A Preliminary Contribution towards a Risk-Based Model for Flood Management Planning Using BIM: A Case Study of Lisbon

Area of Science:

• Urban Planning and Architecture
• Climate Change Adaptation
• Geographic Information Systems (GIS)

Background:

• Global warming necessitates climate-proof urban planning, especially for coastal cities facing increased flood risks.
• Existing research lacks integration between sea ground and land surveys for effective coastal management.
• Building Information Modeling (BIM) offers potential for managing complex urban data and risks.

Purpose of the Study:

• To explore the use of BIM as a foundational tool for managing coastal city flood risks.
• To develop a multidisciplinary approach connecting urban planning, architecture, and BIM for climate change adaptation.
• To create a BIM-based model for risk assessment and coastline settlement management.

Main Methods:

• A multidisciplinary approach integrating urban planning and architectural principles.
• Utilizing Building Information Modeling (BIM) to combine crowdsourced data for geometric and information modeling.
• Developing a BIM model incorporating topography, riverbed, and waterway data for a Lisbon case study.
• Generating risk-based 3D maps for areas near the Tagus River shoreline.

Main Results:

• A novel BIM model was developed, integrating diverse datasets for urban coastal risk management.
• The model facilitates coordination among stakeholders by providing an updatable and improvable urban area model.
• Risk-based 3D thematic maps were successfully generated for the Lisbon shoreline area.

Conclusions:

• BIM is a viable and foundational tool for managing coastal risks and enhancing city resilience to climate change impacts like flooding.
• The integrated BIM approach provides a comprehensive framework for coastline settlement management and inter-actor coordination.
• This research sets a precedent for future studies on leveraging BIM for climate adaptation in coastal urban environments.