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4. Conclusion
In the context of this dossier, we have presented the basic SIL allocation method as applied in the field of railway signalling.
As a general rule, the same approach is applied to other railway subsystems, but IEC/IEC 61508 is increasingly used for ancillary parts (tunnel ventilation management system, trackside announcement system, etc.).
The railway sector, through the definition of standards describing what a railway system is, aims to define a railway system as a set of products. Building a railway system could be likened to building a LEGO, but with the need to check that the products are compatible.
Acceptance of products that have already been certified is therefore a major issue, requiring the implementation of cross-acceptance analyses.
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Bibliography
Websites
CENELEC http://www.cenelec.eu/Cenelec/Homepage.htm
COFRAC http://www.cofrac.frhttp://www.securite-ferroviaire.fr/
Standards and norms
- Applications ferroviaires. Équipements électroniques utilisés sur le matériel roulant - NF EN 50155 - 12-01
- Applications ferroviaires. Spécification et démonstration de la fiabilité, de la disponibilité, de la maintenabilité et de la sécurité (FMDS) - CENELEC EN 50126 - 01-00
- Railway applications. Signalling, telecommunication and processing systems – Software for rail control and protection systems - CENELEC EN 50128...
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ERTSS Embedded Real Time Software and System http://www.erts2012.org/
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LambdaMU http://www.imdr.fr
Regulations
Decree no. 2006-1279 relating to safety of railway traffic and to interoperability of railway system (October 19, 2006)
Decree no. 2003-425 relating to safety of public guided transit (May 9, 2003)
Decree no. 2008-1307 of December 11, 2008 amending decree no. 2003-425 of May 9, 2003 on the safety of guided public transport from 1 er ...
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