6th International Disaster and Risk Conference IDRC 2016 Integrative Risk Management - Towards Resilient Cities. 28 August - 01 September 2016 in Davos, Switzerland
Resilient Cities, SMEs, Communities and Infrastructure Four Pioneering Projec...
Tools for Assessment and Mapping of Natural Hazard Risks, Michael BRUENDL
1. 6th
International Disaster and Risk Conference IDRC 2016
‘Integrative Risk Management – Towards Resilient Cities‘ • 28 Aug – 1 Sept 2016 • Davos • Switzerland
www.grforum.org
Tools for Assessment and Mapping
of Natural Hazard Risks
Michael Bründl and Linda Zaugg
WSL Institute for Snow and Avalanche Research SLF
Davos, Switzerland
3. 6th
International Disaster and Risk Conference IDRC 2016
‘Integrative Risk Management – Towards Resilient Cities‘ • 28 Aug – 1 Sept 2016 • Davos • Switzerland
www.grforum.org
Risk assessment
and evaluation of
the effectiveness
of mitigation
measures
4. 6th
International Disaster and Risk Conference IDRC 2016
‘Integrative Risk Management – Towards Resilient Cities‘ • 28 Aug – 1 Sept 2016 • Davos • Switzerland
www.grforum.org
Risk assessment
and evaluation of
the effectiveness
of mitigation
measures
5. 6th
International Disaster and Risk Conference IDRC 2016
‘Integrative Risk Management – Towards Resilient Cities‘ • 28 Aug – 1 Sept 2016 • Davos • Switzerland
www.grforum.org
Risk assessment
and evaluation of
the effectiveness
of mitigation
measures
6. 6th
International Disaster and Risk Conference IDRC 2016
‘Integrative Risk Management – Towards Resilient Cities‘ • 28 Aug – 1 Sept 2016 • Davos • Switzerland
www.grforum.org
EconoMe-Develop
• Benefit-Cost-Analysis (BCA) has become a recognized method
for determining the economic efficiency of investments and
mitigation measures for natural hazards.
• Swiss Federal Office for the Environment initiated the
development of EconoMe, an operational software for
prioritising mitigation measures with BCA.
• EconoMe-Develop is the research and development version of
EconoMe.
• Calculation factors and assumptions can be adapted to
specific risk situations making the tool suitable for assess-
ment of various natural hazards worldwide.
7. 6th
International Disaster and Risk Conference IDRC 2016
‘Integrative Risk Management – Towards Resilient Cities‘ • 28 Aug – 1 Sept 2016 • Davos • Switzerland
www.grforum.org
EconoMe-Develop:
www.econome-develop.admin.ch
• The method, calculation factors, equations etc. are
available on the system.
• Available in German, English and French
User
Support
Choice for
language
Calculation factors,
equations, basics.
8. 6th
International Disaster and Risk Conference IDRC 2016
‘Integrative Risk Management – Towards Resilient Cities‘ • 28 Aug – 1 Sept 2016 • Davos • Switzerland
www.grforum.org
Import Export
• The workflow follows the risk concept for Natural Hazards.
• Interface for import and export of data via XML, e.g. import of
damage potential from GIS; export of risks to GIS.
EconoMe-Develop: Workflow
9. 6th
International Disaster and Risk Conference IDRC 2016
‘Integrative Risk Management – Towards Resilient Cities‘ • 28 Aug – 1 Sept 2016 • Davos • Switzerland
www.grforum.org
• definition of number
of scenarios
• definition of return
periods
• uncertainty of
calculation factors
• exposure situations
• number of intensity
classes
• mean, min und max of
damage susceptibility,
• and lethality values.
EconoMe-Develop: Step 3 Hazard Analysis
10. 6th
International Disaster and Risk Conference IDRC 2016
‘Integrative Risk Management – Towards Resilient Cities‘ • 28 Aug – 1 Sept 2016 • Davos • Switzerland
www.grforum.org
EconoMe-Develop: Step 6 and 7: Consequence analysis
• damage and risk to
each object
• evaluation of societal
and individual risk
11. 6th
International Disaster and Risk Conference IDRC 2016
‘Integrative Risk Management – Towards Resilient Cities‘ • 28 Aug – 1 Sept 2016 • Davos • Switzerland
www.grforum.org
EconoMe-Develop: Step 12: Benefit-Cost-Ratio
Calculation with uncertainty band
• Calculation of risk with
uncertainty band (min,
mean, max)
• Risk before measures and
with consideration of
measures are displayed
• Risk reduction of each
measure
• Benefit-Cost-Ratio of
measures
• BCR > 1,
economically viable
12. 6th
International Disaster and Risk Conference IDRC 2016
‘Integrative Risk Management – Towards Resilient Cities‘ • 28 Aug – 1 Sept 2016 • Davos • Switzerland
www.grforum.org
RAMMS::RISK
• RAMMS Software for modelling gravitational processes for
hazard mapping (http://ramms.slf.ch/ramms/)
– RAMMS::AVALANCHE
– RAMMS:DEBRIS FLOW
– RAMMS::ROCKFALL
• RAMMS::RISK was developed as additional module for
visualizing and interactive exploring natural hazard risk
• … is stand-alone and requires no GIS license
• … is not restricted to input from RAMMS
• … can handle point (e.g. buildings) and line objects (roads,
railways)
• RAMMS::RISK is work-in progress
13. 6th
International Disaster and Risk Conference IDRC 2016
‘Integrative Risk Management – Towards Resilient Cities‘ • 28 Aug – 1 Sept 2016 • Davos • Switzerland
www.grforum.org
Input data for RAMMS::RISK
RAMMS Simulation
(ASCII-File)
Building data (CSV or SHP)
Damage susceptibility
Calculation and visualization of
societal and individual risk
14. 6th
International Disaster and Risk Conference IDRC 2016
‘Integrative Risk Management – Towards Resilient Cities‘ • 28 Aug – 1 Sept 2016 • Davos • Switzerland
www.grforum.org
RAMMS::RISK: Classification of object attributes and
results
15. 6th
International Disaster and Risk Conference IDRC 2016
‘Integrative Risk Management – Towards Resilient Cities‘ • 28 Aug – 1 Sept 2016 • Davos • Switzerland
www.grforum.org
RAMMS::RISK: Selective display of results
Show buildings,
where individual
risk >1 x 10-4
16. 6th
International Disaster and Risk Conference IDRC 2016
‘Integrative Risk Management – Towards Resilient Cities‘ • 28 Aug – 1 Sept 2016 • Davos • Switzerland
www.grforum.org
Take home messages
• Risk assessment and evaluation of economic efficiency of
measures using BCA has become essential for decision-
making.
• EconoMe-Develop is a flexible tool for a risk-based
assessment of the effectiveness of mitigation measures.
• RAMMS::RISK allows for spatial visualization of natural hazard
risk and supports interactive risk exploring.
Contact: bruendl@slf.ch
Editor's Notes
Good afternoon Ladies and Gentlemen, thank you for coming to my talk
I also like to acknowledge the work of my co-author, who was heavily involved in the work I‘m going to present you today.
During the last decade we observed several severe events in Alpine countries and worldwide, which caused billions of damage. The event with the highest damage during the last decade in Switzerland was the flood in August 2005 with damage of 2.9 billion Swiss Francs, which is about 2,7 billion Euro. After this event a flood protection programme was initialized and among other measures, this rentention basin was realized.
Since 2008 each mitigation project, which requires subsidisation from the Federal Office for the environment has to be analysed with respect to its benefit-cost ratio.
The basis for a benefit-cost-analysis is a risk-based assessment of the effectiveness of planned mitigation measures.
Explain risk analysis
The calculated risks are compared with safety goals. If they are exceeded, measures have to be taken.
The planned measures have to be evaluated regarding their effectiveness, which the ability to reduce the risk and costs of this measures. If measures reduce individual risk below a defined threshold and the BCR is above 1 and ecological and societal criteria are fulfilled, the project can be realized.
In the following I‘d like to present two tools, which base on this concept.
The Federal Office has developed the software tool EconoMe for this assessment.
In addition, also the tool EconoMe-Develop was developed, which allows an adaptation of calculation parameters to a specific situation, which is not possible with the operational tool EconoMe, which is used as a decision-making tool for subsidisation.
This makes the tool flexible enough, so that the tool can also be used for assessments worldwide.
This slide shows the start page after the login.
Several languages
documentation
User support
Working steps, possibilities for import and export of
hazard assessment
Damage potential
Exposure data
Overlay of intensity maps and damage potential, i.e. consequence analysis
This means that geographical data can be handled in a GIS and data can be exported and then imported for risk assessment in EconoMe-Develop.
After the assessment, data can be exported from EconoMe-Develop and imported to a GIS for visualisation.
The second tool i‘d like to present is RAMMS::RISK.
So what is RAMMS? RAMMS stands for „rapid mass movements“ and denotes a software for modelling gravitational flows like snow avalanches, debris flows and rock falls.
RAMMS::RISK was developed …
So what are the ingredients, you need for an analysis with RAMMS::RISK
RAMMS Simulation
Data of damage potential, e.g. buildings, roads or railway
Values for damage susceptibility
Classification of damage potential or calculation results, e.g. here the total loss for this situation in three categories
Here, selection of objects by certain criteria, e.g.
Show me all buildings, for which the individual risk to persons is greater than 1 x 10-4