【摘要】 高速公路基础设施在全生命周期内产生的碳排放是容易忽视的重要碳排放来源。为促进碳减排政策的制定和量化考核，采用生命周期评价法建立一种通用化的高速公路基础设施碳足迹核算方法，以山东枣庄-菏泽高速路段为案例进行核算分析，揭示其碳排放水平和减排方向。结果表明：在高速公路基础设施全生命周期中，建设期是主要碳排放来源，桥涵工程贡献最大；在建设期碳排放方面，材料物化是主要来源，建设施工是次要来源，其中水泥低碳材料替换及土石方运距减少是主要减排方向；在运营期碳排放方面，电能消耗是主要来源，电耗降低与清洁电力使用是主要的减排方向。更多还原

【Abstract】 The carbon emission generated by highway infrastructure in its whole life cycle is an important source of carbon emission which is easy to be ignored. In order to promote the formulation and quantitative assessment of carbon emission reduction policies, a general carbon footprint accounting method of highway infrastructure was established by using Life Cycle Assessment. The Zaozhuang-Heze highway in Shandong Province was taken as a case for calculation and analysis to reveal its carbon emission level and reduction direction. The results show that during the whole life cycle of highway infrastructure, the construction period is the main source of carbon emission, bridge and culvert projects contribute the most. In terms of carbon emission during the construction period, material and chemical are the main sources, construction are secondary sources, and the replacement of low-carbon cement materials and the reduction of earth-stone transport distance are the main emission reduction directions. In terms of carbon emissions during the operation period, electric consumption is the main source, and the reduction of it and the use of clean electricity are the main emission reduction directions.更多还原