As the backbone of green transportation,intercity railways play a supporting role in reducing energy consumption and achieving the goal of"carbon peak and carbon neutrality".This paper analyzes the development trajectory and energy consumption patterns of intercity railways in China,with a particular focus on the entire lifecycle of planning,design,construction,and operation within the context of the"dual carbon"initiative.Utilizing the Beijing-Xiong'an intercity railway as a prototypical case,the paper examines energy consumption and carbon emissions across its lifecycle,incorporating the influence of energy-saving,emission-reduction strategies,and green carbon sink measures.The findings reveal that carbon emissions during the planning and design phases are negligible,whereas the energy consumption during the operation stage dominates,accounting for approximately 74.9%of the total annual lifecycle energy consumption.Additionally,the energy consumption attributed to building materials production(scaled to 100 years)constitutes roughly 22.4%of the total.Notably,the implementation of energy conservation,emission reduction,and green carbon sequestration measures has yielded substantial outcomes,achieving an average annual energy savings of approximately 12%.When compared with similar railway energy consumption indicators globally,the Beijing-Xiong'an intercity railway's unit transportation traction energy consumption of 6.42 tce per million person-kilometer aligns with expectations.Furthermore,its carbon reduction impact is significant in diverting highway passenger traffic,savings approximately 612.67 million yuan in carbon sink transactions and generating substantial societal benefits.This comprehensive analysis offers valuable insights and reference for the establishment of a green and low-carbon intercity railway carbon emission dual control indicator system.
关键词
铁路运输/碳排放/全生命周期/京雄城际/能耗指标
Key words
railway transportation/carbon emissions/whole life cycle/Beijing-Xiong'an intercity railway/energy consumption index