sections and nodes
as defined in Regulation (EU) 2026/1184 of the European Parliament and of the Council of 20…, Article 5, point (19) (Definitions)
a representation of the railway network in the form of a graph composed of nodes connected by sections which is structured in a way that allows relevant characteristics of the supply of, and demand for, railway infrastructure capacity to be taken into account, in particular for the purpose of strategic capacity planning