Modeling Bridge Lifespans and Material Flows for a Circular Urban Future

Bridges are more than vital transportation links—they are also repositories of vast material resources that can be reclaimed to support a circular economy [2,3]. In a pioneering study, Lange, Abdelshafy, and Walther [4] present a dynamic-locational material flow analysis (DL-MFA) framework to model the quantity, longevity, and spatial distribution of bridge infrastructure. This approach enables precise forecasting of material flows resulting from demolition, offering essential insights for sustainable urban planning.