Guidance for Use of CSM Recommendation - ERA - Europa

European Railway Agency
Collection of examples of risk assessments and of some possible tools
supporting the CSM Regulation
ANNEX I - EXPLANATION OF THE PROCESS
IN THE CSM REGULATION
1. GENERAL PRINCIPLES APPLICABLE TO THE RISK
MANAGEMENT PROCESS
1.1. General principles and obligations
1.1.1. The risk management process covered by this Regulation shall start from a definition of
the system under assessment and comprise the following activities:
(a) the risk assessment process, which shall identify the hazards, the risks, the
associated safety measures and the resulting safety requirements to be fulfilled by
the system under assessment;
(b) demonstration of the compliance of the system with the identified safety
requirements and;
(c) management of all identified hazards and the associated safety measures.
This risk management process is iterative and is depicted in the diagram of the
Appendix (of the CSM Regulation). The process ends when the compliance of the system
with all safety requirements necessary to accept the risks linked to the identified
hazards is demonstrated.
[G 1] The risk management framework for the CSM and the associated risk assessment process
are illustrated in Figure 1. When judged necessary, each box/activity of this figure is
described further in a specific section of this document.
[G 2] CENELEC advises that the risk management and risk assessment processes are described
in a safety plan. But if this is not convenient for the project, the associated description can
be included in any other relevant document. Refer to section 1.1.6.
[G 3] The risk assessment process starts from a preliminary system definition. During the project
development, the preliminary system definition is updated progressively and is replaced by
the system definition. If there is no preliminary system definition, the formal system definition
is used for performing the risk assessment. But then, it is useful that all the actors
concerned by the significant change meet at the beginning of the project in order:
(a) to agree on the overall system principles, system functions, etc. In principle this could
be described in a preliminary system definition;
(b) to agree on the project organisation;
(c) to agree on the sharing of the roles and responsibilities between the different actors
already involved, including the NSA, NOBO and ISA where relevant.
Such a co-ordination, during the preliminary system definition for example, provides the opportunity
to the proposer, the sub-contractors, NSA, NOBO and ISA, if relevant, to agree at
an early stage regarding the codes of practice or reference systems that are acceptable to
use within the project
Reference: ERA/GUI/02-2008/SAF Version: 1.1 Page 22 of 105
File Name: Collection_of_RA_Ex_and_some_tools_for_CSM_V1.1.doc
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