The research project RE-source maps out urban residual flows, in order to then use them as a source for circular thinking, doing and learning. RE-source analyses and provides insight into the structure of the systems, locations, products and materials that are needed for this. At the same time it designs strategies for transforming these residual flows into a resource which can be used again and again. Through the network of the Rotterdam city council, RE-source tries to gain insight into the method of designing, managing and maintaining the outside space and associated material flows. RE-source researches which phases are distinguished, which routes are used and which human and non-human factors – such as locations, involved citizens and professionals, tools, vehicles, distances – play a role in this.

This is collaboration at its highest level, on the very current topic of circularity. RE-source is a classic example of thorough design research, whereby sustainability is given meaning in various forms. Extensive, high-quality research that has resulted in a layered website, on which a wide variety of design language, moving image, material and experts are skilfully interwoven. RE-source is exactly right and succeeds in approaching a complicated theme with a pleasant playfulness. The project has a richness that does justice to the complexity of the topic, from accessible projects to academic applications. In concrete terms, it delivers new design-through-research insights and encourages others to take action in the field of circularity.