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Infrastructure Sustainability can be defined as, Infrastructure that is designed, constructed and operated to optimise environmental, social and economic outcomes of the long term.

Infrastructure is crucial to sustainability in both its role in configuring society and the way it functions as well as the way infrastructure is planned, designed, constructed, operated and adapted.

The IS rating tool is an industry developed, owned and operated infrastructure sustainability rating tool. IS evaluates sustainability initiatives and potential environmental, social and economic impacts of infrastructure projects. The initiatives are based on industry best practice and were developed as a practical collection of voluntary best practices designed to help asset owners integrate sustainability into their projects.

As well as the opportunity to use IS for the purpose of gaining project recognition, it also provides a framework for increased awareness of key sustainability issues and a structure for organisational improvement. In developing IS, it was intended to not only improve project performance, but to align the mindsets of designers, project owners, and decision-makers, to transform the way infrastructure is planned, designed, built, and operated.



ISCA recognises that sustainable outcomes on a project are achieved by the collective input, effort and drive of a range of key stakeholders. This effort and input extends across all the planning, design, construction and operation phases of a project.