The development of the RailTopoModel is a result of the ERIM project (abbreviation for European Rail Infrastructure Modelling) within UIC that aims at standardized data representation and exchange concerning railway networks [REF].
In 2013, starting from the assessment of a small group of IMs about limitation of current exchange formats for ETCS, RINF, Inspire, and European projects based on network topology, the UIC ERIM feasibility study[REF][REF] was launched.