- Client: The Public Transport Authority of Western Australia (PTA WA)
- Metronet Sustainability Strategy
- Date: October 2019
Public Transport Authority is the primary supplier of public transport services in Western Australia. The Perth Metronet is a large infrastructure programme delivering new railway routes, stations and adjacent communities. Metronet Sustainability Strategy outlines a number of initiatives that may be supported with eTool software. Some Metronet projects will also be pursuing ISCA and Green Star ratings.
Metronet holds a licence with eTool and has been using eTool internally for preliminary design modelling on some projects. Cerclos have been working closely with Metronet to ensure that key reporting requirements are deliverable with eTool.Â
Cerclos and Metronet have agreed that contractors with existing eTool Specialist subscriptions may access and edit Metronet models without additional licensing fees to Metronet, the aim being that Metronet is able to efficiently and quantifiably monitor the environmental design performance (eg Global Warming Potential ) of large parts of the programme within eTool. LCA is particularly suited to Metronet’s broad asset class responsibility spans rail, road and precinct development (buildings).
The components of the Metronet Sustainability Strategy that eTool help in delivering are outlined below:
- Environment: Energy and Carbon:
- Greenhouse gas emissions are assessed for transport infrastructure projects, commencing in business case development and ongoing throughout design
- Suitable initiatives to improve greenhouse gas emissions are identified and implemented, including as part of business case valuation.
- Economy: Resource Efficiency (Integrated Life Cycle Assessment)
- A life cycle assessment (LCA) method considering energy, water and materials use is integrated with the design process for projects. The process is commenced during project planning and reviewed at key design milestones to inform good decision making
- Key design decisions impacting on the LCA and the resource footprint (energy, water and materials use) of projects are captured in a project design decision register.
- Economy: Resource Efficiency (Whole of Life Costs & Benefits)
- Whole of life cost savings for operations and maintenance are prioritised
- Energy efficiency opportunities are assessed by transport projects and viable reduction initiatives (payback less than 5 years) implemented in both design response and construction practice/methodology
- Feasible renewable energy technologies (payback period less than 5 years) are incorporated in station/facility design
The LCA modelling goal is to identify a maximum of improvement strategies to ensure the design team can consider their inclusion at the earliest opportunity.
- Concept design stage is the most critical LCA modelling as it has the most chance of influencing the design. Once the design progresses the inclusion of environmental improvement strategies will likely become more and more disruptive.
Results Summary
