Traffic, Air Pollution, and Distributional Impacts in Dar es Salaam : A Spatial Analysis with New Satellite Data
Air pollution from vehicular traffic is a major source of health damage in urban areas. The problems of urban traffic and pollution are essentially geographic, because their incidence and impacts depend on the spatial distribution of economic activ...
| Main Authors: | , , |
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| Format: | Working Paper |
| Language: | English |
| Published: |
World Bank, Washington, DC
2020
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| Subjects: | |
| Online Access: | http://documents.worldbank.org/curated/en/960861584126320950/Traffic-Air-Pollution-and-Distributional-Impacts-in-Dar-es-Salaam-A-Spatial-Analysis-with-New-Satellite-Data http://hdl.handle.net/10986/33445 |
| Summary: | Air pollution from vehicular traffic is
a major source of health damage in urban areas. The problems
of urban traffic and pollution are essentially geographic,
because their incidence and impacts depend on the spatial
distribution of economic activities, households, and
transport links. This paper uses satellite images to
investigate the spatial dynamics of vehicle traffic, air
pollution, and exposure of vulnerable residents in the Dar
es Salaam metro region of Tanzania. The results highlight
significant impacts of seasonal weather (temperature,
humidity, and wind-speed factors) on the spatial
distribution and intensity of air pollution from vehicle
emissions. These effects on the metro region's air
quality vary highly by area. During seasons when weather
factors maximize pollution, the worst exposure occurs in
areas along the wind path of high-traffic roadways. The
research identifies core areas where congestion reduction
would yield the greatest exposure reduction for children and
the elderly in poor households. |
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