This project will model a railway network as a weighted graph using OSM data. Centrality measures can be used to identify important stations and railway corridors. Disruptions can be simulated by removing important nodes or edges in order to gauge consequent network fragmentation and changes to connectivity. GIS will be used to visualise the distribution of vulnerable points and deduce patterns with regards to urban geography and travel demand. The project will combine a thorough evaluation of vulnerable points within a railway network with a discussion of the consequent implications for transport reliability and connectivity.