TY JOUR TI Transitional sections of continuous track adjacent to turnouts KW railway track KW superstructure of the track KW rail track KW turnouts KW transition sections KW subsidence of the railway track KW geometric unevenness of the track JO Bulletin of scientific research results AU Shehtman, E.I. AU Chernyaeva, V.A. AU Chupyrin, A.A. AU Naumov, A.V. PY 2024 IS 2024 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"