华南理工大学学报(自然科学版) ›› 2025, Vol. 53 ›› Issue (2): 68-79.doi: 10.12141/j.issn.1000-565X.240047

• 交通运输工程 • 上一篇    下一篇

平曲线要素对小客车运行碳排放的影响特征研究

王晓飞1, 罗振1, 王少华2, 潘玲3, 曾强1   

  1. 1.华南理工大学 土木与交通学院,广东 广州 510640
    2.广东江中高速公路有限公司,广东 广州 510699
    3.广东华路交通科技有限公司,广东 广州 510420
  • 收稿日期:2025-01-25 出版日期:2025-02-25 发布日期:2025-02-03
  • 通信作者: 曾强(1988—),男,博士,副教授,主要从事道路交通安全、公共交通运营与管理研究。 E-mail:zengqiang@scut.edu.cn
  • 作者简介:王晓飞(1980—),女,博士,副教授,主要从事公路路线及交通安全研究。E-mail: xiaofeiw@scut.edu.cn
  • 基金资助:
    广东省自然科学基金项目(2024A1515011177);广东省科技计划项目(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)

Study on the Impact Characteristics of Horizontal Curve Elements on Carbon Emissions from Passenger Car Operation

WANG Xiaofei1, LUO Zhen1, WANG Shaohua2, PAN Ling3, ZENG Qiang1   

  1. 1.School of Civil Engineering &Transportation,South China University of Technology,Guangzhou 510640,Guangdong,China
    2.Guangdong Jiangzhong Expressway Co. ,Ltd. ,Guangzhou 510699,Guangdong,China
    3.Guangdong Hualu Traffic Technology Co. ,Ltd. ,Guangzhou 510420,Guangdong,China
  • Received:2025-01-25 Online:2025-02-25 Published:2025-02-03
  • Contact: 曾强(1988—),男,博士,副教授,主要从事道路交通安全、公共交通运营与管理研究。 E-mail:zengqiang@scut.edu.cn
  • About author:王晓飞(1980—),女,博士,副教授,主要从事公路路线及交通安全研究。E-mail: xiaofeiw@scut.edu.cn
  • Supported by:
    the Natural Science Foundation of Guangdong Province(2024A1515011177);the S & T Programm of Guangdong Province(2024A1111120009)

摘要:

我国“十四五”发展规划对交通绿色发展提出了更高要求,交通运营所产生的排放是交通行业碳排放的主要来源。为研究公路平曲线路段小客车运行碳排放的影响因素,通过开展现场实车试验,试验车载OBD(On Board Diagnostics)设备采集广东省内典型公路曲线段现场行车试验数据,并通过IPCC(Intergovernmental Panel on Climate Change)碳排放核算方法获取路段碳排放率数据,结合道路线形选取了影响小客车运行排放的相关评价指标,在灰色关联分析的基础上对相关评价指标进行关联度计算。结果表明:平曲线路段线形要素中缓和曲线长度占比、缓和曲线参数等指标与路段碳排放率显著关联;圆曲线半径在一定区间内与路段碳排放率显著关联。非线形指标中显著相关的有加速度标准差和加速度均值,与这两者显著相关的线形指标是缓和曲线参数和缓和曲线长度占比。结合灰色关联分析结果,从指标中选取了8个关联指标,通过建立灰色GM(1,N)模型对平曲线路段小客车行驶碳排放总量进行预测,预测结果和实际结果平均相对误差为5.10%,模型预测性能优于传统多元回归模型,在数据有限的情况下表现出色并提供可靠的预测结果。研究成果可识别路段对碳排放有显著影响的关键设计和运行参数,为平曲线路段低碳优化设计和管理提供理论依据。

关键词: 公路, 平曲线, 碳排放率, 灰色关联度, 小客车

Abstract:

China’s “14th Five-Year Plan” places higher demands on green transportation development, with emissions from traffic operations being the primary source of carbon emissions in the transportation sector. To investigate 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 relational 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 radius of the circular curve is also significantly correlated within a specific range. For non-geometric factors, indicators 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 proportion 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, demonstrating outstanding performance and reliability in scenarios with limited data.The findings of this study can identify 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.

Key words: highway, horizontal curve, carbon emission rate, gray relational analysis, passenger car

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