Amidst the epistemological turbulence of the Anthropocene, forging new narratives has considerable importance. Departing from human-centred thinking and world-building, a shift in perspective towards a more-than-human worldview requires a continuous process of increasing awareness through various media and education. In our research on DIY tools and methodologies for urban civic interventions, we examine how applying a speculative fabulation method facilitates probing, informing and engaging citizens on a variety of human and more-than-human urban issues. Drawing on the theoretical backdrop from the environmental humanities, through an ethnographic account of two preliminary participatory design tracks, we describe how we infused our workshop interventions and participatory protocols with embodied and material storytelling that probes towards fostering more-than-human imaginaries. We discuss the potentials and pitfalls of using such an approach for tackling urban issues, and end the paper with a propositional outline for integrating the speculative fabulation method in civic HCI. CCS CONCEPTS• Human-centered computing → Human computer interaction (HCI).

Pour le sens commun, les plans, les coupes, les maquettes, les modèles 3D-que nous regrouperons sous le nom d'« objets planologiques » (O.P.) 1-sont des « outils » de conception, de planification ou de représentation propres à la discipline architecturale et urbanistique. On prend d'ailleurs pour acquis que leur manipulation est une affaire de « spécialistes », qui nécessite une forte dose de savoirs « techniques ».