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

2.
6th
International Disaster and Risk Conference IDRC 2016
‘Integrative Risk Management – Towards Resilient Cities‘ • 28 Aug – 1 Sept 2016 • Davos • Switzerland
www.grforum.org
Damage Events – Efficiency of Mitigation Measures
© Jäggli, Klosters
Flood Klosters 2005
Retention Basin realized after flood 2005

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