TY JOUR TI Assessment of the Engineering Network Maintenance Efficiency of Railway Transport Infrastructure KW Engineering networks of the railway infrastructure KW metal networks of water supply KW heat supply and sewerage KW assessment of maintenance efficiency JO Proceedings of Petersburg Transport University AU Prodous, O.A. AU Kabanov, A.V. PY 2025 IS 22 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"