On Linking Heterogeneous Railway Knowledge Graphs: Challenges in Integrating ERA and OpenStreetMap Rail Infrastructure Representations
Published in: Sem4Tra Workshop
2025
Abstract
In the last years railway infrastructure data has become available via public SPARQL endpoints. The ontologies/vocabularies used to represent the topology part of the railway data are mainly based either on the Open Street Map (OSM) data model or on the UML-based RailTopoModel. In this paper we discuss some of the challenges of integrating railway infrastructure data especially topological data. As an example, we show how to link the data available for the Austrian railway network using Open Street Map data via the QLever SPARQL endpoint and data from the ERA Knowledge Graph.