Research on Emission Level Assessment of Heavy-Duty Vehicle Fleets Based on Remote MonitoringBinghui Ma, Hao Zhang, Yu Liu, Hanzhengnan Yu, Jingyuan Li, Xiaopan An, Kunqi Ma, Yongkai Liang and Hang XuE3S Web Conf., 639 (2025) 01015DOI: https://doi.org/10.1051/e3sconf/202563901015