
How the change works
- 01 / Public decision
Preparation and alert
- 02 / Physical change
Accessible evacuation
- 03 / Possible outcome
People under cover in time
An alert saves opportunities for action when people know where to go and can get to a suitable place in time.
Research and local documents ↓What the evidence tells us
Research on Bangladesh documents a strong historic decrease in cyclone deaths and the combined role of alert, shelter, preparation and evacuation.
Putting the choices into practice
Warning
The challengeInformation not received
The responseUnderstandable communication
Path
The challengeInterrupted road
The responseViable access
People
The challengeAutonomous evacuation only
The responseAssistance to those who need it
The diagram compares choices and conditions for putting them into practice. Measured outcomes and their limits are discussed in the evidence.
Research and local documents ↓Conditions and limits
Different cyclones are not identical experiments: trajectory, intensity and exposure change. No percentage is attributed to shelters alone.
Other possible benefits
Services that can be used by the community and greater responsiveness.
Research and local documents
- Local document and reported findingHaque et al., 2012 · Reduced death rates from cyclones in Bangladesh ↗
Research on the case, mechanism, or measures discussed in the sheet.

