IWRA Proceedings

Recommandations et perspectives

• Urban Planning: Residential and industrial zones show high flood susceptibility.
• NbS Priorities: Riparian reforestation and upstream retention basins.
• Afforestation Test: Lowered 100-year peak flow from 116.8 → 83 m³/s.
• Flood-Resilient Design: Elevated floors, permeable pavements near the river.

Conclusion

• Both methods identify high-risk areas along the river and low-lying zones.
• AHP captures a wider range of flood-prone areas influenced by geomorphology and urban conditions.
• Iber provides high-resolution, physics-based simulations of fluvial flooding.
• The combined approach offers a robust, complementary framework for flood hazard assessment.
• Validation with 2021 flood observations supports AHP’s broader hazard coverage.
• A preliminary NbS test shows peak runoff reduction.