nobuko goto 津波. * the height of tsunami was higher than estimated height by government * the...
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Nobuko Goto
津波
TSUNAMI PREPAREDNESS IN LOS ANGELES
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* The height of Tsunami was higher than estimated height by government
* The height of Tsunami was higher than multistory buildings
Japan Tsunami Damage Northeastern Japan was hit by a massive
earthquake and Tsunami on March 11, 2011. The damage was worse;
The height of Tsunami was higher than the level estimated by government
Local people are not used to Tsunami Preparedness
breakwater
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New Tsunami Preparedness approach
Source: Shizuoka Prefecture,http://www.e-quakes.pref.shizuoka.jp/shiraberu/hinan/05/04.html
Tsunami
Tsunami
Tsunami
Expected Inundation areas
Evacuation areas
Tsunami evacuation multistory building
About 200 meters
HighLow
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Research Questions
Using Tsunami preparedness approach of Tsunami evacuation buildings, Which areas are missing with tall buildings for
evacuation? Which areas would have more damage by
Tsunami ? Which areas government should begin, if this
policy approach is adopted?
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Study Area
California
2000mMalibu
Santa MonicaRedondo Beach
Rancho Palos Verdes
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Covered Areas by existing structures (200 and 500 m)
* Average male walking (80m/minutes)- 200m: 2.5 minutes, 500m: 6.25 minutes
Total number of buildings in the hazard area: 25,4391
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Possible heavy damage locations
Influence factors Low elevation Old age of building High percentage of elderly people Close distance
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1. Elevation
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2. Age of building
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3. Proportion of elderly people
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4. Distance
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Missing Evacuation Areas with high priority
Aggregate elements and find possible areas of heavy damage Parameters and weight
Parameters Level WeightElevation 2 50%
Distance 4 25%
Percentage of elderly 3 15%
Age of building * 2 10%
* I weighed this parameter only 10%, because the minimum size of survey is block group.
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Model - reclassifying
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Possible damage areas
High
Low
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High priority areas for Tsunami preparedness
Manhattan Beach ~ Hermosa Beach
Between Marina Del Rey and LAX
Areas close to Malibu beach coast
Around Santa Monica Airport
High
Low