TY CONF TI DIGITALIZATION OF MAINTENANCE AND REPAIR FOR REDUCING VEHICLE FLEET DOWNTIME KW maintenance digitalization KW bus fleet KW downtime KW technical availability KW repair management KW information system KW predictive analytics JO MODERN TECHNOLOGIES AND SYSTEMS IN TRANSPORT: PROBLEMS AND PROSPECTS AU Pestov, A.A. AU Zagorodnii, N.A. AU Tsoi, E.A. AU Orlov, L.V. AU Fedotov, E.A. PY 2026 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov