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Traffic, Air Pollution, and Distributional Impacts in Dar es Salaam : A Spatial Analysis with New Satellite Data

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  • Dasgupta,Susmita
  • Lall,Somik V.
  • Wheeler,David

Abstract

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.

Suggested Citation

  • Dasgupta,Susmita & Lall,Somik V. & Wheeler,David, 2020. "Traffic, Air Pollution, and Distributional Impacts in Dar es Salaam : A Spatial Analysis with New Satellite Data," Policy Research Working Paper Series 9185, The World Bank.
    • Handle: RePEc:wbk:wbrwps:9185
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    References listed on IDEAS

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    1. Nicolas Gendron-Carrier & Marco Gonzalez-Navarro & Stefano Polloni & Matthew A. Turner, 2022. "Subways and Urban Air Pollution," American Economic Journal: Applied Economics, American Economic Association, vol. 14(1), pages 164-196, January.
    2. Adler, Martin W. & van Ommeren, Jos N., 2016. "Does public transit reduce car travel externalities? Quasi-natural experiments' evidence from transit strikes," Journal of Urban Economics, Elsevier, vol. 92(C), pages 106-119.
    3. Michael L. Anderson, 2014. "Subways, Strikes, and Slowdowns: The Impacts of Public Transit on Traffic Congestion," American Economic Review, American Economic Association, vol. 104(9), pages 2763-2796, September.
    4. Deepti Goel & Sonam Gupta, 2017. "The Effect of Metro Expansions on Air Pollution in Delhi," The World Bank Economic Review, World Bank, vol. 31(1), pages 271-294.
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    Cited by:

    1. Selod,Harris & Soumahoro,Souleymane, 2020. "Big Data in Transportation : An Economics Perspective," Policy Research Working Paper Series 9308, The World Bank.

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    More about this item

    Keywords

    Intelligent Transport Systems; Air Quality&Clean Air; Pollution Management&Control; Brown Issues and Health; Inequality; Health Care Services Industry; Railways Transport;
    All these keywords.

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