华南理工大学学报（自然科学版）2025，Vol.53Issue(2)：68-79,12.DOI:10.12141/j.issn.1000-565X.240047
平曲线要素对小客车运行碳排放的影响特征研究
Study on the Impact Characteristics of Horizontal Curve Elements on Carbon Emissions from Passenger Car Operation
摘要
Abstract
China's"14th Five-Year Plan"places higher demands on green transportation development,with emis-sions from traffic operations being the primary source of carbon emissions in the transportation sector.To investi-gate the factors influencing carbon emissions of passenger cars on highway curved segments,this study conducted on-site driving tests using OBD-equipped vehicles to collect driving data from typical curved road segments in Guangdong Province,and obtains carbon emission data through the IPCC carbon emission accounting method.Re-levant evaluation indicators influencing passenger car emissions were selected based on road alignment,and gray re-lational analysis was used to calculate the correlations between these indicators.The results indicate that among the geometric alignment elements of horizontal curve sections,indicators such as the proportion of transition curve length and transition curve parameters are significantly correlated with the segmental carbon emission rate.The ra-dius of the circular curve is also significantly correlated within a specific range.For non-geometric factors,indica-tors such as the standard deviation and mean of acceleration show significant correlations with carbon emissions,and these two indicators are further associated with geometric factors like transition curve parameters and the pro-portion of transition curve length.Based on the results of the grey relational analysis,eight correlated indicators were selected,and a grey GM(1,N)model was developed to predict the total carbon emissions of passenger cars on horizontal curve sections.The prediction results show an average relative error of 5.10%compared to the actual values.The predictive performance of the model surpasses that of traditional multiple regression models,demon-strating outstanding performance and reliability in scenarios with limited data.The findings of this study can iden-tify key design and operational parameters significantly influencing carbon emissions,providing a theoretical basis for the low-carbon optimization and management of highway horizontal curve sections.关键词
公路/平曲线/碳排放率/灰色关联度/小客车Key words
highway/horizontal curve/carbon emission rate/gray relational analysis/passenger car分类
交通工程引用本文复制引用
王晓飞,罗振,王少华,潘玲,曾强..平曲线要素对小客车运行碳排放的影响特征研究[J].华南理工大学学报（自然科学版）,2025,53(2):68-79,12.基金项目
广东省自然科学基金项目(2024A1515011177) （2024A1515011177）
广东省科技计划项目(2024A1111120009) （2024A1111120009）
广东江中高速公路有限公司/广东省路桥建设发展有限公司资助项目(ZJKJ1-KY-00701A) Supported by the Natural Science Foundation of Guangdong Province(2024A1515011177)and the S&T Programm of Guangdong Province(2024A1111120009) （ZJKJ1-KY-00701A）
