The Effect of Metro Rail on Air Pollution in Delhi
AbstractThe Delhi Metro (DM) is an electric based public transit system serving the National CapitalRegion of India. We used data from 2004 to 2006, for three criteria pollutants, namely, nitrogen dioxide (NO2), carbon monoxide (CO), and particulate matter (PM2:5), and quantified the effect of theDMon the levels of these pollutants. Using a Regression Discontinuity approach our analysis shows that the extension of various lines of the DM led to a decrease in the levels of all three transportation source pollutants. Looking across two different locations within the city, and across various metro rail extensions, we find that expansion of the DM resulted in a 10 to 28 percent reduction in NO2, a 13 to 68 percent reduction in CO, and a 11 percent reduction in PM2:5. These estimates are to be interpreted as the localised short run impact, and they point to a strong traffic diversion effect of the DM.
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Bibliographic InfoPaper provided by Centre for Development Economics, Delhi School of Economics in its series Working papers with number 229.
Length: 34 pages
Date of creation: May 2014
Date of revision:
Find related papers by JEL classification:
- Q5 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics
- R4 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Transportation Economics
This paper has been announced in the following NEP Reports:
- NEP-ALL-2013-05-19 (All new papers)
- NEP-ENE-2013-05-19 (Energy Economics)
- NEP-ENV-2013-05-19 (Environmental Economics)
- NEP-TRE-2013-05-19 (Transport Economics)
- NEP-URE-2013-05-19 (Urban & Real Estate Economics)
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