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Temporal Assessment of the Embodied Greenhouse Gas Emissions of a Toronto Streetcar Line

机译：Toronto Streetcar Line的体现温室气体排放时间评估

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摘要

Transportation greenhouse gas (GHG) emissions often account for the largest share of urban GHG emissions. Consequently, large-scale reductions in urban GHG emissions will not be possible without significant improvements in the transport sector. Increasing public transit mode share is widely promoted in efforts to reduce GHG emissions from transport. Large increases in public transit use will require the provision of new transportation infrastructure, which is itself GHG intensive. This paper presents a time-dependent analysis of the embodied GHG emissions associated with construction and reconstruction for the refurbishment and street redesign of the 510 Spadina streetcar route in Toronto, Canada during a 38-year period. From 1987 to 2015, the embodied emissions in the line's civil infrastructure are calculated as 27.4 kilotons of CO2 equivalent (ktCO2e). It is expected that, by 2025, further reconstruction of the right-of-way (ROW) will increase embodied GHG emissions to 32.1 ktCO2e. Overall, reconstruction projects increase GHG emissions by 25.9% beyond initial construction. When accounting only for at-grade infrastructure, reconstruction increases embodied emissions by 45.8% during the 38-year study period.
机译：运输温室气体（GHG）排放经常占城市温室气体排放量的最大份额。因此，在没有运输部门的重大改善，将无法进行大规模减少。增加公共途公交模式份额在努力中促进了减少运输的温室气体排放量。公共交通使用的大幅增加将需要提供新的交通基础设施，这本身就是温室气体。本文介绍了与加拿大多伦多的510个Spadina Streetcar路线的翻新和街道的建设和重建相关的变化的温室气体排放量的时间依赖性分析，在38年期间。从1987年到2015年，线路民事基础设施的体现排放量计算为27.4千吨二氧化碳等效物（KTCO2E）。预计，到2025年，进一步重建右路（行）将会将体现的温室气体排放量增加到32.1 ktco2e。总体而言，超出初始建设的重建项目将增加25.9％的温室气体排放量。仅在38岁的研究期间核算时，重建将在45.8％增加45.8％。

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  • 来源
    《Journal of Infrastructure Systems》 |2019年第2期|06019001.1-06019001.11|共11页
  • 作者

    Makarchuk Benjamin; Saxe Shoshanna;

  • 作者单位

    Univ Toronto Dept Civil Engn 35 St George St Toronto ON M5S 1A4 Canada;

    Univ Toronto Dept Civil Engn 35 St George St Toronto ON M5S 1A4 Canada;

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