Research Article
Carbon Emission during Highway Construction in Northwest China Analysis and Forecasts
@INPROCEEDINGS{10.4108/eai.24-11-2023.2343472, author={Zhimin Chen and Weifei Zhao and Pengji Zheng and Dianqiang Wang and Hui Long and Haoyong Zhang}, title={Carbon Emission during Highway Construction in Northwest China Analysis and Forecasts }, proceedings={Proceedings of the International Conference on Industrial Design and Environmental Engineering, IDEE 2023, November 24--26, 2023, Zhengzhou, China}, publisher={EAI}, proceedings_a={IDEE}, year={2024}, month={2}, keywords={highway construction; carbon emission accounting; carbon emission projection; life cycle assessment; sensitivity analysis}, doi={10.4108/eai.24-11-2023.2343472} }- Zhimin Chen
Weifei Zhao
Pengji Zheng
Dianqiang Wang
Hui Long
Haoyong Zhang
Year: 2024
Carbon Emission during Highway Construction in Northwest China Analysis and Forecasts
IDEE
EAI
DOI: 10.4108/eai.24-11-2023.2343472
Abstract
The construction of highways consumes a large amount of energy and materials and emits a large amount of greenhouse gases into the atmosphere. In order to grasp the carbon emission law of expressways in Northwest China. By proposing the accounting method of carbon emission during the construction period of highways in Northwest China. The characteristics of carbon emissions during the construction period of highways in Northwest China and the differences with other regions were calculated and analysed based on actual cases in different regions. Sensitivity analyses were carried out on the influencing factors of carbon emissions. A prediction model of carbon emissions during the construction period of highways in Northwest China is also established.The results of the study show that: (1) That in more than 65% of the carbon emissions from the material production stage; the construction stage, land acquisition and removal stage and material transportation stage accounted for 16.52%, 12.31% and 1.96% of the whole carbon emission, respectively. (2) The carbon emission intensity of expressways in Northwest China is concentrated in the range of 15 ~ 35 t CO2eq / m. This is significantly higher than 5 ~ 30 t CO2eq / m in other regions. (3) The sensitivity analysis finds that factors such as steel reinforcement, cement, and bridge-to-tunnel ratio can significantly and sensitively influence the carbon emissions of the highway during the construction period.
