Description
The Maidstone Tram Maintenance and Stabling Facility (TMF) is a rail infrastructure project delivered by the North Western Program Alliance (NWPA) to support Melbourne’s Next Generation Tram (NGT) fleet.
The project involved the design and construction of a new maintenance depot, stabling yards, and specialist operational facilities required to service and store trams. The scope also included off-site tram track enabling works (OSTTEW), enabling the facility to integrate with the existing Yarra Trams network, along with associated civil, electrical, and mechanical infrastructure.
The TMF provides critical long-term capacity for tram operations, maintenance, and network expansion, ensuring the network can accommodate the future NGT fleet and meet growing transport demand.
Acknowledgement
Suppliers:
- Western Sydney University
- Heidelberg Materials
- Holcim
- Lee Brothers
- Porous Lane
- Integrated Recycling
- Humes
- Infrabuild
Rating Highlights
| Category | Credits | Achievements |
| Energy and Carbon | Ene-1 | Achieved a 50.83% reduction in lifecycle GHG emissions from energy, demonstrating significant improvements in energy efficiency and operational performance. |
| Materials | Mat-1 | Achieved a 28.5% reduction in lifecycle GHG emissions from materials through the use of low-carbon materials and resource-efficient design. |
| Water | Wat-1 | Achieved a 36.61% reduction in lifecycle water use, reflecting strong water efficiency outcomes across the project. |
| Waste | Was-1 | Achieved 100% diversion of uncontaminated spoil from landfill, along with 92.51% diversion of inert and non-hazardous waste and 61.30% diversion of office waste. |
| Community Health, Well-being and Safety | Hea-1 | Improved community health and wellbeing outcomes through active transport infrastructure, support for local businesses, and skills development for the entry-level workforce |
| Heritage | Her-1 | Achieved the interpretation and enhancement of heritage values associated with the former Maribyrnong Migrant Hostel, preserving and celebrating the site’s historical significance. |
| Innovation | Inn-1 | Recognised with an Australian First for trialling a novel concrete mix incorporating 60% recycled aggregates enhanced through carbon injection, delivered in partnership with Western Sydney University. |
| Innovation | Inn-1 | Recognised with an Australian First for the use of Duratrack recycled plastic sleepers in light rail infrastructure, advancing circular economy outcomes in rail construction. |
Verified Innovations
| Name | Verification Date | Innovation Type | Description |
| Carbon Injected Concrete (with 60% recycled aggregates) | 20/05/2026 | Innovative Technology or Process
Australian First |
The Project developed and trialled an Australian-first concrete mix incorporating 60% recycled aggregates enhanced through carbon injection, in collaboration with Western Sydney University. This innovation enabled both material substitution and in-situ carbon sequestration, reducing reliance on virgin aggregates while lowering embodied carbon.
|
| Recycled Silt Socks | 20/05/2026 | Innovative Technology or Process
Australian First (12-month Ruling) |
The Project adopted recycled silt socks as an alternative erosion and sediment control measure during construction. These products, made from recycled materials, provide effective sediment containment while reducing waste compared to traditional solutions.
|
| Recycled Plastic Sleeper in Light Rail Infrastructure | 20/05/2026 | Innovative Technology or Process
Australian First |
Recycled plastic sleepers were trialled within sections of the tram track network as an alternative to traditional concrete sleepers. These sleepers utilise recycled plastic waste to deliver durable performance while reducing reliance on virgin materials and diverting waste from landfill.
|
| Recycled Plastic Noise Walls | 20/05/2026 | Innovative Technology or Process
Australian First (12-month Ruling) |
Traditional precast concrete noise walls were replaced with panels made from approximately 80% recycled plastic, delivering the required acoustic and durability performance. This innovation diverted substantial volumes of plastic waste from landfill while significantly reducing embodied carbon associated with conventional materials.
|
| High SCM in Tram Track Construction | 20/05/2026 | Market Transformation | The Project supported the development of a Yarra Trams engineering directive that permitted the use of concrete mixes with 25% supplementary cementitious materials (SCMs) in tram track construction. This directive addressed existing specification constraints and enabled broader adoption of lower‑carbon concrete within operational rail infrastructure.
|
| eMesh | 20/05/2026 | Innovative Technology or Process
Australian First (12-month Ruling) |
eMesh was used as a substitute for conventional steel reinforcement in selected concrete pavement applications. Made from 100% recycled polypropylene, the product reduced embodied carbon and improved constructability.
|
| iSupply | 20/05/2026 | Innovation Challenge (IC-8) | The Project utilised the following products/services listed on the iSupply directory:
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