Material circularity has become a key focus for infrastructure, driven by growing policy, procurement and sustainability expectations. The direction is clear: circularity is becoming an expectation across major projects. Yet despite this momentum, many organisations still struggle to measure and demonstrate circularity in a consistent, defensible way.

As a major transport infrastructure project with ambitious sustainability targets, METRONET’s Morley–Ellenbrook Line required a coordinated approach to carbon management, materials assessment and ratings performance across multiple project phases and disciplines.

Carbon is no longer a back-office issue. It’s a boardroom priority, an investor demand, and a procurement requirement. The days of focusing solely on operational energy efficiency are over; the market now demands visibility across the entire value chain, which includes embodied carbon.