urban water management sustainable cities course accra beach hotel, bridgetown, barbados 11-14...
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Urban Water Management
Sustainable Cities CourseAccra Beach Hotel, Bridgetown, Barbados
11-14 August, 2015
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The ‘Urban’ Context of Barbados
• No discrete urban centre• Comprehensive network
infrastructure and wide availability of services
• PDP (2003) defines an Urban Corridor (UC)
• Coastal location• Water and sewerage
services play catch-up
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Urban Demographics: Overview
• Population is ageing (under-15s fell from 24.1% in 1990 to 19.7% in 2010)
• Suburbanisation rather than Urbanisation:– UC Share of Population fell from 67.9% in 2000 to
66.3% in 2010– UC Share of Occupied Dwellings in the UC fell from
69.7% in 2000 to 67.8%– Between 2005 and 2010 a net out-movement from
‘urban’ parishes; St. Michael (-2,505), St. Philip (+1,081)
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Components of Urban Water
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Source: Vairavamoorthy & Brikke
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Source: Vairavamoorthy & Brikke
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Source: Vairavamoorthy & Brikke
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Source: Tanaka, 2010
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Water in the Urban Environment
It’s not so simple is it….
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So what are the water related challenges facing urban areas in the Caribbean?
Let’s have your thoughts…….
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Water Management
• Water security– Quantity– Quality– Accessibility– Affordability
• Who should pay• How should we pay• How much should we pay
• Water supply– Resource limitations– Service operation &
management
• Wastewater– Re-engineering– Resource recovery
• Water related hazards– Role of town planning
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Climate related hazard impacts on urban environments
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Goals and levels of management
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The City as an organism
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An Integrated Approach
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Recent thinking in IUWM
• Response to changing circumstances– Manufactured hazards– Changing perceptions & expectations– Responding to complexity– Finance & economics
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Source: Wong and Brown, 2009
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Water Sensitive Urban Design Approaches
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Some initiatives
CopenhagenStormwater management
Hamburg-HarburgWastewater reuse
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Are we missing a trick?
How could we do things better?Could we ‘close’ the water cycle?
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Use of ICT in Water Management
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ICT – Where could we apply it in the Water Sector in Barbados?
• What applications can you suggest• Who would do it• Why would it be applied
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Source: Vairavamoorthy & Brikke
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Source: Vairavamoorthy & Brikke