Estimating the impacts of a public transit reform on particulate matter concentration levels: the case of Transantiago in Chile

  • Eugenio Figueroa Departamento de Economía; Universidad de Chile, Diagonal Paraguay 257, Oficina 1501; Santiago 833015
  • Andrés Gómez-Lobo Departamento de Economía; Universidad de Chile, Diagonal Paraguay 257, Oficina 1501; Santiago 833015
  • Pablo Jorquera Departamento de Economía; Universidad de Chile, Diagonal Paraguay 257, Oficina 1501; Santiago 833015
  • Felipe Labrín Departamento de Economía; Universidad de Chile, Diagonal Paraguay 257, Oficina 1501; Santiago 833015

Abstract

Estimating the specific effects of a complete reform of the public transit system of a large city is a difficult task due to the confounding effects that will usually mask the impact of interest. In this study we estimate the impact of the complete reform of the public transport system in Santiago, Chile, named Transantiago, on a specific aspect of interest: particulate matter air pollution levels in the city. Using a regression model with daily panel data from air quality monitoring stations, we conclude that Transantiago reduced the daily average MP10 concentration levels in at least 3.9 μg/m3. This generates health benefits estimated to be close to US$ 200 million a year in our medium scenario, 12% of which correspond to lower public sector health expenditure. If the data for the first year of operation of the system (when it was not yet in steady-state) are excluded the estimated reduction in MP10 levels is even higher. Other effects of Transantiago, positive as well as negative, would need to be estimated in order to obtain a comprehensive evaluation of the reform.
Keywords Atmospheric pollution, public transportation, public health, Chile
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How to Cite
Figueroa, E., Gómez-Lobo, A., Jorquera, P., & Labrín, F. (2013). Estimating the impacts of a public transit reform on particulate matter concentration levels: the case of Transantiago in Chile. Estudios de Economía, 40(1), pp. 53-79. Retrieved from https://estudiosdeeconomia.uchile.cl/index.php/EDE/article/view/28347/43298
Section
Articles
Published
2013-09-30