Hazard Risk and Vulnerability Assessment in the London
Hazard, Risk, and Vulnerability Assessment in the London Borough of Hounslow using GIS Adam Lemoine Alison Marotta Dan Lipson Scott Lonergan
Presentation Overview: el ss Ru l S qu n s a e ar n sio us sc Di d d ns an io n at sio nd lu e nc mm Co co Re ng di Fin ds ho et M w vie Re e ur at er n io ct du ro nt l ra nt e C w t I ec oj Lit Pr lo ns u Ho
Project Introduction: Civil Contingency Act 2004
Literature Review: Key Terms Hazards- Condition, event, or circumstance that could lead to or contribute to an unplanned or undesirable event Vulnerable Persons- Population possessing certain characteristics that make them more susceptible to harm and more likely to have a slower recovery Risk- The uncertainty of outcome, whether positive or negative, of actions and events. It is the combination of likelihood and impact.
Literature Review: Hazards
Literature Review: Hazards Impact 5 4 3 2 1 1 2 3 4 5 Likelihood
Literature Review: Hazards
Literature Review: Vulnerability Overall Vulnerability Physical Vulnerability Social Vulnerability Exposure Community Resilience Resistance Concentration of Vulnerable Characteristics
Literature Review: Vulnerability Factor Description Cutter et al. Army Corps CRN Dwyer et al. Rød et al. Socioeconomic status (income, political power, prestige) Lower socioeconomic status increases vulnerability due to a lack of available resources. X X X Gender Due to statistically lower wages and family responsibilities, women are more vulnerable. X X Race and ethnicity Ethnicity can create communication and cultural barriers that increase vulnerability. X X
Literature Review: Vulnerability
Methods: • Consulted with CPU members Determined Needs of the CPU Collected and Mapped Data • Identified, collected, and mapped both hazard sites and vulnerable characteristics • Final maps were analyzed and explained Interpreted Maps
Results and Discussion: • Hazard Maps • 13 Individual Social Vulnerability Factors Mapped • 4 Composite Maps • Combinations and Practical Uses of Risk Maps
Findings: COMAH Sites Map A B C D E
Findings: Petrol Stations Map
Findings: Flooding Map Zone 3 Zone 2 Zone 1 Flood Defenses
Findings: Flooding Map Zone 3 Zone 2 Zone 1 Flood Defenses
Findings: Flooding Map E A C A- Zone 3 w/o defenses B B- Zone 3 with defenses D C- Zone 2 w/o defenses D- Zone 2 with defenses E- Zone 1
Findings: Composite Hazard Map
Findings: Individual Social Vulnerability Factors 13 Factors Chosen In Total: • Age (Elderly and Youth) • Population Density • Disability and Long Term Health Problem • Education • Gender • General Health • English Proficiency • Migration • Household Occupancy • Occupation • Renters • Unemployment • Vehicle Ownership
Findings: Individual Social Vulnerability Factor Individual Scoring
Findings: Individual Social Vulnerability Factor Percentile: 50 75 90 95 Low Vulnerability High Vulnerability Z Scores Z Score: 0. 6745 1. 2816 1. 6449
Findings: Individual Social Vulnerability Factor Migration
Findings: Pairing Social Vulnerability Factors Household Occupancy Migration
Findings: Pairing Social Vulnerability Factors English Proficiency Occupation
Findings: Pairing Social Vulnerability Factors Unemployment Disability
Findings: Pairing Social Vulnerability Factors English Proficiency Migration
Findings: Composites • Public Health • Evacuation • Minority Status • Economic Stability
Findings: Public Health Contributing Factors: • General Health • Disability/ Long Term Health Problem • Age • Population Density
Findings: Minority Status Contributing Factors: • Migration • Gender • English Proficiency
Findings: Evacuation Contributing Factors: • Age • Population Density • Disability/ Long Term Health Problem • Gender • English Proficiency • General Health • Migration • Household Occupancy • Vehicle Ownership
Findings: Economic Stability Contributing Factors: • • Education Gender English Proficiency Household Occupancy Occupation Renting Unemployment Vehicle Ownership
Findings: Combinations and Practical Uses
Findings: Combinations and Practical Uses COMAH site Petrol Station Fire Brigade Police Station Evacuation Center
Findings: Combinations and Practical Uses Hospital COMAH site General Practices Petrol Station Fire Brigade Police Station Evacuation Center
Conclusions and Recommendations:
Conclusions and Recommendations: COMAH site Petrol Station Fire Brigade Police Station Evacuation Center
Conclusions and Recommendations: COMAH site Petrol Station Fire Brigade Police Station Evacuation Center
Acknowledgements: • Sponsor- Twm Palmer • CPU- Timothy Arnold, Fiona Hodge, and Jyoti Sapkota • Advisors- Dominic Golding and Patricia Stapleton • Special thanks to Mike Mair, Richard Davill, Khuram Awan, Vinesh Govind, Michael Lewis, and Ben Pearkes
Any Questions?
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