sound asset management processes over many years. With the introduction of new data collection technology, and recently published Austroads research outcomes on…

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  • With the heavy vehicle industry requesting that bigger, heavier trucks be allowed on WA roads it is essential that the implications of these vehicles on our roads be understood. Austroads caters for perfect world conditions…

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  • To provide safer roads, Main Roads WA needs to be able to identify and prioritise road safety projects. The Australian National Risk Assessment Model (ANRAM) provides enhanced fatality and serious injury estimates for road sections.…

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  • Adequate compaction at every stage of construction ensures we achieve stronger roads and the layers themselves will able to withstand the destructive erosive forces of water. Each type of material and each layer of construction…

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  • Following on the WARRIP project Towards Best Practice Asset Management, there is a need to determine how Main Roads WA can best implement the recommendations in conjunction with the data that is being collected across…

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  • ARRB’s new TSD has been upgraded to achieve ‘game changing’ fast and efficient measurements of the condition of our roads. To fully understand the information produced by the TSD, two sites will be established with…

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