How can we define guidelines for priority occupation of municipalities after the 2024 floods — in a safe, fast, and low-budget manner?

Case Study: Seven municipalities in Taquari Valley Region, in Rio Grande do Sul – Brazil.

Methodology: Application of a multicriteria analysis that involved modeling, normalization, and weighting of factors (slope, flood risk, landslides, and infrastructure) to identify a map with four levels of urban suitability, considering climate change.

Results: Classification of safe areas suitable for urban expansion, serving as an immediate and emergency technical support tool.

Data Sources: FEPAM/RS, MapBiomas, DAER, OpenStreetMap, IPH/UFRGS.

Tools: QGIS, Python, and Multicriteria Analysis. 

---

Reports Developed

Reports delivered to SEDUR (Secretariat of Urban and Metropolitan Development of Rio Grande do Sul), in portuguese.

1. Risk Zoning

• Arroio do Meio
• Colinas
• Cruzeiro do Sul
• Encantado
• Estrela
• Muçum
• Roca Sales

Example: Maps of the municipality of Arroio do Meio

2. Preliminary Guidelines for Priority Occupation

• Arroio do Meio
• Colinas
• Cruzeiro do Sul
• Encantado
• Estrela
• Muçum
• Roca Sales

Example: Maps of the municipality of Muçum

3. Diagnosis and Technical Reading

• Arroio do Meio
• Colinas
• Cruzeiro do Sul
• Encantado
• Estrela
• Muçum
• Roca Sales

Example: Maps of the municipality of Roca Sales