Abstract
This applied research introduces a novel, transdisciplinary methodological framework for codesigning context-sensitive behavioral nudges to mitigate natural hazard risks, based on the IDEAL method. Grounded in design thinking and integrating insights from behavioral economics, policymaking (OECD BASIC), and product design (DECIDE), the framework empowers community experts to collaboratively prototype interventions tailored to territorial specificities. We developed a replicable framework for integrating nudging into disaster risk reduction that bridges theoretical gaps in the application of nudges to natural hazard management. Tested across three workshops (Valli del Verbano, University of Bari, Politecnico di Milano), the method generated actionable nudge prototypes addressing wildfire preparedness, heatwave response, and drought adaptation. Findings demonstrate the framework’s capacity to bridge theory-practice gaps, foster social acceptability, and produce ethically grounded, behaviorally informed interventions. This paper documents the method’s structure, implementation protocol, observed outcomes, and limitations, offering a replicable model for participatory behavioral design in disaster risk reduction (DRR).