Robust data testing from Resilience or robustness: identifying topological vulnerabilities in rail networks PaganiAlessio MosqueraGuillem AlturkiAseel JohnsonSamuel JarvisStephen WilsonAlan GuoWeisi VargaLiz 2019 The rail performance statistics used in this paper are relative to the year 2016/17, here we show this is not a spurious result by using alternative years data.