Railway Undertaking (ERA Ontology ref.)

... a railway undertaking as defined in point (1) of Article 3 of Directive 2012/34/EU, and any other public or private undertaking, the activity of which is to provide transport of goods and/or passengers by rail on the basis that the undertaking is to ensure traction; this also includes undertakings which provide traction only. (Article 2(45) of Directive EU/2016/797)