道路系统全生命周期碳排放量化分析框架——基于国际标准

Quantitative Analysis Framework of Road System Life-Cycle Carbon Emissions Under International Standards

由于车辆为移动碳源、道路基础设施非普通建筑等特性,道路系统全生命周期碳排放量化较为复杂。不同于传统道路基础设施生命周期评价(LCA)相关研究以道路实体作为产品系统,在深入解析有关LCA的ISO系列标准、GHG Protocol系列标准、PAS 2050系列标准的基础上,针对道路基础设施和车用燃料参与交通服务生产过程中的功能属性,以交通服务作为产品系统。在PAS 2050指导下将基础设施生命周期和燃料生命周期有机结合,建立了基础设施角度的项目级道路系统全生命周期碳排放量化分析框架,确立了道路项目生命周期碳排放核算范围。此项研究以国际标准为基础,为道路系统全生命周期碳排放量化研究提供了理论基础。

As vehicles are mobile carbon sources and road infrastructure is uncommon building, the quantification of carbon emissions in the whole lifecycle of road systems is relatively complicated. Different from relevant research on lifecycle assessment(LCA) of traditional road infrastructure which takes road entities as the product system, this paper takes transportation services as the product system with regard to functional attributes of road infrastructure and automotive fuels in production of transportation services, based on the analysis on ISO standards, GHG Protocol standards and PAS 2050 standards relevant to LCA. Under the guidance of PAS 2050 standards, the paper organically combines the lifecycle of infrastructure and the lifecycle of fuels, sets up the analysis framework of the quantification of carbon emissions in the whole lifecycle of project-level road systems from the perspective of infrastructure, and confirms the accounting scope of lifecycle carbon emissions of road projects. The research provides a theoretical basis for research on the quantification of carbon emissions in the whole lifecycle of road systems based on international standards.