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Urban structure reinforces attitudes towards tsunami evacuation
Fumiyasu Makinoshima1, Yusuke Oishi2, Fumihiko Imamura3
1Fujitsu Limited, Kawasaki, 211-8588, Japan. f.makinoshima@fujitsu.com.
Scientific Reports
|May 17, 2023
Summary
Urban structure significantly impacts tsunami evacuation success. Root-like coastal cities improve evacuation rates, while grid-like structures can also enhance safety with leading evacuees, optimizing planning for life-saving actions.
Area of Science:
- Disaster Management
- Urban Planning
- Tsunami Research
Background:
- Evacuation is crucial for survival during natural disasters like tsunamis.
- Developing effective evacuation strategies remains a significant challenge.
Purpose of the Study:
- To investigate the influence of urban structures on tsunami evacuation attitudes and success.
- To explain regional variations in tsunami casualty numbers based on urban morphology.
Main Methods:
- Agent-based evacuation simulations were employed.
- Comparison of root-like and grid-like urban structures was conducted.
Main Results:
- Root-like urban structures in ria coasts enhance evacuation attitudes and rates by managing flow.
- Grid-like structures can improve evacuation tendencies by propagating positive attitudes, especially with leading evacuees.
Conclusions:
- Urban design is a key factor in successful tsunami evacuations.
- Harmonizing urban and evacuation planning can make successful evacuations more predictable.
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