1. Part III: Tools for Risk Assessment RADIUS Tool - Simple Damage Estimation Software -
Dr. Carlos Villacis

2. Software Purposes
To facilitate preliminary estimation of earthquake damage in developing countries
To be used by city administrators and general public, not for professional purposes
To assist in decision making
To raise awareness of
earthquake risk

3. Software Characteristics
Goal: To make it as useful and accesible as possible
Widely available platform (runs on MS-Excel)
Simple, user-friendly
Help Function/User Instructions are included
Narrated Demonstration Video is included
NOT a GIS(Geographic Information System) type of program
A GIS Sample is added for comparison (GIS is a very useful risk-assessment tool)

4. Program uses commonly available city information
Input Data
Program uses commonly available city information
Shape of target region (entered as a grid)
Population and its distribution
Building Inventory and its distribution
Ground Characteristics (Soil conditions)
Lifelines information
Choice of Scenario Earthquake and its parameters

5. Output Ground Shaking Distribution (PGA or MMI Intensity)
Building damage
Lifelines damage
Human Impact (number of deaths and injuries)
Summary Tables and Thematic Maps showing the results

6. Example of Data Input Process
Shape of target region input as a grid
Example for Kobe city

7. Example of Data Input Process
Specify the City Area using Excel Mesh
Input Total Population and Building Counts

8. Example of Data Input Process
Input Area ID and Area Name

9. Example of Data Input Process
Specify the Mesh Weight (building, population distribution)

10. Example of Data Input Process
Input Mesh Weight to distribute the building and population count

11. Example of Data Input Process
Specify Ground Characteristics (Soil conditions)

12. Example of Data Input Process
Input Local Soil Characteristics

13. Example of Data Input Process
Specify Building Inventory by Area
Percentage of 10 Building Classes in each Area

14. Example of Data Input Process
Input Building Inventory by Area
Buildings and Population are distributed by Mesh Weight

15. Example of Data Input Process
Specify and Enter Scenario Earthquake

16. Output Examples
Building Damage Distribution

17. Tool Applications Understanding of cities’ earthquake risks
Estimation of impact of past well-known earthquakes
Estimation of impact of any number of possible future earthquakes
Delineation of planning policies by decision makers
Education and risk awareness of the public

18. Incorporating DRM in Urban Planning
Katmandú
Tijuana
Dehradun
Antofagasta

19. Working with local organizations
Training to Kathmandu City officers
Working session with Tijuana planners
Public seminar in Antofagasta to discuss project findings

20. Results
2007
2003
2012
2022

21. Developing solutions…
CRÍTICO
ALTA
MEDIA
BAJA
LEVEL RISK - Antofagasta -Chile

22. Tangible Products Seismic scenarios Development plans
Local Capacity Building

23. Tangible Products Mitigation Options Cost= $ Cost= $$$ Cost= $$
Risk Reduction Potential
30%
60%
90%
Cost= $
Cost= $$$
Cost= $$

24. Tangible Products Investing to reduce Tijuana’s risk
Curve e = Investing $15 Mill. in 25 years

25. END
Thank you for your Attention.
Thank you for your attention.