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Western Harbour Tunnel Stage 2
Project Overview Western Harbour Tunnel is delivering enduring quadruple-bottom-line benefits, setting a benchmark within transport infrastructure. The project’s environmental footprint was reduced significantly – with a 35% reduction in lifecycle material impacts and eliminating 900,000 m³ of dredging in Sydney Harbour – while strengthening community outcomes through the early revitalisation of 1.9 hectares of public
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ecologiQ
The ecologiQ program has delivered substantial benefits across Victoria’s infrastructure sector, recycling industries, government, and the wider community. It has furthered the transition to a circular economy, beginning with 2 of 4transport infrastructure project teams, who through Recycled First implementation can confidently adopt recycled and reused materials in design and construction. These resources have strengthened
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Case Study – Mutu circular platform active across Dempsey Wood
Background Dempsey Wood (an ISC member since 2017) is one of New Zealand’s leading civil contractors, with more than 500 staff working across infrastructure, earthworks and land development projects nationwide. Alongside its technical delivery, Dempsey Wood has built a strong sustainability focus, actively looking for ways to reduce waste and improve how resources are used
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Metro Trains Melbourne: Governance driving sustainability at scale
Metro Trains Melbourne (Metro) has demonstrated how strong governance can accelerate sustainability outcomes across a complex operational rail network. Through the Melbourne Metropolitan Refranchising (MR4) contract, Metro established a robust Environmental Sustainability Management Plan (ESMP) and supporting Environment Strategy that embedded sustainability into business planning, operational decision-making and continuous improvement. The governance framework enabled Metro
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Te Ara Tupua Horo Rangi: Protecting Infrastructure, Restoring Nature
Te Ara Tupua Horo Rangi is a landmark transport resilience project on the edge of Te Whanganui-a-Tara (Wellington Harbour), delivered by NZ Transport Agency Waka Kotahi (NZTA) in partnership with mana whenua—Taranaki Whānui ki te Ūpoko o te Ika and Ngāti Toa Rangatira—and Alliance partners Tonkin + Taylor, Downer and HEB. The project will provide
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M80 Ring Road Alliance (ACCIONA, MACA and AECOM) delivering the M80 Ring Road Completion
Overview The M80 Ring Road Completion (M80RRC) is one of Victoria’s most significant infrastructure projects, and a criticalcomponent of North East Link (NEL). Since its inception, the Project’s aspiration has been to transform lives and communities, not only by creatingexceptional infrastructure, but by empowering people to realise their potential. The M80RRC has designed and implemented
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Western Sydney Airport Landside Civil and Buildings Package AeroWest Joint Venture (Seymour Whyte and BMD)
Overview As part of the AeroWest Joint Venture, Seymour Whyte and BMD delivered the Landside Civil and Building (LCB)Works package for the Western Sydney International Airport (WSI). Through a disciplined governance approach, the project delivered 33.62% operational energy savings (3,272.77tCO₂‑e), a 33% reduction in embodied carbon (37,110.39 tCO₂‑e), a 79% reduction in total water use
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Fitzroy to Gladstone Pipeline (Gladstone Area Water Board and McConnell Dowell BMD Joint Venture)
Overview The $983 million Fitzroy to Gladstone Pipeline (FGP) secures long-term water security for the Gladstone region andprotects the region’s industrial economy. Gladstone is one of Australia’s most significant industrial hubs, home to major alumina refineries, aluminiumsmelting, cement manufacturing, coal export terminals and LNG operations. These industries generate more than$6 billion in gross regional product
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METRONET Morley-Ellenbrook Line project, delivered by the MELconnx Alliance, a partnership between the Public Transport Authority (PTA) of Western Australia and Laing O’Rourke.
Overview: MELconnx delivered this city-shaping 21-km METRONET Morley–Ellenbrook Line by embedding sustainability at the heart of every decision. From the outset, the alliance was set up with a deliberate focus on collaboration and sustainability, a focus shared by the client and design teams and championed by engineers and construction managers throughout delivery. Governance processes and
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Perth Airport’s Low Carbon Runway Pavement
Overview: Perth Airport’s new runway represents a breakthrough in sustainable aviation infrastructure. The Low Carbon Runway Pavement estimates an 18% reduction in total lifecycle emissions over 100 years, proving that high-performance aviation infrastructure and environmental responsibility are mutually achievable. The innovation replaces traditional cement-treated crushed rock (CTCR) with a Foamed Bitumen Stabilised Base (FBB) system.
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Metro Tunnel Project: Sustainability – Targets and Governance
Context/Background Sustainability was a key consideration in the planning, design and construction of the Metro Tunnel project aiming to ensure the project left lasting economic, environmental and social benefits. Delivering the project with sustainability in mind is about making sure that we meet our needs today, while protecting the opportunity for future generations to meet
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Case Study: SiteHive – How real-time environmental monitoring is supporting smarter infrastructure delivery
Overview SiteHive technology was deployed on a major transport project in New Zealand to help manage: Construction noise Vibration Environmental compliance Community impact The Challenge Operating near homes, businesses, and schools while maintaining compliance in a high-traffic urban environment. The Innovation SiteHive’s environmental monitoring platform enabled: Real-time noise, dust & vibration monitoring AI-powered noise source
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