The paper summarizes the design implementation and validation of the Computer Based Interlocking (ACC) designed by Ansaldo Transporti under the supervision of the Italian Railways. Particularly, details are provided on the methodology that has been adopted to set the safety requirements and to give preliminarly safety demonstrations. During the development of the ACC design, new drafts of European Standards have been circulated on the design and validation of railway signalling systems. Safety assessment activities compliant with the new European Standards have been started and integrated within the ACC safety process. The failure models presented in this paper have demonstrated that the ACC design requirements assure the system compliance with the required safety integrity levels. They also have allowed for the identification of the parameters to be measured by faults injection tests in an exhaustive experimental evaluation environment, which will be developed in the subsequent phases of the validation process.
Architecture and safety requirements of the ACC railway interlocking system
Aufbau und Sicherheitsanforderungen des ACC-Verriegelungs- und Sicherheitssystems der Italienischen Staatsbahn, nach einem Entwurf der Fa. Ansaldo Trasporti
1996
9 Seiten, 9 Bilder, 12 Quellen
Conference paper
English
Eisenbahn , Eisenbahnsignaltechnik , Signaltechnik , Sicherungstechnik , Signalanlage , Italien , Europäische Gemeinschaft , Norm , Sicherheitseinrichtung , Sicherheitssystem , Sicherheitsvorschrift , Sicherheitszeichen , Digitalsimulation , mathematisches Modell , Modelluntersuchung , Fehlersimulation , rechnerunterstützter Entwurf , Verriegelung , Europäische Norm
Novel Online Safety Observer for Railway Interlocking System
British Library Online Contents | 2013
|Novel Online Safety Observer for Railway Interlocking System
Online Contents | 2013
|