铁道运输与经济2025，Vol.47Issue(6)：24-36,76,14.DOI:10.16668/j.cnki.issn.1003-1421.2025.06.03
地铁全生命周期的碳排放强度研究:以广州地铁21号线为例
Full Life-Cycle Carbon Emission Intensity of Subway:A Case Study of Guangzhou Metro Line 21
摘要
Abstract
Given the context of global efforts in addressing climate change,carbon emission accounting serves as a critical prerequisite for quantifying the effectiveness of emission reduction pathways,holding significance for promoting green and low-carbon development in the rail transit sector of China.To this end,a full life-cycle carbon emission measurement model for urban rail transit was constructed based on the life cycle assessment method,with Guangzhou Metro Line 21 selected as a case study for carbon emission accounting and analysis.The results demonstrate that the total carbon emissions throughout the system's full life-cycle of the line reach 4 676 856.43 t carbon dioxide equivalent,where the construction phase contributes 46.35%of the total emissions.During the operation phase,train traction and station operation account for 30.06%and 23.59%of emissions respectively.This study establishes clear accounting boundaries for the carbon emissions of urban rail transit and examines the full life-cycle carbon emission intensity of Guangzhou Metro Line 21,providing critical reference for the carbon emission assessment in rail transit systems.关键词
城市轨道交通/碳排放/全生命周期评估/广州地铁/碳排放核算模型Key words
Urban Rail Transit/Carbon Emission/Full Life-Cycle Assessment/Guangzhou Metro/Carbon Emission Accounting Model分类
交通工程引用本文复制引用
黄亚唯,陈霞,闫雅斌,袁敏正,卢少锋,罗海枫..地铁全生命周期的碳排放强度研究:以广州地铁21号线为例[J].铁道运输与经济,2025,47(6):24-36,76,14.基金项目
广州市科技计划项目(2023A03J0073) （2023A03J0073）
