The METRONET Forrestfield-Airport Link will be an innovative and sustainable project. It will provide a solution for enhancing the connectivity, liveability and prosperity of Perth and its eastern suburbs including the airport. It is a journey to deliver a landmark transport project. – Our Sustainability Vision

The METRONET Forrestfield-Airport Link has extended the public transport network, which helps contribute to sustainable development by reducing vehicle use and improving the liveability, connectivity and amenity of residential areas in Perth’s eastern suburbs. But public rail infrastructure alone does not make a project sustainable.

Sustainability is a holistic concept that informs thinking and decision-making. It is an integrated approach, part of the whole project life. The PTA has developed a Sustainability Position Statement for the project, outlining the ways in which the project is committed to sustainability. SI-NRW has been committed to integrating environmental, social and governance elements into their decision-making to reduce whole-of-life costs, and contribute to safe and healthy employees, communities and ecosystems. They drove economic, social and environmental innovation during the design and construction phases and encouraged the same from their supply chains and service providers. SI-NRW’s Sustainability Policy Statement outlines their objectives and approach to achieving these commitments.

To find out more about the project's sustainability approach, view the Sustainability fact sheet.


‘Excellent’ sustainability rating for project

At the 2018 Infrastructure Sustainability Council of Australia State Conference the project was awarded an ‘excellent’ rating for its commitment to delivering an innovative and sustainable transport solution for Western Australians.

Embedding integrated sustainability principles in design, procurement and construction processes has been paramount for the project. This means that all individuals and companies involved in the project are committed to developing and building the asset in the most sustainable way possible.

Practices include:

  • Minimising water consumption and use of potable water
  • Minimising energy use and production of greenhouse gases, including use of solar power
  • Sustainable sourcing of materials
  • Implementing at least three State-first innovations
ISCA Excellent Rating






The project’s Sustainability Strategy, prepared to guide the direction of sustainability during planning, design, construction and ultimately in operation, identified over 130 initiatives. These include maximising the use of daylight at Airport Central Station by building a partial glass roof and developing concrete mixes that will reduce the volume of Portland cement used on the project.

The rating is an interim rating and will be replaced by an ‘As Built’ rating following practical completion. The ‘As Built’ rating focuses on ensuring the inclusion of design elements and measurement of sustainability performance during construction.


The reduction of water usage during construction through recycling


The number of cars potentially removed from the road each day thanks to the Airport Line


The reduction of volume of Portland cement used on the project