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Compare Venice areas on the map, with local evidence and source details.
Safrom's citywide research estimate is 82/100. Higher scores mean safer on the model's scale. Evidence as of . Confidence: D.
6 areas with estimates. Area evidence as of .
mapped_p2_flood_land_percentage · 2020-01-01/2020-12-31.
Local evidence is the ISPRA national 2020 P2 flood-hazard mosaic (v5.0), the approximately 100–200-year return-period scenario, which compiles the district authorities’ plans available in 2020. It is a historical structural exposure baseline, not the current legal PGRA, a tide forecast, or an acqua alta warning. Venice is protected by the MOSE mobile barriers (operational since 2020) and other works. The 2020 mosaic and this metric do not model MOSE operation, flood depth, building protection, or the probability that a visitor is harmed; mapped exposure is not a statement about current day-to-day flooding. District metric is the percentage of land in each of the six Istat 2021 municipalità intersecting mapped P2 polygons. Lagoon water (Istat 2021 census sections coded COD_ACQUE 70005, zero residents) is excluded from both the denominator and the map. Unmapped land is not classified as flood-free. Area calculated in UTM 33N before 8 m simplification. Only disaster_and_environment varies locally; all other dimensions retain explicitly labelled Italy national priors. Source: ISPRA (2020), Pericolosità e indicatori di rischio alluvioni – Piattaforma IdroGEO, https://idrogeo.isprambiente.it. CC BY 4.0, https://creativecommons.org/licenses/by/4.0/. Boundaries and land/water classification: Istat, CC BY 4.0. Aggregated and scored by Safrom; ISPRA and Istat do not endorse these estimates. The July 2025 licence document page 2 explicitly covers the 2020 flood mosaic. The citywide score uses Italy national priors. Local evidence adjusts only disaster_and_environment.
Download the scored safety layer and calculation evidence (GeoJSON)
Local evidence is the ISPRA national 2020 P2 flood-hazard mosaic (v5.0), the approximately 100–200-year return-period scenario, which compiles the district authorities’ plans available in 2020. It is a historical structural exposure baseline, not the current legal PGRA, a tide forecast, or an acqua alta warning. Venice is protected by the MOSE mobile barriers (operational since 2020) and other works. The 2020 mosaic and this metric do not model MOSE operation, flood depth, building protection, or the probability that a visitor is harmed; mapped exposure is not a statement about current day-to-day flooding. District metric is the percentage of land in each of the six Istat 2021 municipalità intersecting mapped P2 polygons. Lagoon water (Istat 2021 census sections coded COD_ACQUE 70005, zero residents) is excluded from both the denominator and the map. Unmapped land is not classified as flood-free. Area calculated in UTM 33N before 8 m simplification. Only disaster_and_environment varies locally; all other dimensions retain explicitly labelled Italy national priors. Source: ISPRA (2020), Pericolosità e indicatori di rischio alluvioni – Piattaforma IdroGEO, https://idrogeo.isprambiente.it. CC BY 4.0, https://creativecommons.org/licenses/by/4.0/. Boundaries and land/water classification: Istat, CC BY 4.0. Aggregated and scored by Safrom; ISPRA and Istat do not endorse these estimates. The July 2025 licence document page 2 explicitly covers the 2020 flood mosaic. The citywide score uses Italy national priors. Local evidence adjusts only disaster_and_environment.
Boundaries: Istat · Venice municipalità 2021 and census-section land/water classes, 2025 release (CC BY 4.0; Source: Istat. Lagoon sections removed, reprojected and simplified by Safrom. https://www.istat.it/en/legal-notice/).
Local evidence is the ISPRA national 2020 P2 flood-hazard mosaic (v5.0), the approximately 100–200-year return-period scenario, which compiles the district authorities’ plans available in 2020. It is a historical structural exposure baseline, not the current legal PGRA, a tide forecast, or an acqua alta warning. Venice is protected by the MOSE mobile barriers (operational since 2020) and other works. The 2020 mosaic and this metric do not model MOSE operation, flood depth, building protection, or the probability that a visitor is harmed; mapped exposure is not a statement about current day-to-day flooding. District metric is the percentage of land in each of the six Istat 2021 municipalità intersecting mapped P2 polygons. Lagoon water (Istat 2021 census sections coded COD_ACQUE 70005, zero residents) is excluded from both the denominator and the map. Unmapped land is not classified as flood-free. Area calculated in UTM 33N before 8 m simplification. Only disaster_and_environment varies locally; all other dimensions retain explicitly labelled Italy national priors. Source: ISPRA (2020), Pericolosità e indicatori di rischio alluvioni – Piattaforma IdroGEO, https://idrogeo.isprambiente.it. CC BY 4.0, https://creativecommons.org/licenses/by/4.0/. Boundaries and land/water classification: Istat, CC BY 4.0. Aggregated and scored by Safrom; ISPRA and Istat do not endorse these estimates. The July 2025 licence document page 2 explicitly covers the 2020 flood mosaic. The citywide score uses Italy national priors. Local evidence adjusts only disaster_and_environment.
Natural=4.9; Current Conflict Intensity=1.0; Infrastructure=0.5; Access to health care=0.4. Published 0–10 components multiplied by ten for the existing research risk scale.; Country humanitarian-risk priors, not measured local street risks. European Union, CC BY 4.0.
Homicide: 0.6 per 100,000 (2023); theft: 1417.2 per 100,000 (2022). Country observations.; Weak property calibration: existing France research risk 45 + bounded(10 × log2(1417.2/2011.4), ±20), using the same-year UN theft series. Definitions and reporting differ between countries.
49 deaths per million residents, converted to 4.9 per 100,000. Preliminary estimate. European Union, CC BY 4.0.
Local evidence is the ISPRA national 2020 P2 flood-hazard mosaic (v5.0), the approximately 100–200-year return-period scenario, which compiles the district authorities’ plans available in 2020. It is a historical structural exposure baseline, not the current legal PGRA, a tide forecast, or an acqua alta warning.; Venice is protected by the MOSE mobile barriers (operational since 2020) and other works. The 2020 mosaic and this metric do not model MOSE operation, flood depth, building protection, or the probability that a visitor is harmed; mapped exposure is not a statement about current day-to-day flooding.; District metric is the percentage of land in each of the six Istat 2021 municipalità intersecting mapped P2 polygons. Lagoon water (Istat 2021 census sections coded COD_ACQUE 70005, zero residents) is excluded from both the denominator and the map. Unmapped land is not classified as flood-free.; Area calculated in UTM 33N before 8 m simplification. Only disaster_and_environment varies locally; all other dimensions retain explicitly labelled Italy national priors.; Source: ISPRA (2020), Pericolosità e indicatori di rischio alluvioni – Piattaforma IdroGEO, https://idrogeo.isprambiente.it. CC BY 4.0, https://creativecommons.org/licenses/by/4.0/. Boundaries and land/water classification: Istat, CC BY 4.0. Aggregated and scored by Safrom; ISPRA and Istat do not endorse these estimates. The July 2025 licence document page 2 explicitly covers the 2020 flood mosaic.