Evaluation of the efficiency of the friction tread brake of the diesel motor car Ya. A. Khurmatov, O. U. Khaydarov, B. A. Abdullaev, Sh. B. Djabbarovand and S. G. Inagamov E3S Web of Conf., 402 (2023) 04009 Published online: 19 July 2023 DOI: 10.1051/e3sconf/202340204009