Keywords: reliability, availability, maintainability, safety, RAMS, superstructure, infrastructure, maintenance processes, failure modes.

This paper summarizes the AV-RAMS project. This paper shows the results obtained by analysing data from different sources. These results have made possible the study of parameters reliability, availability, maintainability and safety (RAMS) of the infrastructure and superstructure of a high speed railway system. This is an innovative study, as rarely is the expression RAMS used with systems that do not concern electrical engineering, as is the case of the infrastructure and superstructure. Explained here is one of the mayor difficulties of the AV-RAMS project, because RAMS studies are almost always related with the brand of electrical engineering, machinery, components, etc. as the regulations are not intended for different systems, unlike the track infrastructure and superstructure. The aim of the study of the different events and failure modes of the infrastructure and superstructure is to improve the maintenance processes of a high speed railway system. With the conclusions obtained in the project AV-RAMS, a cost analysis and the integration of this project with RAMS studies of other railway systems, a theoretical model is achieved which lets us redefine and improve the railway system.

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