Participatory Framework for Urban Pluvial Flood Modeling in the Digital Twin Era

Globally, as urban areas face increasing extreme heavy rainfalls and the resulting pluvial floods caused by inadequate drainage systems, collaboration between governments and local residents becomes crucial in managing flood risks. This paper develops a participatory framework for urban pluvial flood modeling, incorporating open source software, virtual reality, minimum viable product, and gamification aspects.

This framework engages citizens in every phase of the process, from input data preparation and hydrological model construction to model verification and experiments, leveraging local knowledge and collective action. This paper presents a case study on the recurring pluvial flood damages in South Korea's Gangnam region, demonstrating the practical implications of an interactive, web-based crowdsourcing platform to facilitate citizen participation.