%0 Journal Article %T Ontological Approach to the Development of Unified Knowledge Base of Multimodal Transportations %A Badeckiy, A.P. %A Medved', O.A. %K Multimodal transportations, knowledge bases, ontologies, cargo traffic management, digital transformation %J Proceedings of Petersburg Transport University %D 2023 %N 20 %P 11 %I FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"