Risk-based Land-use Guide: Safe use of land based on hazard risk management

Transcription

1 Risk-based Land-use Guide: Safe use of land based on hazard risk management Bert Struik, Laurie Pearce Calgary, September 29, 2015

2 Messages A city-focused land-use guide is available to help reduce risk from hazards Risk reduction is about reducing three fundamental measures: hazard intensity (e.g. engineering guide) exposure to hazard (e.g. land-use guide) vulnerability to hazard (e.g. building code) Risk reduction is long-term planning

3 Risk-based Land-use Guide Primarily for municipal staff And those who work for municipal staff Because they make the zoning and permitting recommendations

4 Risk-based Land-use Guide Facilitators Canadian Platform for Disaster Risk Reduction: Resilient Cities Working Group

5 What is the Guide Risk-based Land-use Guide For the safe use of land, based on hazard risk assessment

6 Risk-based means 1. Focused on land at risk from hazards 2. Shows how you can manage land-use risk

7 Land-use means Only the land-use part of risk management Not building codes Not preparedness Not response Not resilience Mostly hazard and exposure mitigation NRCan

8 Guide means It provides guidance on how to use existing law, regulation, practice, knowledge and the like It is not a code It is adaptable to your situation

9 Which Communities Would Use the Guide The 100 largest communities in Canada Want less hazard losses Land Area: > 160 km2 Population: > 80,000 Income: > Prov. average Buildings: > 20,000 Lifelines: > 1,000 km Assets: > $12B; $4M/day NRCan

10 Risk-based Land-use Guide: Community Profile: Which hazards? All hazards Flood Forest Interface Fire Industrial Accident Liquefaction Landslide Seismic Shaking NRCan Storm Volcanic Eruption

11 Project Status Phase 1: Published as Geological Survey of Canada Open File 7772, March 2015 Search the NRCan GEOSCAN for free download

12 Guide Principles Know your risk Engagement Do with what you have Transparency Balance priorities Proactive Sustained Integrated planning

13 Integration of Municipal Instruments and Risk Management Engaged community Roles and Responsibilities By-laws and Regulations Risk Tolerance Criteria 1:100,000 chance of death Library Trusted experts Archive 1:10,000 chance of death GIS inventory

14 Integration of Municipal Instruments and Risk Management Strategic Plan Official Community Plan Regional Growth Strategy Capital Plan Transportation Plan Emergency Management Plan Archive Development Permit Areas

15 Risk Concepts Live demonstration of the meaning of: Risk = Probability of a negative consequence to something you care about Consequence Hazard Hazard event Hazard event magnitude Exposure to hazard event Vulnerability to hazard event Demonstration involved crushing of coffee cups by foot stomping (stomping is hazard event)

16 Establish Your Needs

17 Define Hazard Potential

18 Identified What Could be Harmed

19 Assess the Risk and Make Land-use recommendation Determine the municipal risk Set priorities for risk management For high risk zones Conduct risk assessment (6 step) Consider mitigation alternatives Public input (mitigation non-standard) Mitigation benefit analysis Make recommendation (development and/or zoning) ility b ba o r P 4 5

20 Monitor Decision Re-evaluate existing risk Actual cost-benefit Monitor against risk tolerance criteria Verify risk management Review operations Review strategic plans Review decision criteria Change laws? 6

21 Risk Reduction is Long Term Planning A Calgary land-use flood risk reduction solution: reduce the exposure of your most important assets Over 150 years; move your business and industrial zones to high ground

22 Messages A city-focused land-use guide is available to help reduce risk from hazards Risk reduction is about reducing three fundamental measures: hazard intensity (e.g. engineering guide) exposure to hazard (e.g. land-use guide) vulnerability to hazard (e.g. building code) Risk reduction is long-term planning

23 Background on making the Risk-based Land-use Guide Risk-based Land-use Guide Publication Download path=geoscan/downloade.web&search1=r= Contact