Abstract
<jats:p>Digital twins of railway infrastructure and rolling stock are emerging as a foundational technology for enhancing the reliability, energy efficiency, and operational controllability by enabling endtoend integration of lifecycle data (surveying — design — construction — operation — maintenance and repair). Purpose: to systematize contemporary digital twin solutions in the railway sector. Results: an overview of corporate platforms and industry ecosystems, such as operational conditionmonitoring platforms, BIM solutions for infrastructure, and networklevel PLM approaches, is presented, together with descriptions of applied projects implemented by operators and manufacturers. A classification by solution type and lifecycle stage is proposed; a comparative matrix of leading platforms and cases is presented; and issues of standardization (OpenBIM/IFC), information security requirements, and operational parameters are considered. Practical significance: the review’s findings can inform the selection of an appropriate technology stack and guide the formulation of a roadmap for deploying digital twins in railway transport.</jats:p>