Sri Lanka Risk Assessment Indicators: District-Level Flood and Access Data

HeiGIT produced this collection of risk assessment indicators for Sri Lanka at the administrative level 2 (district) scale, last updated in March 2026. It aggregates demographic, infrastructure, and accessibility data from sources like WorldPop and OpenStreetMap to facilitate structured flood hazard analysis.

Use Cases

• Evaluating disaster resilience by mapping access_pop_hospitals_30min against flood_exposure zones
• Targeting humanitarian aid for vulnerable groups using children_u5 and elderly population counts
• Assessing infrastructure gaps by comparing education_count with pop_u15 demographics per district

Strengths

• Admin level 2 granularity for nationwide coverage
• Integration of WorldPop and OpenStreetMap data
• Includes specific travel-time accessibility metrics for healthcare and education

Limitations

• Potential under-reporting of facilities in regions with low OpenStreetMap contributor activity
• Temporal staleness of underlying demographic data depending on WorldPop census cycles

Provenance

Source

HeiGIT (Heidelberg Institute for Geoinformation Technology) via GAIA Pipeline

Collection Method

Aggregated from WorldPop, OpenStreetMap, and Google Earth Engine using the GAIA processing pipeline

Freshness

Last updated March 2026

Geography

Sri Lanka (Admin Level 2)