CEI CLC/TR 50126-2 : 2008

INTRODUCTION
1 Scope
2 References
3 Definitions and abbreviations
4 Guidance on bodies/entities involved and concepts of
  system hierarchy and safety
5 Generic risk model for a typical railway system and
  check list of common functional hazards
6 Guidance on application of functional safety, functional
  safety requirements and SI targets, risk apportionment
  and application of SILs
7 Guidance on methods for combining probabilistic and
  deterministic means for safety demonstration
8 Guidance on the risk acceptance principles
9 Guidance on the essentials for documented evidence
  or proof of safety (Safety case)
Annex A (informative) - Steps of risk assessment process
Annex B (informative) - Railway system level HAZARDs -
        Check lists
Annex C (informative) - Approaches for classification of
        risk categories
Annex D (informative) - An illustrative railway system
        risk model developed for railways in UK
Annex E (informative) - Techniques & methods
Annex F (informative) - Diagramatic illustration of
        availability concept
Annex G (informative) - Examples of setting risk
        acceptance criteria
Annex H (informative) - Examples of safety case
        outlines
Bibliography

Specifies guidance on specific issues, for applying the safety process requirements in EN 50126-1 to a railway system and for dealing with the safety activities during the different system life cycle phases.