TY JOUR TI Tractive Effort Calculations with Consideration for the Arrangement and Rearrangement of Block Section Boundaries KW tractive effort calculations KW train movement parameters KW speed limitations KW speed reduction mode KW speed reduction distance KW train length KW headway control JO Transport automation research AU Kokurin, I.M. AU Pushkin, I.A. PY 2025 IS PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"