The transition to a circular economy presents both significant challenges and opportunities for local government, particularly in the realm of public infrastructure. This paper explores how circular economy (CE) principles can be effectively embedded into the built environment within a local government context, drawing on research and insights from a study tour to the United States and Canada, as well as existing practices within Australia.
The circular economy is an economic system aimed at eliminating waste and the continual use of resources, contrasting with the traditional linear economy of ‘take, make, dispose.’ By keeping resources in use for as long as possible, extracting maximum value from them, and recovering and regenerating products and materials at the end of their service life, the circular economy offers a sustainable alternative.
Key findings from the research highlight five main themes: waste management and recycling, sustainable construction practices, innovative public spaces, policy and collaboration, and technology and innovation. Advanced waste management practices, such as separate waste streams for construction and demolition materials, significantly improve recovery rates. Sustainable construction practices, including the promotion of building certifications like LEED and the use of recycled materials, reduce the environmental impact of new projects. Innovative public spaces, such as multi-functional centres and living labs, foster community engagement and sustainable practices.
Policy and collaboration are crucial for integrating sustainability into urban planning and procurement processes. Examples include City of Charlotte's road preservation program program and the Region of Peel’s sustainable procurement by-law. Technology and innovation, particularly the use of AI for asset management and material engineering research, drive efficiency and sustainability in public works.
Despite the benefits, several challenges hinder the widespread adoption of circular economy principles. These include the need for design for disassembly, support for higher-value reuse, bridging the knowledge gap, securing funding, and overcoming regulatory and market barriers.
To address these challenges, the paper recommends adopting advanced recycling and waste management practices, promoting sustainable construction, activating underutilised public spaces, fostering policy and collaboration, and leveraging technology and innovation. By embedding these principles into the built environment, local governments can create more sustainable, resilient, and community-focused urban areas.
This paper aims to provide actionable insights and recommendations for local governments to effectively integrate circular economy principles into their infrastructure projects and urban development strategies, contributing to a more sustainable future for their communities.