Brussels
Multi-Hazard Response
Compound crisis scenario combining a security incident with simultaneous urban flooding — developed within ESA Accelerate Crisis Preparedness with safe.brussels and Brussels Police as operational partners.
// Analysis Methodology
Compound Threat Detection
Simultaneous processing of two independent hazard streams: (1) security incident data integrated from city CCTV/sensor networks, and (2) real-time flood extent from Sentinel-1 SAR backscatter change detection. Both layers fused in a single operational picture.
Urban Flood Extent Mapping
Sentinel-1 C-band SAR penetrates cloud cover to map inundated streets at 10 m resolution regardless of weather conditions. Change detection against a dry-season baseline identifies newly flooded areas within the urban fabric.
Critical Infrastructure Overlay
Flooded areas cross-referenced against infrastructure database: hospitals, power substations, transport hubs, tunnel entrances. Compound risk score computed — assets threatened by both flood and security perimeter simultaneously flagged as highest priority.
Dynamic Evacuation Routing
Road-network graph updated in real-time as flooded segments are confirmed and security cordons established. Optimal evacuation corridors recalculated every 15 minutes. Population density layers applied to prioritise rescue resource deployment.
Multi-Agency Coordination Layer
Single shared operational map served simultaneously to police, fire, EMS and civil protection command. Each agency sees its own filtered view overlaid on the same ground truth. Decision latency reduced from hours to minutes in simulated exercises.
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