
🚨 Public Safety & Emergency · Sequence
How a district coordinates evacuation when a river crosses the danger mark: alert, shelter allocation, transport and headcount at relief camps.
Drawing diagram…
Flood evacuation sequence: a river sensor reports the danger level to the district emergency operations centre (EOC). The EOC issues an evacuation alert to village officers and citizens by SMS. The shelter system assigns villages to relief camps based on capacity. Transport (buses and boats) is dispatched. Camp managers register arrivals on a mobile app and headcounts flow back to the EOC dashboard.
sequenceDiagram participant RS as River Sensor participant EOC as District EOC participant VO as Village Officers actor CZ as Citizens participant SH as Shelter System participant TR as Transport Cell participant CM as Camp Managers RS->>EOC: Danger level crossed EOC->>VO: Evacuation order for 12 villages EOC->>CZ: SMS evacuation alert EOC->>SH: Assign camps for 12 villages SH-->>EOC: Camps by capacity EOC->>TR: Send buses and boats TR->>CZ: Pick-up at village points CZ->>CM: Arrive at relief camp CM->>EOC: Headcount per camp EOC->>EOC: Compare with village population
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