Urban Risks in South Asia Challenges and Opportunities. P.G.Dhar Chakrabarti Director SAARC Disaster Management Centre Executive Director National Institute of Disaster Management. Urbanizing world. World is passing through great urban upsurge
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Challenges and Opportunities
SAARC Disaster Management Centre
National Institute of Disaster Management
Population in Billions
World Population Prospects, 2008, UN
48 cities in the world have reached density level of more than 15000 per sq. km. All of them are in developing countries. Dhaka is the most dense city with 40,100 persons living per sq km
Risk Assessment and analysis
Non structural Mitigation
Relative to conditions specific to Cities
Master Plans Zoning Regulations
Training Capacity Building
High Technical Solutions
Heavy Engineering Solutions
Legal and Institutional Framework
Education, Awareness, CBDRM
A resilient city is a sustainable network of physical systems and communities.
Physical systemsinclude its roads, buildings, infrastructure, communications facilities, soils, topography, geology, and the like. They act as the body of the city, its bones, arteries, and muscles.
Communities are the social and institutional components of the city. They include the neighborhoods, agencies, organizations, enterprises, task forces, and the like. They act as the brain of the city, directing its activities, responding to its needs, and learning from its experience. A city without resilient communities will be extremely vulnerable to disasters.
Resilient physical systemsare stable and use fail-safe design, can conduct early fault detection and take quick remedial measures, are dispersed rather than site specific, employ standardization, are composed of small, semi-autonomous units, rather than centralized at few points.
Resilient operating systemsare efficient, reversible, autonomous, and incremental. They take short lead time and have rapid response to stimuli.
Resilient social systems involve all stakeholders, are compatible with diverse value systems, can satisfy multiple goals at the same time, distribute benefits and costs equitably and have high accessibility.
Resilient economic systems employ incremental funding, provide a wide range of potential financial support, enjoy a high benefit-cost ratio, give an early return on investments, and divide benefits and costs equitably.
Resilient environmental systems minimize adverse impacts, and have a replenishable or extensive resource base.