The Effect of Metro Expansions on Air Pollution in Delhi

Goel, Deepti ; Gupta, Sonam

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The Delhi Metro (DM) is a mass rapid transit system serving the National Capital Region of India. It is also the world’s first rail project to earn carbon credits under the Clean Development Mechanism of the United Nations for reductions in CO2 emissions. Did the DM also lead to localized reduction in three transportation source pollutants? Looking at the period 2004–2006, one of the larger rail extensions of the DM led to a 34 percent reduction in localized CO at a major traffic intersection in the city. Results for NO2 are also suggestive of a decline, while those for PM25 are inconclusive due to missing data. These impacts of pollutant reductions are for the short run. A complete accounting of all long run costs and benefits should be done before building capital intensive metro rail projects.

Document type: Working paper
Publisher: The World Bank
Place of Publication: Washington, D.C.
Date: 2015
Version: Secondary publication
Date Deposited: 07 Jan 2016
Number of Pages: 70
Faculties / Institutes: Miscellaneous > Individual person
DDC-classification: Commerce, communications, transport
Controlled Keywords: Delhi, Untergrundbahn, Luftverschmutzung, Geschichte 2004-2006
Uncontrolled Keywords: Delhi, Metro, Luftverschmutzung, Geschichte 2004-2006 / Delhi, Metro, Air Pollution, History 2004-2006
Subject (classification): Science and Technology
Countries/Regions: India
Additional Information: © World Bank. License: CC BY 3.0 IGO
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