A Conceptual Framework for Measuring the Exposure to Tsunamis of Puerto Rican Coastal Communities Meulaboh, Aceh Jean - Edouard Faucher Saylisse Dávila, PhD Department of Industrial Engineering University of Puerto Rico, Mayagüez, PR Roy Ruiz - Vélez Puerto Rico Seismic Network Puerto Rico Water Resources and Environmental Research Institute University of Puerto Rico, Mayagüez, PR
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A Conceptual Framework for Measuring the Exposure to Tsunamis of Puerto Rican
Coastal Communities
Meulaboh, Aceh
Jean-Edouard FaucherSaylisse Dávila, PhD
Department of Industrial EngineeringUniversity of Puerto Rico, Mayagüez, PR
Roy Ruiz-VélezPuerto Rico Seismic Network
Puerto Rico Water Resources and Environmental Research InstituteUniversity of Puerto Rico, Mayagüez, PR
Agenda
ANP model
Data collection
Tsunami-prone zones
Objectives
Background
Data pre-processing
Cities rank by TEI
Future Work
Vulnerability
Federal Emergency Management Agency (2013), Community Coastal Resilience.
1
2
3
What assets are within tsunami-prone areas?
What relative proportion of assets are in tsunami-prone areas?
How communities withstand, adapt, and recover from the
onslaught of a tsunami?
Relevance
SOURCE:
• A tsunami is a series of ocean waves generated by sudden displacements inthe sea floor, landslides, or volcanic activity.
• Historical evidence suggests Puerto Rico and the Caribbean are seismicallyactive zones.
• Devastating tsunamis in the last decade, such as the ones that occurred inthe Indian Ocean (2004) and Japan (2011), caused over:
• 250,000 deaths
• 220 billion dollars in losses
• 100,000 structures affected
Objectives
1. Advance the understanding of the vulnerability to tsunamis of Puerto Rico’s coastal communities.
2. Characterize tsunami evacuation zones in terms of exposureand sensitivity.
3. Support emergency responders and strategic planners in the development of mitigation, response, and recovery strategies for tsunamis.
NOTE: By coastal communities we refer to cities with direct sea access and cities without direct sea access but that are still subject to tsunami floods (Canóvanas and Bayamón).
Tsunami-prone zones
• PRSN and UPRM Marine Sciences develop tsunami flood maps.
• PRSN develops tsunami evacuation zones (TEZ).
• TEZ maps are made official after approval of respective municipality mayors and local & state PREMA officials.
• All data analysis considered official TEZ maps as of January 2014.
PREMA = Puerto Rico Emergency Management Agency
Data Collection
Data Collection
• Data Sources
Puerto Rico Emergency
Management Agency
[PREMA] (2003)
• Dasymetric analysis
– All variables were calculated for the TEZ zone using GISdasymetric mapping analysis.
– This method facilitate data transferring from one layer(e.g., census tracks) to another layer with zones of relativehomogeneity (e.g., employee zones).
GIS Data Pre-Processing
Assumptions
Data is uniformly distribu-ted over zones of interest.
Areal weighting is used to discriminate between city-level and TEZ-level data.
e.g., Employee Zones
GIS Data Pre-ProcessingZones of Interest
PO
PU
LA
TIO
N
FA
CIL
IT
IE
SE
CO
NO
MY
LA
ND
U
SE
Human Developed Zones
Inhabited ZonesEconomic Activity Zones
PREMA Zones
Source: PREMA
ANP model
Legend:ANP = Analytic Network ProcessTEZ = Tsunami Evacuation Zone
Cities with territories
within TEZ
Economy
within TEZ
Human
Developed
Non-Human-
Developed
Owner-occupied
households
Recreational
housing
Renter-
occupied households
Population within TEZ
Population attributes
Vulnerable population
Population over
65 yrs old
Population
under 5 yrs old
Other
Median Age
Single-mother
households
Critical
facilities
Public venues
Essential facilities
Banks
Grocery stores
PharmaciesGas stations
Courts of law
ParksMovie
theatersHotels
SchoolsZoos
Shopping centers
Fast food restaurants
Major streets and highways
Tourist attractionsMuseums
UniversitiesStadiumsChurches
Public beaches
⁞
Fire stationsHospitals
State agency for emergency
management (AEMEAD)
Police stationsRadio
TelevisionWater treatment
plantsPower stations
Ambulance Emergency Response VehiclesEssential
government facilities for
disaster management
⁞
Tourists
Facilities
within TEZ
< high school
degree
Disabled
population
Land Use
within TEZ
Households
Household
size
Income below poverty level
Taxes on income
Employee
salaries
Individuals
Corporations
Total sales (local +
exports)
Government
ANP in Super Decisions
Puerto Rico Tsunami Exposure Index (TEI)
ECONOMY FACILITIES
POPULATION LAND USE
Exposure and Sensitivity Zone I
Future Work
• Develop index for adaptive capacity by incorporating variables that quantify o mitigation, response, and recovery efforts
o e.g., pedestrian evacuation time• Reduce the number of vulnerability attributes• Consider dimensionality reduction techniques
Conclusions
• Develop a new methodology that can:
• Be easily adapted to other natural disasters.
o Even more than one disaster simultaneously.
• Facilitate how public officials manage disasters by:
o Clearly delineating highly vulnerable hot spots.
o Outlining the scheme for preparedness funding
allocation.
Acknowledgements
• Juan Ayala
• Fernando Salazar
• Nicole Castiel
• Janedys Malavé
Discussion
Jean-Edouard Faucher – Estudiante GraduadoDepartamento de Ingeniería Industrial [email protected]