TY JOUR TI An integral model for reading and statistical analysis of traction rolling stock load graphs KW statistical analysis KW load curve KW traction power supply KW computer modelling KW SimInTech KW KORTES KW traction calculation JO Proceedings of Petersburg Transport University AU Galkov, A.A. AU Khudonogov, I.A. PY 2026 IS 23 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"