The Effect of Metro Expansions on Air Pollution in Delhi
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 emi...
| Main Authors: | , |
|---|---|
| Format: | Working Paper |
| Language: | English en_US |
| Published: |
World Bank, Washington, DC
2015
|
| Subjects: | |
| Online Access: | http://documents.worldbank.org/curated/en/2015/10/25167492/effect-metro-expansions-air-pollution-delhi http://hdl.handle.net/10986/22878 |
| Summary: | 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. |
|---|