Safety Verification of Modern Railway Signalling with the SafeCap Platform

Modernising outdated national railway systems will be done gradually due to practical constraints thus creating network areas with different signalling systems. Formal methods have been successfully applied in the railway domain for years. Yet the latest railway challenges such as heterogeneous railway signalling will require novel modelling techniques and adequate verification tools support. The SafeCap platform was developed with an objective to enable railway engineers to design and formally verify safety of railway networks without prior knowledge of formal methods. This research aims to improve the existing SafeCap platform to allow users to reason about novel signalling systems including heterogeneous railway networks. In this short paper we present the main challenges in developing practical but formal SafeCap approach.