温室气体
生命周期评估
全球变暖
全球变暖潜力
环境科学
米
能源消耗
能源需求
环境影响评价
土木工程
工程类
自然资源经济学
环境工程
气候变化
经济
地质学
生产(经济)
天文
宏观经济学
物理
电气工程
海洋学
生物
生态学
作者
Sofiia Miliutenko,Jonas Åkerman,Anna Björklund
标识
DOI:10.18757/ejtir.2012.12.1.2948
摘要
Inclusion of Life Cycle Assessment during the planning of transport infrastructure is rarely used in practice, but is becoming a widely discussed issue nowadays. This study sought to improve understanding of the life cycle energy use and greenhouse gas emissions of transport infrastructure, using the example of a road tunnel. Two levels of analysis were used: 1) detailed data inventory for the construction of rock tunnels; and 2) screening assessment for the life cycle phases of the whole tunnel infrastructure (including its main parts: concrete and rock tunnels). The first level of analysis showed that production of materials (i.e. concrete and asphalt) made the largest contribution to Cumulative Energy Demand and Global Warming Potential. The second level of analysis indicated that concrete tunnels had much higher Cumulative Energy Demand and Global Warming Potential per lane-metre than rock tunnels. Moreover, the operational phase of the tunnel was found to have the highest share of energy use and greenhouse gas emissions throughout the tunnel’s life cycle.
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