Author: Tiihon Savo
National railway signalling systems have gradually grown over time to include different solutions from several technology providers. There is no common standard for these systems’ external interfaces and interoperability has therefore always been a challenge. Typically, the integration between different interlockings, trackside elements and traffic management systems has been achieved by means of the tailor-made adaptation of proprietary interfaces. These adaptations are continuously maintained in order to address any lifecycle modifications in the installed base equipment.