Return on Investment in Green Urban Development : Amelioration of Flood Risk in the Msimbazi River Catchment, Dar Es Salaam, Tanazania
Rapid urbanisation is taking place at an unprecedented rate throughout the world, with the rate of growth often outpacing urban planning and the capacity of city managers. As a result, existing natural areas within cities,which provide a range of b...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Report |
| Language: | English en_US |
| Published: |
World Bank, Washington, DC
2017
|
| Subjects: | |
| Online Access: | http://documents.worldbank.org/curated/en/541771495439323628/Promoting-green-urban-development-in-Africa-enhancing-the-relationship-between-urbanization-environmental-assets-and-ecosystem-services http://hdl.handle.net/10986/26702 |
| id |
okr-10986-26702 |
|---|---|
| recordtype |
oai_dc |
| spelling |
okr-10986-267022021-05-25T09:00:24Z Return on Investment in Green Urban Development : Amelioration of Flood Risk in the Msimbazi River Catchment, Dar Es Salaam, Tanazania Turpie, Jane Kroeger, Timm De Risi, Raffaele de Paola, Francesco Letley, Gwyneth Forsythe, Katherine Day, Liz GREEN GROWTH GREEN INVESTMENT URBAN DEVELOPMENT CITY DEVELOPMENT STRATEGY RIVER BASINS FLOOD RISK RAINFALL VULNERABILITY WATER MANAGEMENT HYDROLOGY Rapid urbanisation is taking place at an unprecedented rate throughout the world, with the rate of growth often outpacing urban planning and the capacity of city managers. As a result, existing natural areas within cities,which provide a range of benefits to urban dwellersare becoming smaller and degraded, and problems such as flooding, air pollution and water pollution are becoming worse in many places. African cities often lackthe resources to deal with these problems. However, anumber of studies have suggested that investing in the maintenance or restoration of natural infrastructurein many cases may not only address given problems at comparable or lower cost than conventional engineering projects, but also generate multiple additional benefits that ultimately translate into cost savings and increased human wellbeing. Meanwhile, great strides have been made in the design of sustainable mechanisms to deal with urban environmental issues, stormwater flows and the attendant pollution problems, and management and planning of cities is increasingly taking a holistic approach that includes the use and conservation of semi-natural and natural areas within cities as part of a green urban development strategy. One of the challenges of green urban development will be to findthe right balance between ecological infrastructure(natural systems), “green” (= environmentally friendly)built infrastructure, and conventional (“grey”) built infrastructure. Dar es Salaam, located on Africa’s Indian Ocean Coast,faces a multitude of environmental problems. Prominent among them is the problem of flooding in and around the city centre, which frequently brings the city to a standstill, as well as causing infrastructural damage. Many factors have contributed to this problem, including unplanned informal settlements in the upper catchment and floodplain areas, a lack of drainage and a lack of solid waste management. The impacts of flooding are also exacerbated by high levels of pollution in the rivers, which increases the risks associated with flooding. In consultations for this study, stakeholders in Dar esSalaam identified the Msimbazi River as being amongthe most degraded ecosystems in the city and also the source of the most serious flooding problems. The aim of the study was to explore the potential costs and benefits of undertaking a green urban development approach, including catchment-to-coast restoration measures, to ameliorate flood risk in the Msimbazi Rivercatchment. 2017-05-22T17:37:35Z 2017-05-22T17:37:35Z 2017-04-01 Report http://documents.worldbank.org/curated/en/541771495439323628/Promoting-green-urban-development-in-Africa-enhancing-the-relationship-between-urbanization-environmental-assets-and-ecosystem-services P148662 http://hdl.handle.net/10986/26702 English en_US Promoting Green Urban Development in Africa; CC BY 3.0 IGO http://creativecommons.org/licenses/by/3.0/igo World Bank World Bank, Washington, DC Economic & Sector Work :: City Development Strategy Economic & Sector Work Africa Tanzania |
| repository_type |
Digital Repository |
| institution_category |
Foreign Institution |
| institution |
Digital Repositories |
| building |
World Bank Open Knowledge Repository |
| collection |
World Bank |
| language |
English en_US |
| topic |
GREEN GROWTH GREEN INVESTMENT URBAN DEVELOPMENT CITY DEVELOPMENT STRATEGY RIVER BASINS FLOOD RISK RAINFALL VULNERABILITY WATER MANAGEMENT HYDROLOGY |
| spellingShingle |
GREEN GROWTH GREEN INVESTMENT URBAN DEVELOPMENT CITY DEVELOPMENT STRATEGY RIVER BASINS FLOOD RISK RAINFALL VULNERABILITY WATER MANAGEMENT HYDROLOGY Turpie, Jane Kroeger, Timm De Risi, Raffaele de Paola, Francesco Letley, Gwyneth Forsythe, Katherine Day, Liz Return on Investment in Green Urban Development : Amelioration of Flood Risk in the Msimbazi River Catchment, Dar Es Salaam, Tanazania |
| geographic_facet |
Africa Tanzania |
| relation |
Promoting Green Urban Development in Africa; |
| description |
Rapid urbanisation is taking place at an
unprecedented rate throughout the world, with the rate of
growth often outpacing urban planning and the capacity of
city managers. As a result, existing natural areas within
cities,which provide a range of benefits to urban
dwellersare becoming smaller and degraded, and problems such
as flooding, air pollution and water pollution are becoming
worse in many places. African cities often lackthe resources
to deal with these problems. However, anumber of studies
have suggested that investing in the maintenance or
restoration of natural infrastructurein many cases may not
only address given problems at comparable or lower cost than
conventional engineering projects, but also generate
multiple additional benefits that ultimately translate into
cost savings and increased human wellbeing. Meanwhile, great
strides have been made in the design of sustainable
mechanisms to deal with urban environmental issues,
stormwater flows and the attendant pollution problems, and
management and planning of cities is increasingly taking a
holistic approach that includes the use and conservation of
semi-natural and natural areas within cities as part of a
green urban development strategy. One of the challenges of
green urban development will be to findthe right balance
between ecological infrastructure(natural systems), “green”
(= environmentally friendly)built infrastructure, and
conventional (“grey”) built infrastructure. Dar es Salaam,
located on Africa’s Indian Ocean Coast,faces a multitude of
environmental problems. Prominent among them is the problem
of flooding in and around the city centre, which frequently
brings the city to a standstill, as well as causing
infrastructural damage. Many factors have contributed to
this problem, including unplanned informal settlements in
the upper catchment and floodplain areas, a lack of drainage
and a lack of solid waste management. The impacts of
flooding are also exacerbated by high levels of pollution in
the rivers, which increases the risks associated with
flooding. In consultations for this study, stakeholders in
Dar esSalaam identified the Msimbazi River as being amongthe
most degraded ecosystems in the city and also the source of
the most serious flooding problems. The aim of the study was
to explore the potential costs and benefits of undertaking a
green urban development approach, including
catchment-to-coast restoration measures, to ameliorate flood
risk in the Msimbazi Rivercatchment. |
| format |
Report |
| author |
Turpie, Jane Kroeger, Timm De Risi, Raffaele de Paola, Francesco Letley, Gwyneth Forsythe, Katherine Day, Liz |
| author_facet |
Turpie, Jane Kroeger, Timm De Risi, Raffaele de Paola, Francesco Letley, Gwyneth Forsythe, Katherine Day, Liz |
| author_sort |
Turpie, Jane |
| title |
Return on Investment in Green Urban Development : Amelioration of Flood Risk in the Msimbazi River Catchment, Dar Es Salaam, Tanazania |
| title_short |
Return on Investment in Green Urban Development : Amelioration of Flood Risk in the Msimbazi River Catchment, Dar Es Salaam, Tanazania |
| title_full |
Return on Investment in Green Urban Development : Amelioration of Flood Risk in the Msimbazi River Catchment, Dar Es Salaam, Tanazania |
| title_fullStr |
Return on Investment in Green Urban Development : Amelioration of Flood Risk in the Msimbazi River Catchment, Dar Es Salaam, Tanazania |
| title_full_unstemmed |
Return on Investment in Green Urban Development : Amelioration of Flood Risk in the Msimbazi River Catchment, Dar Es Salaam, Tanazania |
| title_sort |
return on investment in green urban development : amelioration of flood risk in the msimbazi river catchment, dar es salaam, tanazania |
| publisher |
World Bank, Washington, DC |
| publishDate |
2017 |
| url |
http://documents.worldbank.org/curated/en/541771495439323628/Promoting-green-urban-development-in-Africa-enhancing-the-relationship-between-urbanization-environmental-assets-and-ecosystem-services http://hdl.handle.net/10986/26702 |
| _version_ |
1764462529932689408 |