TY JOUR TI A Methodology for a Comprehensive Assessment of the Quality of the Data Transmission Network Functioning of Cyber-Physical Systems at JSCo “Russian Railways” KW Data transmission network KW communication network KW methodology KW quality of functioning assessment KW mathematical model JO Proceedings of Petersburg Transport University AU Privalov, A.A. AU Boldinov, A.M. PY 2025 IS 22 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"