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The effect of a new subway line on local air quality: A case study in Changsha

机译:新地铁线对局部空气质量的影响 - 以长沙为例

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摘要

Public transit is viewed as a potential means to mitigate traffic congestion and its resulting air pollution and health consequences. A recent wave of studies has emerged examining whether this public investment can achieve its goals. Employing the difference in difference method, this paper examines the medium-term effect of the opening of a completely new subway line on local air pollution in Changsha. Our findings show that carbon monoxide pollution, one key type of automobile pollution in areas close to the subway line experienced a greater reduction relative to areas further away from the stations in the first year after the subway line opened. However, there is no evidence that the opening of the subway line affected particulate matter or ozone pollution. Heterogeneity effects support that air pollution reduction resulted from substituting subway use for road use.
机译:公共交通被视为减轻交通拥堵及其导致的空气污染和健康后果的潜在手段。最近的一波研究已经审查了这项公共投资是否可以实现其目标。采用差异方法的差异,本文探讨了全新地铁线开放对长沙局部空气污染的中期效应。我们的研究结果表明,一氧化碳污染,地铁线靠近地铁线靠近的区域的一种关键类型的汽车污染,在地铁线路开放后的第一年的远离地区的区域相对于远离车站的区域更大。然而,没有证据表明地铁线的开口影响颗粒物质或臭氧污染。异质性效应支持,减少空气污染从替代道路使用的地铁使用。

著录项

  • 来源
    《Transportation Research》 |2019年第3期|26-38|共13页
  • 作者单位

    MIT Dept Urban Studies & Planning Cambridge MA 02139 USA|MIT Ctr Real Estate 77 Massachusetts Ave Cambridge MA 02139 USA;

    Tsinghua Univ Hang Lung Ctr Real Estate Dept Construct Management Beijing 100084 Peoples R China;

    Jinan Univ Inst Econ & Social Res Guangzhou 510632 Guangdong Peoples R China;

    Chinese Acad Sci Inst Geog Sci & Nat Resources Res State Key Lab Resources & Environm Informat Syst Beijing 100101 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Subway; Air pollution; Local effect; Difference in difference; Changsha;

    机译:地铁;空气污染;局部效果;差异差异;长沙;

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