nigechizu 20150516 nigechizu v0.2 - understanding risk€¦ · 16/05/2015 · microsoft powerpoint...
TRANSCRIPT
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NIGECHIZUNIGECHIZUNIGECHIZUNIGECHIZU
Community Community Community Community
Evacuation MappingEvacuation MappingEvacuation MappingEvacuation Mapping
NIKKENNIKKENNIKKENNIKKEN SEKKEISEKKEISEKKEISEKKEI Volunteer Volunteer Volunteer Volunteer TeamTeamTeamTeam
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What is NIGECHIZU?
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A Hazard
Mapping and
Evacuation
Planning tool
for
communities
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Step 1:
Visualize
hazard -
Map historic
Tsunami
extents
1896
1933
1960
2011
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Step 2:
Identify and
Mark the
evacuation
points (safe
locations)
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Step 3:
Color all roads
according to the
distance from the
evacuation points
*Use different colors for
every 3-min distance
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Distance (m)
Time (min) min
43 m/minEstimated walking speed of an elderly person
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Distance (m)
Time (min)
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Linking the results to Preparedness Actions
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Comparing the Cost Effectiveness of Options to Reduce the Evacuation Time
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Build new tertiary roads
2-3 years Build new roads to reduce the time to reach high ground
Build new Bypasses
Cost: 0.35 million Yen
Completion: 3 ~ 6 months
Cost: 750 million yen
Completion: 2 ~ 3 years
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Build evacuation towers
3-5 years Making coastal areas safer against Tsunami
Prepare elevated locations as evacuation points
Cost: 13 million Yen
Completion: 3 ~ 5 years
Cost: 35 million Yen
Completion: 3 ~ 5 years
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Relocation of Evacuation Center
Building Evacuation Towers
Traffic signage guiding
evacuation directions
Evacuation Towers
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How much risk would the local community be willing to accept?
�It is not possible to build a 100% safe environment
Key question and discussion point with the community:
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Inspires voluntary actions
Naniwa san
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Inspires voluntary actions
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Evacuation Topology and Time Map
This is the Escape Map version 2.0
In addition, we are developing a tool to enable more people to be involved in community
development by programming the escape map and putting it up on the Web.
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nigechizuproject.com
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Evacuation Topology and Time Map
This is the Escape Map version 2.0
Let’s give it a try!