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Contribution of Subway Expansions to Air Quality Improvement and the Corresponding Health Implications in Nanjing, China

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  • Meina Zheng

    (Jiangsu Key Laboratory of Urban ITS, Southeast University, Nanjing 210096, China
    Jiangsu Province Collaborative Innovation Center of Modern Urban Traffic Technologies, Southeast University, Nanjing 210096, China
    School of Transportation, Southeast University, Nanjing 210096, China)

  • Xiucheng Guo

    (Jiangsu Key Laboratory of Urban ITS, Southeast University, Nanjing 210096, China
    Jiangsu Province Collaborative Innovation Center of Modern Urban Traffic Technologies, Southeast University, Nanjing 210096, China
    School of Transportation, Southeast University, Nanjing 210096, China)

  • Feng Liu

    (School of Economics and Management, Southeast University, Nanjing 210096, China)

  • Jiayan Shen

    (Jiangsu Key Laboratory of Urban ITS, Southeast University, Nanjing 210096, China
    Jiangsu Province Collaborative Innovation Center of Modern Urban Traffic Technologies, Southeast University, Nanjing 210096, China
    School of Transportation, Southeast University, Nanjing 210096, China)

Abstract

With China’s rapid economic development, particularly its accelerated urbanization, air pollution has been one of the serious environmental issues across China. Most major cities in China expand their subway systems to handle this problem. This study takes both long- and short-term effects of subway expansions on air quality and its corresponding health implications into account based on a network density-based time series analysis and a distance-based difference-in-differences analysis. The daily and hourly monitor-level air quality data on Nanjing from 13 May 2014 to 31 December 2018, combining with corresponding weather variables, are used to quantify the effect of subway expansions on local air pollution caused by eight new subway lines in Nanjing. The results reveal that subway expansions result in a statistically significant decrease in the air pollution level; specifically, the air pollution level experiences a 3.93% larger reduction in the areas close to subway lines. Heterogeneous analysis of different air pollutants indicates that the air pollution reduction effect of subway expansions is more significant in terms of Particulate Matter (PM 2.5 ) and CO. A back-of-the-envelope analysis of the health benefits from this air improvement shows that the total number of yearly averted premature deaths is around 300,214 to 443,498. A set of alternative specifications confirm the robustness of our results. These results provide strong support for putting more emphasis on the environmental effect of subway expansions in the cost-benefit analysis of subway planning.

Suggested Citation

  • Meina Zheng & Xiucheng Guo & Feng Liu & Jiayan Shen, 2021. "Contribution of Subway Expansions to Air Quality Improvement and the Corresponding Health Implications in Nanjing, China," IJERPH, MDPI, vol. 18(3), pages 1-19, January.
  • Handle: RePEc:gam:jijerp:v:18:y:2021:i:3:p:969-:d:485534
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    1. Chen, Yuyu & Jin, Ginger Zhe & Kumar, Naresh & Shi, Guang, 2013. "The promise of Beijing: Evaluating the impact of the 2008 Olympic Games on air quality," Journal of Environmental Economics and Management, Elsevier, vol. 66(3), pages 424-443.
    2. Gilles Duranton & Matthew A. Turner, 2011. "The Fundamental Law of Road Congestion: Evidence from US Cities," American Economic Review, American Economic Association, vol. 101(6), pages 2616-2652, October.
    3. Matas, Anna & Raymond, Josep-LLuis, 2008. "Changes in the structure of car ownership in Spain," Transportation Research Part A: Policy and Practice, Elsevier, vol. 42(1), pages 187-202, January.
    4. Nelson, Peter & Baglino, Andrew & Harrington, Winston & Safirova, Elena & Lipman, Abram, 2007. "Transit in Washington, DC: Current benefits and optimal level of provision," Journal of Urban Economics, Elsevier, vol. 62(2), pages 231-251, September.
    5. Stefan Bauernschuster & Timo Hener & Helmut Rainer, 2017. "When Labor Disputes Bring Cities to a Standstill: The Impact of Public Transit Strikes on Traffic, Accidents, Air Pollution, and Health," American Economic Journal: Economic Policy, American Economic Association, vol. 9(1), pages 1-37, February.
    6. Viard, V. Brian & Fu, Shihe, 2015. "The effect of Beijing's driving restrictions on pollution and economic activity," Journal of Public Economics, Elsevier, vol. 125(C), pages 98-115.
    7. Ying Wang & Jing Tao & Rong Wang & Chuanmin Mi, 2020. "Can the New Subway Line Openings Mitigate PM10 Concentration? Evidence from Chinese Cities Based on the PSM-DID Method," IJERPH, MDPI, vol. 17(13), pages 1-19, June.
    8. James Heckman & Hidehiko Ichimura & Jeffrey Smith & Petra Todd, 1998. "Characterizing Selection Bias Using Experimental Data," Econometrica, Econometric Society, vol. 66(5), pages 1017-1098, September.
    9. Beaudoin, Justin & Farzin, Y. Hossein & Lin Lawell, C.-Y. Cynthia, 2015. "Public transit investment and sustainable transportation: A review of studies of transit's impact on traffic congestion and air quality," Research in Transportation Economics, Elsevier, vol. 52(C), pages 15-22.
    10. Li, Xi & Yu, Biying, 2019. "Peaking CO2 emissions for China's urban passenger transport sector," Energy Policy, Elsevier, vol. 133(C).
    11. Fan, Maoyong & He, Guojun & Zhou, Maigeng, 2020. "The winter choke: Coal-Fired heating, air pollution, and mortality in China," Journal of Health Economics, Elsevier, vol. 71(C).
    12. Li, Shanjun & Liu, Yanyan & Purevjav, Avralt-Od & Yang, Lin, 2019. "Does subway expansion improve air quality?," Journal of Environmental Economics and Management, Elsevier, vol. 96(C), pages 213-235.
    13. Michael L. Anderson, 2014. "Subways, Strikes, and Slowdowns: The Impacts of Public Transit on Traffic Congestion," American Economic Review, American Economic Association, vol. 104(9), pages 2763-2796, September.
    14. Olivier Deschênes & Michael Greenstone & Joseph S. Shapiro, 2017. "Defensive Investments and the Demand for Air Quality: Evidence from the NOx Budget Program," American Economic Review, American Economic Association, vol. 107(10), pages 2958-2989, October.
    15. Hongyan Zhao & Guannan Geng & Qiang Zhang & Steven J. Davis & Xin Li & Yang Liu & Liqun Peng & Meng Li & Bo Zheng & Hong Huo & Lin Zhang & Daven K. Henze & Zhifu Mi & Zhu Liu & Dabo Guan & Kebin He, 2019. "Inequality of household consumption and air pollution-related deaths in China," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
    16. HE, Ling-Yun & QIU, Lu-Yi, 2016. "Transport demand, harmful emissions, environment and health co-benefits in China," Energy Policy, Elsevier, vol. 97(C), pages 267-275.
    17. Stefan Bauernschuster & Timo Hener & Helmut Rainer, 2017. "When Labor Disputes Bring Cities to a Standstill: The Impact of Public Transit Strikes on Traffic, Accidents, Air Pollution, and Health," American Economic Journal: Economic Policy, American Economic Association, vol. 9(1), pages 1-37, February.
    18. Guojun He & Yuhang Pan & Takanao Tanaka, 2020. "The short-term impacts of COVID-19 lockdown on urban air pollution in China," Nature Sustainability, Nature, vol. 3(12), pages 1005-1011, December.
    19. Yihsu Chen & Alexander Whalley, 2012. "Green Infrastructure: The Effects of Urban Rail Transit on Air Quality," American Economic Journal: Economic Policy, American Economic Association, vol. 4(1), pages 58-97, February.
    20. Lalive, Rafael & Schmutzler, Armin & Luechinger, Simon, 2013. "Does Supporting Passenger Railways Reduce Road Traffic Externalities?," CEPR Discussion Papers 9335, C.E.P.R. Discussion Papers.
    21. Andrew Goodman-Bacon & Jan Marcus, 2020. "Difference-in-Differences to Identify Causal Effects of COVID-19 Policies," Discussion Papers of DIW Berlin 1870, DIW Berlin, German Institute for Economic Research.
    22. Nicholas Rivers & Soodeh Saberian & Brandon Schaufele, 2020. "Public transit and air pollution: Evidence from Canadian transit strikes," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 53(2), pages 496-525, May.
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