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
C.11.
C.11.1.
C.11.2.
C.11.3.
C.11.4.
C.11.5.
C.11.6.
Risk assessment example of an application for approval of a new
rolling stock type
Remark: this example of risk assessment was not produced as a result of the application of
the CSM process; it was carried out before the existence of CSM. The purpose of the
example is:
(a) to identify the similarities between the existing risk assessment methods and the CSM
process;
(b) to give traceability between the existing process and the one requested by the CSM;
(c) to provide justification of the added value of performing the additional steps (if any)
required by the CSM.
It must be stressed that this example is given for information only. Its purpose is to help the
reader understanding the CSM process. But the example itself shall not be transposed to or
used as a reference system for another significant change. The risk assessment shall be
carried out for each significant change in compliance with the CSM Regulation.
This example of risk assessment is related to an application for approval of a new type of
rolling stock. A risk analysis was performed to evaluate the risks related to the introduction
of a new freight wagon.
The purpose of the change was to increase the efficiency, capacity, performance and reliability
for the transport of bulk goods on a specific freight line. As the wagons were intended
for cross border traffic, an approval by two different NSAs was also needed. The proposer
was the freight operator which is in turn owned by the company producing the goods to be
transported.
The project development comprised the construction, manufacturing, montage, putting in to
service and verification of the new rolling stock. The risk analysis was performed to verify
that the new design fulfilled the safety requirements for each of the sub-systems as well as
for the complete system.
In the risk analysis, reference is made to the CENELEC EN 50126 procedures and
definitions and the risk evaluation is performed according to this standard.
In comparison to the CSM process, the following steps were applied:
(a) system description [section 2.1.2]:
For each of the design phases, there were requirements on the safety verification
documentation and description of the system design:
(1) conceptual phase: preliminary description of the operating demands of the
operator;
(2) specification phase: functional specification, applicable technical standards, plan
for testing and verification. Requirements from the operator on the use and
maintenance of the wagon were also included;
(3) manufacturing phase: technical documentation of the manufacturer, including
drawings, standards, calculations, analysis etc. In depth risk analysis for new or
innovative designs or new areas of use;
(4) verification phase:
(i)
the manufacturer‘s verification of the technical performance of the wagon
(test reports, calculations, verifications in compliance with standards and
functional requirements);
Reference: ERA/GUI/02-2008/SAF Version: 1.1 Page 89 of 105
File Name: Collection_of_RA_Ex_and_some_tools_for_CSM_V1.1.doc
European Railway Agency ● Boulevard Harpignies, 160 ● BP 20392 ● F-59307 Valenciennes Cedex ● France ● Tel. +33 (0)3 27 09 65 00 ● Fax +33 (0)3 27 33 40 65 ● http://www.era.europa.eu