Green Infrastructure: The Effects of Urban Rail Transit on Air Quality

Yihsu Chen and Alexander Whalley

American Economic Journal: Economic Policy, 2012, vol. 4, issue 1, 58-97

Abstract: The transportation sector is a major source of air pollution worldwide, yet little is known about the effects of transportation infrastructure on air quality. This paper quantifies the effects of one major type of transportation infrastructure—urban rail transit—on air quality using the sharp discontinuity in ridership on opening day of a new rail transit system in Taipei. We find that the opening of the Metro reduced air pollution from one key tailpipe pollutant, carbon monoxide, by 5 to 15 percent. Little evidence that the opening of the Metro affected ground level ozone pollution is found however. (JEL L92, Q53, R41, R53)

JEL-codes: L92 Q53 R41 R53 (search for similar items in EconPapers)
Date: 2012
Note: DOI: 10.1257/pol.4.1.58
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Citations: View citations in EconPapers (127)

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