Infrastructure Sustainability

Infrastructure Sustainability

Infrastructure is the basic physical and organisational structures needed for the operation of a society. It is the roads that we drive on, the electricity lines that bring us power, and the airports we fly from.

ISCA are concerned with all types of infrastructure, including but not limited to:


In an age of climate change, pollution and limited resources, the sustainability of this infrastructure is now more imperative than ever before. Sustainability is the ability to maintain rates of renewable resource harvest, pollution creation, and non-renewable resource depletion that can be continued indefinitely. In 2016 Australia spent over $401 Billion on built infrastructure, which is a 33% increase from 2006. Similarly in New Zealand, there was $39 Billion spent in 2015, compared to $28 Billion spent in 2005. As technology advances and populations continue to grow, there becomes an increasing demand for the construction and maintenance of infrastructure.

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

‘Sustainability is doing things better; It's being more efficient, it's being intelligent, it's being smart, it's being integrated, it's being connected, it's being challenging, it's being able to do what we do as a society, but in a much more efficient way.’ Nicole Neal – Cardno


The IS Rating Tool was developed by ISCA in collaboration with the industry, to drive and measure sustainability within infrastructure projects and assets. The tool can be applied to built infrastructure, but also to the planning, design and operation of infrastructure.

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.

To find out more about ISCA, and what we do, click here.