Watershed-BIM Integration for Urban Flood Resilience: A Framework for Simulation, Assessment, and Planning

Panagiotis Tsikas, Athanasios Chassiakos () and Vasileios Papadimitropoulos
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Panagiotis Tsikas: Department of Civil Engineering, University of Patras, 26500 Patras, Greece
Athanasios Chassiakos: Department of Civil Engineering, University of Patras, 26500 Patras, Greece
Vasileios Papadimitropoulos: Department of Civil Engineering, University of Patras, 26500 Patras, Greece

Sustainability, 2025, vol. 17, issue 17, 1-25

Abstract: Urban flooding represents a growing global concern, especially in areas with rapid urbanization, unregulated urban sprawl and climate change conditions. Conventional flood modeling approaches do not effectively capture the complex dynamics between natural watershed behavior and urban infrastructure; they typically simulate these domains in isolation. This study introduces the Watershed-BIM methodology, a three-dimensional simulation framework that integrates Building and City Information Modeling (BIM/CIM), Geographic Information Systems (GIS), Flood Risk Assessment (FRA), and Flood Risk Management (FRM) into a single framework. Autodesk InfraWorks 2024, Civil 3D 2024, and RiverFlow2D v8.14 software are incorporated in the development. The methodology enhances interoperability and prediction accuracy by bridging hydrological processes with detailed urban-scale data. The framework was tested on a real-world flash flood event in Mandra, Greece, an area frequently exposed to extreme rainfall and runoff events. A specific comparison with observed flood characteristics indicates improved accuracy in comparison to other hydrological analyses (e.g., by HEC-RAS simulation). Beyond flood depth, the model offers additional insights into flow direction, duration, and localized water accumulation around buildings and infrastructure. In this context, integrated tools such as Watershed-BIM stand out as essential instruments for translating complex flood dynamics into actionable, city-scale resilience planning.

Keywords: urban flooding; flood risk assessment; Watershed-BIM; BIM–GIS Integration; urban resilience (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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