TY JOUR TI Functional Model of Railway Automated Design System in Informational-Digital Environment KW Automated computer design KW railway KW informational modeling KW informational model KW informational-digital environment KW terrain digital model KW structural system analysis KW functional modeling JO Bulletin of scientific research results AU Anisimov, V.A. AU Bulakaeva, O.S. AU Shkurnikov, S.V. PY 2022 IS 2022 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"