Advancing North Carolina’s Resiliency · IHRM – Vulnerabilities. Vulnerability Identification...
Transcript of Advancing North Carolina’s Resiliency · IHRM – Vulnerabilities. Vulnerability Identification...
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Joint Study Committee on EmergencyPreparedness and Disaster Management Recovery
John Dorman, Assistant Emergency Management DirectorMay 5, 2010
Advancing North Carolina’s ResiliencyIntegrated Hazard Risk Management
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• Expand from the one-dimension of hazard identification to an IntegratedHazard Risk Management strategy that integrates hazard andvulnerability identification, calculates risk, and supports state and localgovernment mitigation;
• Develop data and tools that enable property owners, the private sector(CI/KR), and communities to define hazard risk on a routine basis;
• Effectively communicate these risks to the public and private sectordecision makers, stakeholders, homeowners to understand:
– What are your hazards?
– What are your vulnerabilities and at what point are they exposed to loss?
– What are your specific risks associated with each and all hazards?
– How can you mitigate this risk effectively and efficiently?
• Implement IHRM vision in concert with the flood map maintenanceschedule.
• Work in concert with FEMA on Risk MAP implementation (serve as aprototype, demonstration, standards development)
Integrated Hazard Risk Management - Vision
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During the 2009 Session, 166A-5(3) was amended to include:
• (EM) Serving as the lead state agency for the coordination of information
and resources for hazard risk management, which shall include the
following responsibilities:
Coordinating with other State agencies and county governments in
conducting hazard risk analysis. To the extent another State agency has
primary responsibility for the adoption of hazard mitigation standards, those
standards shall be applied in conducting a hazard risk analysis.
Establishing and maintaining a hazard risk management information system
and tools to display natural hazards and vulnerabilities and conducting risk
assessment.
Acquiring and leveraging all natural hazard data generated or maintained by
State agencies and county governments.
Acquiring and leveraging all vulnerability data generated or maintained by
State agencies and county governments.
Maintaining a clearinghouse for methodologies and metrics for calculating
and communicating hazard probability and loss estimation.
Hazard Risk Management - Legislative Intent
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IHRM defines Risk as a function of:
• Hazard’s Probability (HP)
• Vulnerabilities (V)
• Consequences (C), both direct and indirect cost
• Resilience (R), influenced by individual / community
wealth and existence of mitigation planning
Risk = f { HP, V, C, R}
Speaking of Risk – What is it?
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First Floor Elevations
Hazard Data1. Hazard Identification
2. Vulnerable Systems
Vulnerabilities
3. Risk Assessment
5. Mitigation
4. Communication
Integrated Hazard Risk Management - Concept
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• Identifies and displays all natural hazards at different magnitudelevels / annual frequency on the parcel, statewide, and nationallevel for:
IHRM – Hazard Identification
• Riverine flooding
• Dam failure
• Levee failure
• Coastal flooding
• Storm surge from hurricanes
• Coastal erosion
• Landslides
• Earthquakes• Wind (straight line/hurricane)• Tornadoes• Wildfire• Snow/Ice• Hail• Drought• Sea Level Rise *
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• Acquire / generate spatial polygons for all structures greater than 800
square feet (~ 7.5 million structures in North Carolina).
• Collect all critical infrastructure (18 sectors) locations, failure threshold,
and failure interdependency data (model construction)
• Collect detail First Floor Elevations for all structures (Inclinometer for
structures w/in the 500-year SFHA. LiDAR –HAG & LAG for all
structures outside the 500-year SFHA).
• Collect and conflate parcel data (FFE, foundation type, stories, roof
slope, digital picture, gables) with structure shapefiles.
• Acquire / leverage social vulnerability index (SoVi – Susan Cutter,
and/or Uvi – Howard University)
IHRM – Vulnerabilities
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Vulnerability IdentificationBuilding Footprints Project
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Vulnerabilities – Building Footprints(Developed for over 6,900,000 buildings to date)
* 100-percent complete by mid-June 2010
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– Statewide Parcel Data – 98 counties
IHRM Scope: Vulnerabilities
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– Building Attributes:
IHRM Scope: Vulnerabilities
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Building Footprints Project
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IHRM – VulnerabilitiesCI / KR Interdependencies
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• Derive / calculate the estimated damage (direct and indirect loss)for each structure for each hazard (different event thresholds –e.g.10, 25, 50, 100, and 500-year flood).
• Derive / calculate the damage threshold event probability duringa 5, 10, 15, and 30-year mortgage period.
• Generate overall risk assessment (calculated from probability,financial loss calculation, and level of event vulnerability) for eachstructure for each hazard.
• Enable the property owner / community to derive / calculate thethreshold event causing social and environmental vulnerability.
• Enable communities / private sector to calculate high-riskproperties, hazards, habitat, and/or population.
IHRM – Risk Assessment
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• Provide a mitigation strategy decision tree for each hazard.
• Provide a “BCA / ROI Lite” calculator for select mitigationstrategies.
• Provide automated mitigation plan template for homeowner tocommunity.
IHRM – Risk Mitigation
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Progression to Risk
Pre - 2000 Map Mod Vulnerabilities
Consequences IHRM
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Pre – 2000 Data Needs
Vector Data
SFHA BoundaryFlood Insurance
Mandate
Horizontal In / Out -with add’t data
Business Value
HazardProbability –1% annual
chance flood
Risk = f { HPHP, V, C, R }
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Map ModernizationMap Modernization
HazardProbability - 1%,
0.2% annualchance flood
Data Needs
Vector Data
SFHA BoundaryFlood Insurance
Mandate
In / Out - withadditional data
Business Value
Vector Data
SFHA Boundary
Aerial Base
Elevation Data
Insurance Ratingfrom Survey FFE
Vertical In/Out –with additional data
BFEs
Flood InsuranceMandate
Horizontal In / Out -with add’t dataRisk =Risk = ff {{ HPHP, V, C, R }, V, C, R }
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Vulnerabilities
Adjacent Grade
First FloorElevations
Foundation Type
Value
Data Needs
Built Environment
Risk = f { HP, VV, C, R }
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Data Needs
Vector Data
SFHA BoundaryFlood Insurance
Mandate
Horizontal In / Out -with add’t data
Business Value
Aerial Base
Elevation Data
Insurance Ratingfrom Survey FFE
Vertical In/Out –with additional data
BFEs
Consequences –Direct Loss
Risk = f { HP, V, CC, R }
Depth Grids Depth of Flooding
Adjacent Grade
First FloorElevations
Foundation Type
Value
Depth Grids Depth of Flooding
Structural Risk
Address: 103 Shepard Drive, Rocky Mount, NC
First Floor Elevation: 79.3 ft
% Chance of Flooding in 30 Year Term: 52%
Threshold Return Period: 20 Year
Flooding Depth and Damages for Building:
Flooding ReturnPeriod
FloodingDepth
Damages toBuilding
10 Year 0 ft $0
25 Year 0.6 ft $15,000
50 Year 1.4 ft $45,000
100 Year 3.5 ft $80,000
500 Year 7.6 ft $200,000
*Annualized Damages for this property are $8,750
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Integrated Hazard Risk Management
DamDamBreakBreak
LeveeLeveeFailureFailure
RiverineFlooding
FireFireRiskRisk
CoastalErosion
LandslideLandslideRiskRisk
Data Needs
Vector Data
SFHA BoundaryFlood Insurance
Mandate
Horizontal In / Out -with add’t data
Business Value
Aerial Base
Elevation Data
Insurance Ratingfrom Survey FFE
Vertical In/Out –with additional data
BFEs
Depth Grids Depth of Flooding
Adjacent Grade
First FloorElevations
Foundation Type
Value
Depth Grids Depth of Flooding
Structural RiskAdd AdditionalAdd AdditionalHazardHazard
Probability DataProbability Dataand Becomesand BecomesHazard RiskHazard Risk
With EachWith EachAdditional DataAdditional Data
Input EverInput Ever
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Integrated Hazard Risk Management
Socio-economicsCriticalInfrastructure
Adjacent Grade
First FloorElevations
Foundation Type
Value
Data Needs
Vector Data
SFHA Boundary
Aerial Base
Elevation Data
BFEs
Depth Grids
Buildings
CriticalInfrastructure
Socio-Economic
EconomicModeling
Resiliency
Flood InsuranceMandate
Horizontal In / Out -with add’t data
Business Value
Insurance Ratingfrom Survey FFE
Vertical In/Out –with additional data
Depth of FloodingDepth of Flooding
Structural Risk
Indirect EconomicRisk
Social –Environmental Risk
Risk = f { HPHP, VV, CC, RR }
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Total Risk
Indirect Cost
Total Impact
Cascading Failure
Vulnerability Indices : UVI, SoVI, InVI
Flexible Cartography
Cascading Failure
Mitigation Need
Community Risk
Community Risk Reduction
Industry / Sector Risk
Expandability
NEED for Insurance
Data Needs
Vector Data
SFHA Boundary
Aerial Base
Elevation Data
BFEs
Depth Grids
Buildings
CriticalInfrastructure
Socio-Economic
EconomicModeling
Resiliency
Flood InsuranceMandate
Horizontal In / Out -with add’t data
Business Value
Insurance Ratingfrom Survey FFE
Vertical In/Out –with additional data
Depth of FloodingDepth of Flooding
Structural Risk
Indirect EconomicRisk
Social –Environmental Risk
FloodMapping
IHRM
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Integrated Hazard Risk Management
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Questions