GLOBAL
BLUEPRINTS FOR CHANGE
SUMMARIES
OF THE RECOMMENDATIONS FOR
THEME
B: BUILDING TO WITHSTAND THE DISASTER AGENTS OF NATURAL AND ENVIRONMENTAL HAZARDS
1.
Improving Hazard-Characterization Models and Maps
2.
Integrated Risk Assessment of Civil and Environmental
Infrastructure
3.
Reducing Vulnerabilities in New Low-rise Construction [with
Consideration of Environmental Factors]
4.
Improving Inspection Technology for Low-Rise Construction [with
Consideration of Environmental Factors]
5.
Improving Vulnerability and Risk Assessments for Communities
6.
Improving Vulnerability and Risk Assessments for the
Environment
7.
Improving Vulnerability and Risk Assessments for Mega cities
8.
Managing Unacceptable Risk through Improved Mitigation and
Preparedness Models 9.
Risk
Control for Energy and Chemical Installations
10.
Next
Generation of Building Codes and Lifeline Standards
11.
Improving
Resiliency of Transportation Systems
12.
Improving
Resiliency of Large Dams
13.
Improving
Understanding of the Interaction Between the Built Environment and
Natural Systems
THEME B: BUILDING TO WITHSTAND THE DISASTER AGENTS OF NATURAL AND
ENVIRONMENTAL HAZARDS
Preamble:
The topics, scope of work, and a summary of the recommendations of the
Global Blueprints for Change for this theme are provided below.
Topic
1: Improving Hazard-Characterization Models and Maps: This
Blueprint for Change will provide guidance to communities throughout
the world that are seeking cost-effective ways to improve their
capability to characterize and map in space and time the disaster
agents generated by natural and environmental hazards.
Recommendations
for Overcoming Barriers to Implementation:
·
United States: Jim Preacher and John Findley
On the basis of our national mandate to produce
a wide range of state-of-the-art, digital maps for use by many
different sectors of the public and extensive experience in making
them, we recommend implementation of
the actions outlined below. Out
vision is to apply technology in a way that will allow any Nation
to proceed from
protection against hazards to the management of risk through the
integration of risk prevention into sustainable development
- Every Nation should
improve
their hazard-characterization
models, spatial data, and hazard maps so that all their
communities can move towards
become resilient to the effects of natural and
environmental hazards, reducing the compound risks they pose to
social and economic vulnerabilities within modern societies.
- Institute links between and
among government and non-government organizations; volunteer
organizations,; geographic regions, scientists; and the private
sector.
- Enable communities to
understand the scale and importance of natural hazards and the
historical and potential losses associated with each hazard.
- Emphasize the importance of
natural disaster reduction for sustainability of economic, social
and cultural aspects of communities and the role of safe
infrastructure in achieving such a goal. Facilitate the broad
dissemination of current state of knowledge and advances in its
application.
- Develop and use rational
and systematic methods of hazard and risk assessment and
management at local, regional, national and international levels.
- \Educate the stakeholders
and decision makers of the community through ongoing dissemination
of information to the community and continuing education.
·
Canada/International: Tad Murty
We
recommend that every nation undertake sustained, long-term actions
having the goal of deepening the understanding of the occurrence and
consequences of natural hazards in the broadest sense (i.e., on local
to global scales) and from a process oriented approach in order to
foster the development and implementation of realistic mitigation and
intervention strategies. Climate change is the most important process that
affects practically almost all the geophysical hazards in a very
direct manner and even some of the geological hazards in an indirect
manner. Even though nowadays, the world's “climate change” and
“greenhouse warming” are almost synonymous to most people, in
reality this is not the case. Climate
change occurs due to natural reasons and is continuously happening
since the evolution of the earth’s atmosphere several hundred
million years ago and will continue to occur as long as the earth’s
biosphere (atmosphere-oceans-land) exists.
The
global effort should focus on characterizing the following hazards and
their physical effects
1.
Global Weather Systems
2.
Inter-Tropical Convergence Zone (ITCZ)
3.
Climate Change
4.
Greenhouse Warming
5.
Extra-Tropical Cyclones (ETC’s) or Winter Storms
6.
Tropical Cyclones (TC’s)
7.
Mobile Polar High’s (MPH’S)
8.
Monsoons
9.
ENSO
10.
Meso-Scale and Local Wind Systems
11.
Hydrologic Cycle
12.
Floods
13.
Droughts
14.
Desertification
15.
Storm Surges
16.
Coastal Zone Management (CZM)
17.
Sedimentation
18.
Tides
19.
Land Subsidence/Uplift
20.
Sea Level Rise (SLR)
21.
Tsunamis due to earthquakes, volcanic eruptions, land slides,
and asteroid impacts
·
United States: E. V. Leyendecker
We recommend that every earthquake-prone nation develop probabilistic maps
of the earthquake ground shaking hazard and engage in the long-term
process of imp0lementiation in terms of urban and land-use plans and
modern building codes that incorporate options for seismic zonation
and performance standards. The
goal should be to close gaps in knowledge about local site- and
region-specific source, path, and site effects and gaps in
implementation. The gaps
in knowledge are the main barriers to going beyond intensity and peak
acceleration maps to the construction of spectral response maps as a
basis for siting, design, and construction.
The gaps in implementation are the main barriers to reduction
of vulnerability of individual elements of the built environment,
which prevent the communi8ty from becoming disaster resilient.
·
Czech Republic: Dana
Prochazkova
With
respect to induced seismicity, we recommend that:
- All
possible means be used to promote sustainable development and
protection of the environment in all countries, using the United
Nations' platform to warn of potential threats from technological
hazards as well as natural hazards and to provide guidance on ways
to avoid their consequences.
- Site
investigations are conducted before all construction to ensure
adequate protection of the environment.
These investigations should consider the possibility of
technological activities of humankind triggering earthquakes,
which can be as large as natural earthquakes and have comparable
adverse consequences,
- Projects
involving water reservoirs, mining activities, fluid injection
into rock, and fluid withdrawal from rock be evaluated and
monitored with regard to their potential for inducing earthquakes.
- Ongoing
research is carried out to deepen understanding of the
consequences of human interventions with the environment and to
identify technologies that will minimise the impacts.
·
France and the United
States: Bagher Mohammadioun and Walter Hays
On
the basis of progress made during the past decade and the urgent need,
we recommend:
1. Multinational case studies to document the evolution of seismic
zonation as a policy tool for reducing vulnerabilities in communities
that are located in regions of the world characterized by
"low-probability of occurrence--high probability of devastating
consequences" earthquakes.
A
typical case history should develop the following information:
1. Assessment of the Community's hazard environment
·
Proximity of the causative fault
·
The potential for the causative fault to rupture the
surface.
·
The potential for amplification of ground shaking in
selected period bands due to the
physical properties of the
near-surface soil and rock.
·
The potential for liquefaction, lateral spreading, and
landslides
·
The potential for tsunami flood wave run up.
2. Assessment of the "as built condition" and relative
vulnerability of individual elements of the
community's inventory of
buildings and infrastructure (i.e., the built environment)
·
Older residential and commercial buildings and
infrastructure constructed of unreinforced masonry
or any other
construction materials having inadequate resistance to the lateral
forces of ground
shaking that are expected, or if they were
constructed at one time to conform with a seismic code
or standard,
are now considered to be outdated and inadequate as a result of a risk
assessment by
engineers.
·
Older, non-engineered residential and commercial
buildings that have little or no lateral resistance
to ground shaking
and are vulnerable to fire following an earthquake.
·
New buildings and infrastructure that have not been
sited, designed, and constructed with
adequate consideration of
modern, state-of-the-art building regulations, lifeline standards, and
zoning ordinances.
·
Buildings and lifeline systems sited in close proximity
to an active fault system. or on encased
within poor soils that either
enhance ground shaking or fail through permanent displacements (e.g.
liquefaction, lateral spreading, falls, topples, slides, and flows of
soil and rock), or in low-lying or
coastal areas that are susceptible
to tsunami flood wave run up.
·
Modern business and government buildings of poor design
and construction quality, having
irregularities in plan and elevation
and discontinuities in mass, strength, and stiffness.
·
Schools and other “safe haven” facilities that have
been built of materials having low resistance to
lateral forces.
·
Hospital facilities constructed with materials having
low resistance to lateral forces and with
irregularities in plan and
elevation and discontinuities in mass, strength, and stiffness.
·
Communication facilities and control centers that are
concentrated in one or two of the most
hazardous areas instead of
being widely distributed geographically.
·
Bridges and viaducts having outdated designs and that
are likely to collapse or be rendered
unusable by ground shaking,
ground failure, and surface faulting.
·
Underground utilities providing the essential community
services of supply and disposal for
electricity, gas, water, and
sewage that are likely to fail or be rendered unusable by ground
failure.
·
Ports and harbors that are in locations susceptible to
regional tectonic deformation and ground
failure.
3. Assessment of the Community's implementation of existing public
policies on mitigation and intervention strategies
·
Seismic hazard and seismic zonation maps.
·
Minimum vulnerability criteria for existing buildings
and lifelines.
·
Codes, standards, and performance standards for new
buildings and lifelines.
·
Land-use and urban development plans.
·
Legislative mandates for reconstruction of buildings and
lifelines after an earthquake disaster.
·
France: Gerard Brunot
We
recommend implementation of the actions outlined below.
1. A comprehensive information
system (IS) should be developed for application on various
scales.
2. An IS should
met the needs of a wide variety of users and include:
·
The temporal and spatial limits of geophysical data for
each given phenomenon.
·
Past events, including spatial, temporal and physical
information.
·
Hazards, according to different scenarios (e.g.
decennial and centennial discharge
for floods)
·
Risk data, including assessments of the relative
vulnerability of elements of the built
environment.
3. All existing administrative or public policy documents such as:
zoning regulations, and,
depending on
the countries, ad hoc restrictions to development and building permits, and the
existent ordinances
that are related to natural hazard zoning on a
scale of 1/25000).
4. IS specialists should develop realistic
modeling functions. The
users should be provided with
opportunities ranging from
basic statistical analysis to sophisticated models capable of
producing a
virtual event depending on initial conditions. As far as
natural hazards mapping is concerned, it is
quite easy to see what it
practically involves, but quite difficult to implement this kind of
function.
The user must
be an expert of the topic if "blind use" is to be prevented.
5. IS
specialists should use models
to
"precalculate"
a discrete set of virtual natural events as
outputs of models whose
inputs would be the meteorological or geological parameters of natural
hazards with consideration of different scenarios.
6. IS
specialists should deal with the controversy associated with different
models. As models are
open
to controversy as all scientific activity and as, for reasons
specific to earth sciences, this controversy
might last some more
decades it is often admitted that several models may possibly be used
to
describe a given phenomenon. One result of this admission is any
valuable IS should ideally provide
access to alternative models,,
which bring out different output vectors corresponding to the same
input vector. pr
7. IS
specialists should evaluate the strengths
and weaknesses of a
Decision Supporting System
(DSS), which
might lead to significant errors in those cases where models
must be oversimplified in
comparison with reality..
·
Israel: Avi
Shapira et al
We recommend implementation of the actions outlined below in the Middle
East.
1. Earthquake hazard assessments
for building codes in the Middle East.
2. Production of a unified earthquake catalog including the
unification of magnitude determinations.
3. Compilation of geological, geophysical and seismological data
for the definition of the seismogenic
zones and the temporal and
spatial characterization of seismicity.
4
Typification of buildings and their generalized dynamic
characteristics under seismic loading.
5
Site response investigations and characterizations.
6
Enhancement of seismic monitoring with emphasis on acquisition
of strong motion data.
7.
Implementation of stochastic methods for estimating ground
motion parameters.
8.
Development of a computer code to provide reliable assessments
of the earthquake hazard in terms of
uniform-hazard, site-specific,
spectral-accelerations.
9.
Mapping of earthquake ground
shaking hazard parameters in terms of spectral accelerations as
well as
peak ground acceleration.
·
Mediterranean Region: Maria-Jose Jiminez, et al
We recommend
implementation of the actions outlined below on the basis of results
produced in the framework
of the SESAME program. Under
the aegis of SESAME, a
preliminary unified seismic source model was created for the
Mediterranean region and used to construct the first suite of
preliminary probabilistic
ground shaking hazard maps for the entire Mediterranean region.
1. The results,
although preliminary
should be used in as many national and regional applications as
possible. The final unified hazard modeling for the whole
Mediterranean will contribute to the
establishment of a regional
seismic hazard framework for the region in terms of peak ground and
spectral acceleration from which seismologists, geologists and
earthquake engineers can benefit. The
compiled data bases (e.g. source
zoning, attenuation, seismic activity parameters) for the whole
Mediterranean domain and the homogeneous hazard computation scheme
constitute a unique tool
through which relevant information for future
regional research studies can be provided.
2. Ongoing activities should focus on improving the final unified
hazard model for the Mediterranean by
focusing on increasing the
understanding of specific complex geographic areas.
3.
Attention should be given
to the SESAME regional hazard assessment procedure to allow for
non-isotropic ground motion attenuation.
4.
The results should be
used to reevaluate
the ground shaking hazard in accordance with various
different criteria for sub-regions or for the Mediterranean
region, especially after the occurrence of
future damaging earthquakes
·
Taiwan: Ming-Hsi Hsu
We recommend implementation of the actions outlined below because Taiwan
is located at the intersection of the Euro-Area continent and the
Pacific Ocean, and experiences heavy storms induced by typhoons or
tropical cyclones. These
often cause serious disasters during the summer and fall.
For example, Typhoons Zeb and Babs resulted in serious overbank
flooding along the Keelung River in 1998. In order to have an
integrated approach for natural hazards mitigation, the National
Science Council (NSC) in Taiwan approved the operation of the National
Science and Technology Program for Hazards Mitigation (NAPHM) in 1998.
- Implement the objectives
of the NAPHM program. The
objectives are to combine the efforts of
various government and private agencies, to promote the
upstream and downstream research, to integrate the research
results for practical applications, and to develop methodologies
for hazard potential analysis, risk assessment, and disaster
scenario simulation.
- Improve the capability of
communities to withstand flood disasters. For example, regulation
policy can be ruled to ban land development of areas with high
vulnerability to hazards. Emergency
warning systems and response measures can be constructed and
planned with information characterized in hazard potential maps.
Structural measures can be designed with better capacities
to sustain disaster demolition by locating areas of having high
disaster risks from hazard maps.
Flood insurance rate-zone maps can be generated based on
regional flood vulnerability from inundation potential maps.
- Construct inundation
potential maps that will provide valuable information for
precaution, regulation, management, and mitigation measures
against flood disasters.
Topic
B.2: Integrated Risk Assessment of Civil and Environmental
Infrastructure: This Blueprint for change will provide guidance
for improving integrated risk assessments of civil and environmental
infrastructure in communities throughout the world having sustainable
development as a goal.
Recommendations
for Overcoming Barriers to Implementation:
·
United States: Craig
Taylor and Erik Vanmarke
We recommend implementation of the actions outlined below as a
way to advance the use of evaluation
procedures with their inherent
uncertainties and ambiguities in the selection of criteria,
communication of
technical results, and implementation of loss
reduction measures.
1. Identify issues and new approaches for defining acceptable risk for
applications involving the intersection
of natural hazards and
community infrastructure (i.e., lifeline systems).
The elements for evaluation
should include:
· Uncertainties in modeling earthquake occurrences
· Uncertainties in modeling soil amplification
·
New vulnerability model development and validation
procedures
·
Vulnerability modeling in practice
· Uncertainties in pipeline vulnerability modeling
· New model developments for electric power systems
· Model validation for and uncertainties in estimating
higher order economic losses
· Risk and decision procedures
·
Financial aspects of these risk and decision procedures
·
Risk communication for ports and airportsAcceptable risk
procedures for a major port
·
The implementation process for a major culinary water
system
·
Regulating marine oil terminals for major natural
hazards threats
·
Risk-based performance criteria for components
·
Australia: Robin
Chowdhury, Phil Flentje, and Chit Ko Ko
We
recommend implementation of the actions outlined below.
1. Enabling communities to understand the scale and
importance of geohazards (floods, landslides, and
earthquakes) and
the historical and potential losses associated with each hazard
2. Emphasizing the importance of natural disaster
reduction for sustainability of economic, social and
cultural
aspects of communities and the role of safe infrastructure in
achieving such a goal.
3. Facilitating broad dissemination of current state of
knowledge and advances in its application.
4. Development and use of rational and systematic methods
of hazard and risk assessment and management
at local, regional,
national and international levels.
5. Education and dissemination of information to the
community should be emphasized.
6. Technical solutions should be modern and kept
up-to-date as research and development helps evolve new
tools and
techniques.
7. Policy should be revisited and thoroughly reviewed and
updated at regular intervals and maps should be
updated using the
versatility of GIS-based systems.
·
Moldavia: Anton Zaicenco
and Vasile Alkaz
We
recommend implementation of the actions outlined below to improve the
seismic safety of the Republic of
Moldavia, which is affected most
often by earthquakes generated in the Vrancea seismic zone.
1.
A program of seismic zonation.
2.
A program for inventory, classification, and vulnerability
assessment of the existing elements of the
built environment.
3.
Localization of dwelling buildings with high risk of collapse
for the magnitude of the earthquake of
order Mw=7.0.
4.
The program of expertise and, according to necessities,
development of design solutions on
reinforcement of typified
structures, when the as built condition is
below the accepted level of
safety demands.
5.
Elaboration of the insurance policy with stimulating character
of measures for reducing seismic risk
by the efforts of the
building’s owner.
6.
A program for rapid intervention in case of a strong earthquake
occurrence.
7.
Establishing procedures and format for cooperation and
collaboration among different local,
regional, and international
groups.
8.
Enhancing professional competencies for local, regional,
national, and international activities.
· Taiwan:
Meei-Ling Lin
We recommend
implementation of the actions outlined below to protect people and
property in Taiwan from the consequences of debris flows. Due to the
steep terrain and fragile geological conditions in Taiwan, heavy
rainfalls carried by typhoons often cause severe slope failure and
large volume debris flows.
1.
It is strongly recommended that communities having sustainable
development as a goal develop a hazard mitigation and management
program based on integrated risk assessment models.
2.
An emphasis should be placed on understanding and mitigating
debris flows.
4.
For debris flow, the following basic data should be collected
and incorporated in the integrated risk assessment models:
·
The environmental data of geological factors,
hydrological factors, and geomorphic factors.
·
Detailed socioeconomic data on population, land use,
production rate, buildings, and traffic conditions, etc.
·
Precipitation data and statistic analysis to obtain the
scale and shape of rainfall record for risk assessment.
Topic
B.3: Reducing Vulnerabilities in New Low-rise Construction [with
Consideration of Environmental Factors]: This Blueprint for Change will provide
guidance to communities throughout the world that are seeking
cost-effective ways to reduce vulnerabilities to all future new
low-rise buildings constructed in the community.
Recommendations
for Overcoming Barriers to Implementation:
·
United States: H. S. Lew and Walter Hays
We
recommend implementation of the actions outlined below to deal with
the vulnerable inventory of
a
very
large inventory of existing dwellings and low-rise commercial
buildings in the
United States, a
very large
inventory of existing dwellings and low rise commercial
buildings.
where
insurance is part of the solution. The
consensus is that holistic solutions are the best ways to meet the
challenge faced by insurers and all communities throughout the nation
as they seek to reduce well-known
vulnerabilities.
1.
Start reducing the well-known vulnerabilities in the roofs,
envelopes, and structural and foundation systems of existing
residential and commercial structures.
2. Devise
"Thinking out of the box” solutions to reduce vulnerabilities
in existing residential and
commercial structures that integrate research, development, and
professional education with improved professional practices and public
policies.
3. Prevent
the same vulnerabilities in the roofs, envelopes, and structural and
foundation systems of
new residential and commercial structures in the planning
stage.
4. Develop
a rating system for existing housing and commercial buildings that
will help to assess their
“as is” condition and provide a sound basis for decisions about
retrofit.
5.
Develop
educational programs and training to increase the professional
capacity of building sub-contractors and building inspectors.
6.
Conduct
outreach programs to promote and increase awareness in all sectors of
the public of the problems posed by natural hazards and the need for
sustained application over time of cost-effective, loss-reduction
measures.
·
Mexico: Zobin Vyacheslav and J.
Francisco Ventura-Ramírez
We
recommend the actions outlined below to deal with vulnerable low-rise
buildings in Mexico.
1. What should we do?: We should prepare the recommendations for municipal
and state governments
with our propositions for the reconstruction of
old part of city.
2.
How we might do it?: We should study
the vulnerability of old low-quality masonry within the modern
low-rise city and estimate its hazard for the new constructions and
the whole city.
Topic
B.4: Improving Inspection Technology for Low-Rise Construction
[with Consideration of Environmental Factors]: This Blueprint for Change will
provide guidance to communities throughout the world
that are seeking cost-effective ways to improve inspection
technologies for all future new low-rise buildings constructed in the
community.
Recommendations
for Overcoming Barriers to Implementation:
Topic
B.5: Improving Vulnerability and Risk Assessments for Communities:
This Blueprint for Change will provide guidance for improving
assessments of vulnerability
and risk in communities throughout the world.
Recommendations
for Overcoming Barriers to Implementation:
·
United States: Phillip Schneider
On
the basis of our experience with the development, testing, and
evaluation of GIS software called HAZUS® developed for
performing earthquake loss estimations in communities and geographic
regions of the United States and now in other countries, we recommend
implementation of the actions outlined below:
A multihazard version of HAZUS® to include
hurricane, flood and earthquake loss estimation capability are
expected to be completed in December 2002.
1.
Every Nation should take advantage of the opportunity to obtain
HAZUS® , a comprehensive loss
estimation software model.
This model was developed through a long-term program funded by
the United States Federal Emergency Management Agency.
It is in the public domain.
2. Develop the local databases
and technical capacity needed for applying HAZUS® .
3. Develop experience by applying HAZUS® before and
after damaging earthquakes (and soon,
floods, and severe windstorms).
·
China/ Russia, Czech
Republic; Chen Yong, Chen Q.F., Frolova N., Larionov V., Nikolaev A.,
Pejcoch J.,
Suchshev S., A.N. Ugarov
On
the basis of experience in China, Russia, the Czech Republic, and
other countries, we recommend implementation of the actions outlined
below for two new systems that
estimate risk on regional and community levels. The two systems
are:
1.
The WEB-based decision support tool, “Extremum.”
This decision support tool allows possible
estimations before
and just after the event. The goal may be achieved by two ways. The
first one is
to provide decision makers with a tool for risk
simulation. The second variant is to develop the web
based tool, which
may be accessible to all interested decision makers on regional or
global level.
· The “Extremum” System, which is based on application
of new information technologies,
operated
for over 10 years: 1990 – 1997 as a local system,
and from 1998 –2000 as a WEB-based system. In
1999 – 2000,
the System was advanced within the framework of EUR-OPA EDRIM
(“Electronic
Discussions in Risk Management”) Program. The System may be applied for risk and loss assessments
by registered
end-users. The end-user may identify the scenario event to meet his
requirements. The
dialogue between the end-user and the System is
realized by means of the INTERNET.
· The
input parameters include: parameters of strong earthquakes
(coordinates, origin time, magnitude,
depth), which are available from
the WEB sites organizations such as the National Earthquake
Information Center (NEIC) of the US Geological Survey.
European Mediterranean Seismological Center
(EMSC), and the
Geophysical Survey of Russian Academy of Sciences (Obninsk, Russia).
· The outputs include calculations of the distribution and
extent of damage, the range of possible
social and economic losses,
and identification of effective crisis response measures. It will be posted
on the WEB site of the World Agency on
Monitoring and Forecast of Emergency Situations
3. The
WEB-based decision support tool,
“WaveLet.” At present the System is under
reconstruction in
order to become the Distributed Decision Support System (DDSS). The
advanced system is called “WaveLet”. In order to increase the
reliability of estimates of possible consequences from strong
earthquakes, at least two different approaches are planned to
demonstrate the capability to simulate possible damage and losses. It
is proposed to use the detailed simulation capability inherent in the
System “Extremum” and approaches based on macroeconomic
indicators.
· For input, the System uses an alternative means of
estimating earthquake losses based on
several macroeconomic indices
such as the Gross Domestic Product (GDP) and population,
including
regional seismic hazard and risk maps that are produced and updated
periodically
with new and refined information.
· For output, users are provided with quantitative
products and information of seismic hazard
and risk. They include: a) The probability that a certain value of macro seismic
intensity or of
a ground motion parameter (i.e. particle
acceleration, velocity or displacement) will not be
exceeded at any
site (oceanic or continental) in the world in various periods of
time), b) The
expected loss caused by future earthquakes at any site
in the world in various periods of time,
c) Assessment of the seismic
hazard and loss impact from an earthquake scenario anywhere in
the
world (or in a specific region), d) GIS-based maps.
·
Iran: Moshen Ghafory-Ashtiany
We
recommend implementation of the actions outlined below.
Iran
with a high density of quaternary faults is located in the active
Alpine-Himalayan seismic belt in a region between the Arabian and
Eurasia plates. An
earthquake-prone country, Iran has experienced more than 130 strong
earthquakes with magnitude of 7.5 or more in the past few centuries
and an earthquake of magnitude 2.5 every day. Rapid growth of urban
areas and inadequate planning, population density, inappropriate
design and construction, high dependency on vulnerable infrastructure
and services, concentrated political, economic and other resources
have made Iran's cities vulnerable. Rapid growth of urban areas and
inadequate planning, population density, inappropriate design and
construction, high dependency on vulnerable infrastructure and
services, concentrated political, economic and other resources in a
vulnerable city, etc. have caused high vulnerability and risk and
consequently great human and economic and social losses in the last
century.
Considering the high
level of seismic hazard and unacceptable risk in Iran, in 1991 (after
the Manjil earthquake, which occurred near the beginning of IDNDR,)
the government decided to implement a multidisciplinary strategic
research and mitigation plan entitled “Iran's Earthquake Risk
Mitigation Program (IERMP)” having the following objectives:
1. Increasing the scientific knowledge required for earthquake
hazard and risk assessment, including
seismic zonation.
2. Reduction
of risk for all types of buildings and elements of the infrastructure.
4. Promote the need for safer structures and develop professional
capacity through education and
training.
5. Increasing public awareness.
6. Promoting a culture of prevention.
7. Develop plans for
post earthquake interventions.
·
Russia: Mark Klyachko
We
recommend implementation of the actions outlined below as a means to
overcome the barriers to implementation in Russia
and CIS countries. The
barriers include: a) no real economic incentives for hazard
mitigation, b) weak stock-market, local investments and insurance
system, c) insufficient understanding and low public awareness, d)
except for Russia, weak legal provisions on the national and local
levels, e) no executive control – many of good legal measures are
not working, f) low economic capacity of population that is facing
many big and small problems just to exist from day to day, and g) few
"champions" for human rights, live safety, and
sustainable development.
1. A step – by – step approach that incrementally
improves the identification of vulnerabilities in buildings
and
infrastructure in every community.
2. Preparation and broad demonstration of the best
available examples of risk management for disaster
reduction and
safe and sustainable development (and visa versa);
3.
Special education, especially for the very young, and
the emerging professionals.
4.
Provision for financial risk analysis within every
large construction design;
5.
Supporting the penetration of risk-experts and
risk-knowledge into governments;
6. Development of strong Centers of Excellence that can
provide continuous regional leadership.
Topic
B.6: Improving Vulnerability and Risk Assessments for the Environment:
This Blueprint for Change will provide guidance for the integration of
scientific and economic considerations in environmental hazard
assessments. Scientific analyses of environmental hazards are hindered
by significant uncertainties that arise by the poor understanding of
the complex interaction of physical, chemical, and biological
processes that control these hazards and the limited amount of data
that in most cases are not error free. Moreover, the existing
technological solutions are limited in their efficiency, expensive to
implement, and can generate by-products that are difficult to control.
Recommendations
for Overcoming Barriers to Implementation:
·
United States: Evan
Paleologos, Ian Lerche, and Theodora Avanidou
We
recommend the actions outlined below.
1. We need to understand the uncertainty that is inherent in
environmental projects. The objective of this
Global Blueprint for
Change is to illustrate
the considerable uncertainty
that governs both scientific and
economic aspects of environmental
projects.
·
First there is very little difference in the framework
in which both scientific and economic
analyses are conducted.
A statistical approach appears to be the most natural way of
treating
variables (whether physical or financial) that exhibit
variability and uncertainty. Therefore,
both
technical and economic analyses share a common language that can
allow technical and
decision-making personnel communicate their
concerns easier
· Second, scientific priorities to limit uncertainty have
economic impacts and economic decisions
based on uncertain future
estimates and conditions restrict or expand technical knowledge of
the
state of a project. The
optimum allocation of resources can be done when technical and
economic aspects of a project are treated in an integrated manner.
Hence, civil or
environmental engineers primarily equipped to
address technical questions need to be formally
educated with a
broader system- oriented approach that allows them to address, at
a
minimum, business and decision-making
situations
2.
Scientific and economic analyses should be conducted in
parallel, where the same group analyzes technical questions together
with their financial implications.
This is in contrast to the studies in series, which is the
standard practice so far, where first technical studies by engineers
are conducted and then management considers financial implications.
3.
Strive for optimum resource allocation by prioritizing
technical and other needs. The aim is to
classify the relative importance and relative contribution to
total uncertainty of both the technical and
economic components of a
project.
Topic
B.7: Improving Vulnerability and Risk Assessments for Megacities:
This Blueprint for Change will provide guidance for improving
assessments of vulnerability and risk in megacities throughout the
world.
Recommendations
for Overcoming Barriers to Implementation:
· United
States/International: Fouad Bendimerad and colleagues involved in the
Earthquake Megacities Initiative
On the basis of experience
gained through the International Decade's initiative on megacities
carried out by the United Kingdom's Institution of Civil Engineers on
behalf of the World Federation of Engineering Organizations (WFEO) and
the International Union of Technical Associations (UATI), and now by
the ongoing Earthquake
Megacities Initiative, we recommend the actions outlined below.
Today's cities and megacities are unlike any that existed in
the past, and thus we cannot expect our experience with historical
disasters to guide us in the future. Cities are larger than ever
before and growing in size at an unprecedented rate. The average
population of the world's 100 largest cities has swelled from 700,000
in 1900 to 5 million in 1990. Furthermore, as cities have grown, they
have often expanded onto hazardous lands. For various reasons, people
are choosing to live in harm's way.
New
threats have arisen as the megacities have grown. In addition to the
four horsemen (famine, war, disease, and death) recognized by the
ancients, our megacities now face new perils: Climate change, sea
level rise, civil unrest and terrorism, and emerging and reemerging
diseases. The combination of natural and technological hazards creates
an enormous challenge.
1. Partnerships are needed. Natural disasters are too
large and costly to be handled by any one sector of the
society.
2. Mitigation is critical. Post-event response and recovery are
necessary, but alone they are not an
efficient or
effective means to reduce cities' risk from
natural and manmade disasters in the long term.
3. Science and technology must be employed to help reduce
the vulnerability of cities and megacities to
natural disaster.
4. Hazard mitigation should be integrated into the
general urban development process.
5. How sustainable are cities in their current form? In
many regions, cities have grown and changed
significantly since
the last major disaster. Past experience alone, therefore, is not
a reliable predictor of the
future. How have the changing size and
nature of cities affected their vulnerability to natural disasters
and
their ability to manage risk?
6. Local knowledge of populations and conditions is
critical. How are different groups within
cities affected
differently? In what ways, and to what
extent, do the poor and other marginalized groups suffer
disproportionately? What could be done to reduce the vulnerability
of these groups to natural hazards?
Potential inequities need to
be addressed in mitigation and disaster relief policies.
7. Is there a post-event window of opportunity for
reducing risk? If so, does it exist everywhere, or only in
developed countries? How can it be exploited
most effectively?
8. Natural disaster reduction must be made a public
value. Reaching out to the community and especially to
children
through the school systems is essential. Creative thinking at all
levels and strong public-private
partnerships are needed to accomplish this goal, which has been
emphasized in all forums to date.
·
Armenia: Styopa Karapetyan
We
recommend the actions outlined below as a means to carry out the basic
purposes stipulated under the program of the World Congress on
Disaster Reduction.
- We need to develop general, uniform criteria for the
estimation of the expected danger.
For this purpose it is necessary to have:
·
A broad based, knowledgeable,
and experienced team of experts.
·
An evaluation of all existing
techniques for hazard, vulnerability, and risk assessments and risk
management.
·
A consensus on these
techniques,
·
Progressive evolution toward a
preferred technique that is underpinned by continuing and distance
education and training to ensure its use.
·
India: Ravi Sinha and
Kapil Gupta
We
recommend implementation of the actions outlined below.
1. The primary
recommendation is to break the overall complex problem represented by
the
megacity into smaller sub-problems.
2. Involve many different
stakeholders in the vulnerability assessments and vulnerability
reduction
actions.
3.
Expand the experience of Mumbai and highlight the relative
effectiveness of strategies for
fostering interdisciplinary
cooperation. . Lessons
and guidelines for application in other
megacities in developing
countries will be developed.
·
Russia: Mark Klyachko
We
recommend implementation of the actions outlined below.
1.
Increasing the activity of governmental and non-governmental
organizations through programs administered by the CIS'
Intergovernmental Council for Construction, and the Association of
Megacities and Large Cities of CIS countries. Common needs and
cooperation help to jointly decide standing problem of cities at risk.
2.
Adopting and improving international
initiatives as “RADIUS”
and “Earthquakes
and Megacities."
3.
A step – by – step approach that incrementally improves the
identification of vulnerabilities in buildings and infrastructure in
every community.
4.
Preparation and broad demonstration of the best available
examples of risk management for disaster reduction and safe and
sustainable development (and visa versa).
5.
Special education for professionals with options for continuing
education and distance learning..
6.
Provision for financial risk analysis within every large
construction design;
7.
Support for the penetration of risk experts and risk knowledge
into governments;
8.
Development of strong Centers of Excellence that can provide
continuous regional leadership.
Topic
B.8: Managing Unacceptable Risk through Improved Mitigation and
Preparedness Models : This Blueprint for Change provides guidance
for managing unacceptable risk in communities throughout the world by
improving the entire process underpinning mitigation and/or
preparedness.
Recommendations
for Overcoming Barriers to Implementation:
·
United States: Therese McAllister
We
recommend the implementation of actions outlined below.
- Offer education
and training through local government agencies, such as
Emergency Management Agencies and school districts or through
professional organizations for builders, building officials,
engineers, and architects. Curriculum
content, length, and detail should be tailored to the audience as
well as regional issues and primary natural hazards.
- Establish committees within and across the appropriate
agencies to develop standards,
codes, and construction guidance.
ASCE, NES, AIA, ICC, NAHB, BOCA, SBCCI and other
appropriate agencies. Provide
guidance to manufacturer organizations for products – exterior
doors, garage doors, windows, roofing, siding, etc.
- Explore the possibility of insurance companies offering financial
incentives in the form of reduced insurance rates for shelters and
hazard-resistant construction or if low interest government loans
and/or grants can be made available at either the federal and/or
state level, which would be proactive rather that reactive
after a hazard event. Provide
Benefit-Cost Analysis guidelines to assist in determining the
relative feasibility of shelter options.
- Identify and rank critical areas requiring further
investigation, testing, or research.
Incorporate needs around the world.
Look for multiple sponsors that could benefit from the
research.
·
United States: Scott Edwards
We
recommend the implementation of the actions outlined below
1. Establish
Disaster Mitigation Technology Evaluation Centers (DMTEC), knowing
that the following barriers
will likely hinder the successful implementation of new and innovative
technologies through such a center.
·
Costs – While soliciting new technologies to enter a
DMTEC program, priority will be given to low-cost and dual-use
technologies. Dual-use
technologies address an existing infrastructure need as well as a
disaster mitigation need and, as a result can be much more cost
effective.
· Marketing Difficulties – Considering the competition
for limited resources, evaluations will incorporate the needed
expertise and represent a broad cross section of the user market. Having national representation, Panels overcome the redundant
agency-by-agency approval process.
· Known Performance – A DMTEC will perform independent,
third party product evaluations and will provide users the information
they need to make confident and technically sound decisions.
· Past Technology Failures – Less credible technology
suppliers have the capability to negatively impact an entire market or
classification of technologies. It
is essential that users of new technologies validate a technology
through appropriate evaluation techniques, especially when disaster
mitigation technologies are proposed because lives will depend on the
success of the technology.
· Liability – By using and/or participating in the
Panel-driven process, potential purchasers can be assured the
technology was thoroughly evaluated by an independent expert group
composed of their industry peers.
· Codes and Specifications – A DMTEC will work with
specification organizations to develop new specifications during the
execution of each evaluation.
This will enable the users of new technologies to specify and
require the use of a given technology.
·
United States: Shou-shan Fan, Douglas James, Hung-Tao
Shen, and Donald Wilhite
We
recommend the actions outlined below on the basis of 65 years of
experience in the United States with a national structural program for
flood control and over 30 years with a nonstructural program.
- It is time for careful audits of both the flood
control and the nonstructural programs.
2.
Take advantage of information technology. The national flood
program would achieve better results by
taking advantage of
information technology (e.g., GIS , remote sensing, etc) to track
levels of flood risk
and broadcast warnings at personal, community,
and regional levels. People
can be provided reliable
personalized information on how to prepare
for a pending flood, when and how to evacuate, and how to
salvage and
rehabilitate flooded property.
- Promote "wise use" of the floodplain.
Floodplain management programs target "unwise"
floodplain use, but the goal of "wise use" is too vague
for practical applications. By
reviewing loss experiences, we are better able to define
"wise" use and to organize reliable, current,
location-specific information for improving the economy and
quality of life in flood-prone communities. In the process, environmental, developmental, and
historical aspects must be recognized.
- Communities subject to major flooding should prepare
for extreme events that can cause major disruptions to markets,
public services, and social intercourse.
The largest losses occur when governments lose control over
community functions.
- Coordinate on a river basin level. The impact of major
floods can be reduced by coordination at a river basin level.
Policies and resources (finances, expertise, etc.) change
across agency and political boundaries.
An effective overall program must cross the boundaries to
address issues in watershed land use, floodplain
development, and flood proofing.
- Flood hazard maps should depict risk outside 100-year
floodplains.
- Forecasts of flood
peaks need to provide maximum as well as most likely estimates.
Forecasts can be structured around thresholds used in flood
fighting decisions, and risk assessment can be done interactively
with configuring communities and prescribing building practices.
- Policy makers formulating structural or nonstructural
responses need to consider protocols for integrating multiple
alternatives.
- Reduce surprises through nonstructural programs that
are firmly grounded in information technology within a basin-wide
program to minimize large-scale flood impacts.
- Establish an integrated hydrologic hazard information
system, which would:
· Focus on major parameters that influence implementation
of an emergency action plan or other operational procedures for the
preparation, response, recovery, or mitigation phases.
· Provide real time monitoring and analyses based on these
parameters.
· Use cost effective, state-of-the-art methodologies that
are commercially available.
· Use the analyses to provide management agencies and
water users technical information and assistance to improve the
efficiency and cost effectiveness of their hazard mitigation measures.
· Encourage integration of local hazard mitigation
procedures into a larger system for water resources management,
including. a) Hydrologic and hydraulic simulation and prediction, b)
Geo-technical exploration and prediction, c) Structural performance
simulation and prediction, and d) Environmental impact evaluation and
prediction.
·
Czech Republic: Dana
Procházková
We
recommend the actions outlined below.
1.
Study the characteristics that pre-determine the size of an
earthquake and the nature and distribution of its impacts on human
society and the environment.
2. Use the technical information that is now available from study
of recent strong earthquakes as the basis for design of seismically
resistant buildings, for upgrading present buildings, and for repair
of damaged buildings.
3. Promote greater involvement of government in the development of
measures and public policies leading to mitigation of earthquake
impacts.
4. Promote greater involvement of professionals in activities
designed to do the following:
·
Research the causes of disasters within the territory and the most
acceptable measures to prevent
them.
·
Assess
seismic risk.
·
Develop
criteria for construction and the operation and maintenance of
buildings and their
equipment,
·
Develop
and implement methods for determination of seismic hazard, seismic
vulnerability and
seismic risk,
·
Improve
earthquake-resistant design by codifying seismic loading
·
Define the most acceptable strategy for
improving understanding of the natural disasters that affect
the human
society.
·
Consider non-linear phenomena (e.g. ground liquefaction).
·
Consider potential
catastrophic events.
·
Research new tectonic solutions that will assure the; populace that their
needs are being met in
terms of adopting and implementing the best
technical measures for hazard mitigation.
·
Accelerate public awareness, because the best defence against any
disaster is a well-informed
society.
·
Italy, Balkans, and
Mediterranean Region: Giuliano Panza and colleagues from Algeria,
Bulgaria,
Croatia, Egypt, Greece, Israel, Italy, Morocco, Portugal,
Romania, Slovenia, Spain, Turkey
We
recommend implementation of the actions outlined below. The results
should permit to evaluate if the constraints imposed by the current
rules (EUROCODE 8 or national building codes.
Earthquakes
in the Balkans and Mediterranean region are a difficult societal
problem to solve, because they have a low annual probability of
occurrence, but a high probability of causing considerable damage as a
result of ground shaking, surface fault rupture, regional tectonic
deformation, liquefaction, landslides and, at coastal locations,
tsunami wave run-up.
1.
ACTION: Collection of the waveforms and routine compilation of
earthquake updated catalogues, as complete and homogeneous as possible
in space and time. TASKS – Provide the input information for the
seismological studies, necessary both for the analysis of seismicity
patterns and for the characterization of soil properties.
2.
ACTION: Application of the FTAN method, which provides accurate
group velocity measurements, non-linear inversion of the S-waves
dispersion curves and surface waves tomography. TASK –
Characterization of regional and local soil properties, in terms of
seismic waves propagation and attenuation. Definition of the shallow
(crust) and deep (lithosphere) structural models, necessary for the
modelling of waves propagation.
3.
ACTION:
Analysis of the stress field, by means of the full moment tensor
inversion and of the geodetical information (GPS measurements).
Identification of the seismogenic structures based on geological and
seismological evidences. TASK – Characterization of the seismic
source parameters.
4.
ACTION: Application of the Morphostructural Zonation Method to
the Mediterranean and Balkans region. The territory is divided into a
system of blocks with decreasing rank (mountain countries, megablocks
and blocks), separated by boundary zones, called lineaments. The
lineaments are identified using tectonic and geological data, with
special care to present-day topography. TASK – To delineate,
independently from seismicity information, a hierarchical block
structure of the studied region, necessary for the subsequent
evaluation of the seismogenic potential of the region.
5.
ACTION: Application of the pattern-recognition methodology of
the Earthquake-Prone Areas (EPAs). The methodology is based on the
assumption that the strong events are likely to occur at the nodes,
specific structures that are formed around intersections of
lineaments. TASK - To identify the areas with high seismogenic
potential in the Mediterranean and Balkans region.
6.
ACTION: The algorithms CN and M8 are suggested to be used for
the intermediate-term medium-range prediction of the events with
magnitude greater than a fixed threshold Mo. CN and M8
predictions should be routinely updated every two and six months,
respectively. TASK – To provide the space-time information (TIP) for
the possible occurrence of a strong earthquake, by means of the
quantitative monitoring of the seismic flow within the considered
Region.
7.
ACTION: Combination of the procedure for deterministic hazard
assessment with the formalised and globally tested algorithms for
intermediate-term earthquake prediction. TASK - To associate alarms to
a set of appropriate scenarios of damage at regional scale. To
identify, within the alerted region, the zones which could be strongly
affected by ground movements, in order to increase the preparedness of
safety measures and to improve the emergency response as well (e.g.
planning of the post-disaster emergency efforts).
8.
ACTION: Integration of the pattern recognition of EPAs with the
procedure for the realistic modelling of ground motion.
TASK - To define a set of scenarios of ground motion,
corresponding to the earthquake-prone areas identified within the
alerted region, i.e. to the sites where the strongest earthquakes are
likely to occur. The association of deterministic hazard and pattern
recognition of earthquake prone areas is especially useful in areas
where historical and instrumental information is scarce.
·
India: Prakash Tewari
We
recommend the actions outlined below.
1.
The
overall responsibility for issuing guidelines, policy and strategy for
effective disaster reduction
should be the mission of central
government.
2. Each
state should have a comprehensive multi-hazard, disaster management
plan.
3. Disaster
reduction can best be achieved through effective disaster management
response, disaster awareness and education programs.
4. The
structure of disaster management plans should consist of risk analysis
and vulnerability assessment response plan and the mitigation
strategy.
5. Each
state should have an alternate/second line of communication -
preferably a community based communication system.
6. Meaningful
sharing of data between countries can be on the mode of Disaster
Management Information System. (DMIS)
7. Community
participation is extremely important for disaster preparedness and
mitigation.
8.
Reduction
of vulnerability and risk requires greater investments.
9.
Policies
must shift from relief to development.
10.
Ongoing
efforts should be made to link disasters with development.
· United Kingdom/Asia Region: G.N. Ritchie, A.V.S. Reddy,
Andrha Pradesh, Mya Maung, P Subrahmanyam, Ravindra K. Pande, Uttar
Pradesh, and Li Tianchi
We
recommend the actions outlined below on the basis of our extensive
experience:
1. That because of the strong and obvious links, both in cause and
effect, between "Disaster,"
"Disaster Reduction," and "Sustainable
Development." the UNDP must take the lead role in implementation
of the ISDR.
2. The requirements for international relief operations, in
response to disaster situations, will continue into the far future but
these should be regarded as a humanitarian response during the
emergency period.
3. The post-disaster recovery period should be integrated
effectively both into the pre-disaster prevention, mitigation and
preparedness planning phase and the on-going development programme
supported by UNDP, the World Bank and other development aid agencies.
4. Governments of disaster-prone developing countries should be
supported by development aid donors in the development of effective
systems, which will co-ordinate and manage their national programmes
of development, urban, industrial and rural, integrated with
environmental management and disaster reduction.
5. UN, World Bank and other development aid donors must be
persuaded of the importance of integrating Disaster Reduction
programmes, based upon thorough Hazard Impact and Environmental Impact
assessments and analysis, with all new development projects.
6. All development and disaster relief donor agencies must be
persuaded of the importance of funding Disaster Mitigation and
Preparedness programmes with at least similar priority to Disaster
Relief. Poverty alleviation should be seen as the result of effective
development and disaster reduction programmes, not as “political”
programmes in their own right.
7. The support of the UN agencies, international organizations
(e.g. the World Bank, the Commonwealth Secretariat) and bilateral
donors, is of vital importance in stimulating programmes that target
decision makers and the news media in the disaster-prone developing
countries, with the aim of raising their levels of understanding and
appreciation of the nature and value of Disaster Reduction through
improved programmes of Disaster Mitigation and Preparedness. This
subject should be included whenever possible, in the wide range of
international and regional conferences on development and related
subjects, sponsored by these organizations every year.
8. The range of subjects embraced by the term Disaster Reduction,
(see definition at page 1) should be institutionalized as a
significant element of the curriculum of public service administration
training establishments and staff colleges in all disaster-prone
developing countries. It is important that the syllabus addresses both
natural and man-made threats originating in the industrialization
process and the relationships between development, environmental
management and disaster reduction and how these related subjects can
be best managed and co-ordinated in government.
9. Guidelines should be developed for the creation of compatible
`provincial`, national, regional, international and UN agency Disaster
Management Databases and Information Systems and developing countries
supported in the development of their own, as necessary. China can
provide advice from the development of their National and Provincial
systems. (Annex II attached)
10.
Community awareness of the disaster threats and their
consequences should be stimulated by Public Education and Information
programmes. The aim of these programmes must be to develop self-help
and self-reliance within the Community and a full understanding of
Government's responsibilities and plans and of Communities` own and
most important responsibilities in relation to Disaster Reduction and
Environmental Management. (Annex III attached)
11. Disaster Reduction and Preparedness planning should address how
the national military forces` capabilities can be integrated into the
National Plan consistent with their primary role, any “real”
external military threat and the state of internal political
stability.
12.
Military disaster reduction and response planning should take
into consideration the contribution to disaster response operations,
which may be available, under regional security agreements, with the
military forces of friendly neighboring countries.
13. The financial aspects of Disaster Reduction through
Mitigation and Disaster Preparedness Plans must be an element of
national budgets. In anticipation of major disaster relief needs,
there should be provision at all levels of the country's
administration for a contingency fund, which is available for
disbursement when disaster strikes on the authority of the chief
administrator of the affected area, without further authority.3.
Topic
B.9: Risk Control for Energy and Chemical Installations: This
Blueprint for Change will provide guidance to communities throughout
the world that are seeking cost-effective ways to control the risk to
energy and chemical installations.
Recommendations
for Overcoming Barriers to Implementation:
·
United
States
·
Switzerland
Topic
B.10: Next Generation of Building Codes and Lifeline Standards:
This Blueprint for Change will provide guidance to communities
throughout the world that are seeking cost-effective ways to devise,
adopt, and implement performance standards for controlling the risk to
buildings and infrastructure
Recommendations
for Overcoming Barriers to Implementation:
· Italy:
M. Maugeri and M.R.
Massimino
We
recommend the actions outlined below. Europe is a low to moderate
seismic region of the world, characterized by low seismicity
countries, such as England, Germany and France, and by moderate
seismicity countries, such as Italy and Portugal, and high seismicity
countries such as Greece. Some areas such as the South – East
Sicily, there are a low probability of earthquake occurrence but high
probability of devastating consequences.
Codes have to accommodate this
variability. The new trend in the European Codes is to emphasize the
effects of soil condition on seismic response more than in the past.
To this end, the new edition of Eurocode 8 (EC8, 2000) calls for
considerations such as:
1. Consider seven soil classes with different shear wave
velocities and/or different values of SPT blow count NSPT
in the upper 30-m.
The classes A, B,
C and D are subdivided in accordance with different values of VS
and NSPT; while for the class E is considered the contrast of
VS between an
upper soil deposit and a lower stiffer material at a depth of 5-20 m;
in addition the soil classes S1
and S2,
consisting respectively of soft clays/silts with high plasticity index
and high water content (soil class S1)
and deposits of liquefiable soils or sensitive clays (soil class S2), are considered.
2. Because evaluation of site effects is a key point for the
response spectra analysis; special site studies are required.
3. Conduct soil investigation for site characterization and the
analysis of the stability of the site of construction, to minimize
hazards of rupture, due to the vicinity of seismically active faults,
and of slope instability, liquefaction and high densification
susceptibility, due to earthquakes.
4. Buildings shall not be located in the immediate vicinity of
seismically active tectonic faults and the siting
stability must be
checked according to Fig. 17, avoiding slope instability, potential
liquefaction and soil
densification under cyclic loads.
- Performance-based, rather than prescription-based,
considerations are required.
Hence, the process must incorporate the possibility of an
alternative evaluation of ground motion with the aim of satisfying
the required performance even if using different suggestions,
procedures and approaches. Alternative design spectra must be
based on performance-design, such as displacement-based-design.
Topic
B.11: Improving Resiliency of Transportation Systems: This
Blueprint for Change will provide guidance on context-specific design
to make transportation systems resilient to natural and environmental
hazards.
Recommendations
for Overcoming Barriers to Implementation:
- United States: Amar Chaker
We
recommend the actions outlined below.
Because transportation systems are distributed over a wide area
and are made up of a large number of components subject to failure,
they are very vulnerable to a range of disasters. Large social and
economic losses can thus be incurred when only a small percentage of
the total system is disrupted. Today, the knowledge and technology
exist to implement effective disaster mitigation practices.
A number of obstacles prevent that knowledge and that
technology to be used in practice. Lack of information, lack of
training, lack of funding, lack of legislation, and lack of
enforcement are the most common of these obstacles.
The
recommendations to overcome one or more of these barriers to
implementation include:
1. Pursue and improve current practice in the areas of hazard
evaluation, emergency preparedness,
and vulnerability reduction.
·
Hazard maps
·
Hazard zonation maps
2. Enhance emergency response. Contingency plans should include
such measures as:
·
Providing warning and advisory information on traffic
conditions for prospective travelers.
·
Providing information for travelers currently at some
point of the transportation system.
·
Rescue and evacuation operations.
·
Availability of special equipment and crews to restore
normal travel conditions.
·
Availability of temporary repair solutions and
procedures.
·
Reconfiguration of signaling in real time to respond to
changed conditions.
·
Rerouting of travelers on less problematic itineraries.
3. Reduce
the vulnerability of new and existing infrastructure.
·
Assess the weaknesses and deficiencies of each existing
component, in terms of its fragility or
susceptibility to damage from
a range of hazards.
·
"Fix" the weak components.
4. Improve transportation planning procedures.
5. Practice sensible zoning and land use planning.
6. Incorporate concern for multi-disaster vulnerability in urban
planning activities.
7. Review each component of each system and ask the question:
"What can interrupt the flow of traffic?"
8. Generate, review, and evaluate all scenarios leading to system
interruption
9.
Reduce the gaps in knowledge through ongoing studies of the
following:
·
Achieve advances in hazard mapping and identification.
·
Achieve advances in
hazard prediction.
·
Develop low-cost retrofit
technology.
·
Develop expert systems to
classify bridges screening and evaluation.
·
Achieve advances in
retrofit technologies, materials.
·
Achieve advances in
evaluation of multi hazard vulnerability of multi-modal
transportation
networks.
·
Develop network reliability models that will allow
identifying critical links in existing
transportation systems as well
as what is likely to be the serviceable portion of the
transportation
system.
·
Explore the potential of wire rope, inflatable and
foldable (“umbrella”) substitute structures that
can be easily
moved and deployed for providing at least limited service such as
reduced load
traffic.
·
Achieve advances in
assessment procedures.
10.
Reduce the gaps in implementation through actions such as the
following:
· Where missing, enact and
enforce legislation requiring the use of appropriate performance
standards for all infrastructure components.
· Explore innovative
sources of funding for mitigation activities.
· Provide training to the
personnel involved in mitigation activities.
· Disseminate information
on mitigation technology.
· Disseminate the message
that disasters are not inevitable, that knowledge and technology exist
today, that allow effective mitigation.
11.
Expand the use of re-insurance.
·
Examine all the options for use of reinsurance to
reduce the likelihood of major financial
setbacks and to free
up resources
·
India: Kapil Gupta
We
recommend the actions outlined below in terms of a Flood
Mitigation Strategy (FMS) for the transport sector.
The aim is to improve the resilience of the transport sector of
high-density urban cities, with special emphasis on the developing
countries, and thereby to reduce the devastating effects of urban
floods in the urban cities of the developing world. While there are many examples of effective flood mitigation
strategies in communities around the world, the communities in the
developing world are still very vulnerable to the risks of flooding.
The
following actions are envisioned within the framework of FMS:
- Establish interaction between the business community,
scientific community and the government on a continuing basis.
- Involve the scientific community in a more proactive
role to reach out to the decision makers. Since most solutions are
technical in nature, the scientific community needs to transfer
this knowledge in easily comprehensible terms.
- Promote long-term sustainable measures for mitigation.
- Establish links between mitigation measures and city
development plans.
Topic B.12 Improving
Resiliency of Large Dams: This Blueprint for Change will provide
guidance on the siting, design, and construction phases to make large
dams resilient to natural and environmental hazards.
Recommendations
for Overcoming Barriers to Implementation:
·
Armenia:
Styopa Karapetyan
We
recommend implementation of the actions outlined below as a
means to carry out the vision of the
World Congress on Disaster Reduction, namely
to develop the common, uniform criteria for
increasing the elasticity of the large dams.
For this purpose it is necessary to:
- Have a vision about achieving the
"state-of-the-world" practice in the field of
construction of the large dams.
- Carry out a program to gather and analyze
all existing design procedures and designs.
- Evaluate these techniques
- Create guidelines based on a set of common principles
for increasing the elasticity of large dams.
· Switzerland/International:
Martin Wieland, R. Peter Brenner, Robert Zwahlen, Shou
Shan FanHyo
Seop Woo, Abdallah I. Husein Malkawi
We
recommend implementation of the actions outlined below to achieve a
comprehensive dam safety program.
The
spectrum of natural and environmental hazards of dam projects is very
wide. The World Commission of Dams carried out a detailed analysis of
the concerns of large dams. The final report, which was released in
November 2000, is focusing on environmental, ecological, economical
and socioeconomic issues of large dam projects. However, the current
Blueprint does not focus on these issues. It is mainly concerned with
hazards, which can cause unpredicted short-term dam failure.
Accordingly, the numerous long-term processes, which cause
deterioration in the foundation and the reservoir, are not discussed
in detail. Moreover, acts of war, terrorism and sabotage, which can
cause dam failure, are not considered.
A comprehensive
dam safety program includes the following key elements: a) structural
safety, b) dam safety monitoring, c) safe dam operation, and d)
emergency planning for worst-case scenarios
1.
A risk analysis is needed.
In a risk analysis, the risks are analyzed in terms of the
likelihood or probability of occurrence of natural and environmental
hazards and the magnitude of the potential consequences. With slope
stability hazards, it is usually quite difficult to estimate the
failure probability or the volume of the sliding mass, or its velocity
of movement. Impounding the reservoir can increase or decrease the
likelihood of failure depending on how the water load affects the
force equilibrium and the effective stresses along the potential
failure surface.
2.
A thorough, well-planned site investigation is needed
It provides a means recognizing
potential problems early, allowing an appreciation of the
possible consequences of failure, and where possible, the initiation
of remedial measures.
3.
Management approach and prioritization procedures are needed to
streamline technical evaluation activities and associated risk
management. The latter involves quantifying the risks that earthquakes
and landslides pose and also assessing whether the risk is acceptable.
5. Risk
management processes are needed.
They are a powerful tool for prioritizing and managing risks,
provided that competent technical input is available. Through risk
management the stability of the
reservoir slopes is identified,
analyzed and assessed to allow for informed decisions on accepting or
treating and controlling risks in order to minimize them.
6. Risk
mitigation and risk treatment are needed.
Mitigation and management procedures for reservoir
slope
hazards follow the same techniques as used for landslides. During the
design stage, risk can be
mitigated by accounting for reservoir slope
stability in the selection of the location, type, general
arrangement, reservoir level and operation of the storage
facility. At any stage during construction,
slope stabilization work
is possible; structures can be modified to better suit the existing
hazard. Also,
the operation of the reservoir can be tailored to
counteract the latent hazard (e.g. restriction on the
rate of draw
down), or reservoir and land use can be restricted. In addition, risk
can be mitigated by
monitoring and emergency preparations. Risk treatment is a process of selecting and implementing
measures for managing the risks that have been identified. Low
priority or acceptable slope instability
risks may require no further
consideration other than monitoring and periodic review. Other risks
will
require the identification and evaluation of treatment options
and the implementation of mitigation
measures. Monitoring and periodic
review will be necessary to manage the greatly reduced residual
risk
that will remain after treatment.
Topic
B.13: Improving Understanding of the Interaction Between the Built
Environment and Natural Systems:
This Blueprint for Change will provide recommendations on the future
course of engineering education,
research, and practice
in the understanding of the interaction between natural systems
(biosphere, hydrosphere, geosphere) and non-natural systems at
multiple scales from local to regional and global.
Recommendations
for Overcoming Barriers to Implementation:
·
United
States/International: Bernard Amadei, Peter Smeallie, Olga
Postolskaya, and Sergey Yufin
We recommend implementation of the actions outlined below
because it is clear that engineers of the 21st century will
be called to make decisions in a professional environment where they
will have to interact with others from many technical and
non-technical disciplines.
- A major paradigm shift is needed.
Traditionally, engineering practice and engineering education have
been based on the paradigm of control of nature rather than
cooperation with nature. In this paradigm, humans and the natural
world are divided. As a result, past engineering achievements have
often been developed without considering their social, economic
and environmental impacts on natural systems. A worldwide
transition to a more holistic approach to engineering requires a
major paradigm shift from control of nature to participation with
nature. For example, the question of what represents a sustainable
engineering structure or system is still an open-ended question
that needs to be addressed and clarified by engineers.
- Engineers need to be given a much
broader and integrated education than what is traditionally taught
in engineering curricula today. For example, an ability to
understand a broader perspective beyond technical issues and an
exposure to the principles of sustainable development, renewable
resources management, and systems thinking are needed.
Also, engineers need to know how engineering structures
adapt and adjust to natural systems.
- The quality of engineering decisions in society must
be improved. Uninformed
decisions directly affects the quality of life of human and
natural systems today and in the future
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