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.


‘Leading’ sustainability rating for project

The Infrastructure Sustainability Council (ISC) Rating Scheme is Australia and New Zealand’s only comprehensive rating system for evaluating economic, social and environmental performance of infrastructure across the planning, design, construction and operational phases of infrastructure assets.

From the get-go the METRONET Forrestfield-Airport Link project committed to being an innovative and sustainable project, providing a solution for enhancing the connectivity, liveability and prosperity of Perth and its eastern suburbs, including the airport. The PTA, in conjunction with lead contractor Salini Impregilo - NRW Joint Venture took a holistic approach that informed thinking and decision-making to meet the needs of the present without compromising the needs of future generations.

In 2018, the project was awarded an Excellent Design Rating recognising the project’s commitment to an innovative and sustainable transport solution for Western Australia.

With the project complete and the Airport Line operational, an As Built rating was sought. In December 2022, the Infrastructure Sustainability Council awarded a Leading Rating – the highest classification within the framework – verifying that the commitments made as part of the design have been successfully implemented.

The METRONET Forrestfield-Airport Link project is proud to be the first rail project in Western Australia to achieve an IS rating, delivering a sustainable legacy for the people of Western Australia.






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