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were developed as the
means of harmonisation
for all 44 ECAC Member
States
1- National Aviation Authorities in EASA terminology;
National Supervisory Authority in SES terminology.
2- EUROCONTROL Safety Regulatory Requirements
16
FOCUS
Figure 2: Safety and ATM lifecycle
(NSAs) being associated with all the
relevant safety activities.
The results of the work conducted
so far on key performance indicators
in the context of SAFREP are
expected to be presented at the
next EUROCONTROL Provisional
Council meeting in December
2009. This work may provide a relevant
input to the development of
safety performance targets within
SES II.
The safety part of the performance
scheme could also provide an independent
check that achieved safety
levels are maintained and where
possible increased, i.e. that the
overall safety outcome from the set
of safety rules, oversight and certification,
ANS provision, aerodromes
and air operation arrangements
does not decrease, and if possible
improves.
Safety pillar and the SESAR
ATM Master Plan
Over recent years, there has been a
growing awareness within the aviation
community at large that the results
of research and
development could
be more effectively
used, notably to
steer industrial improvements,
to support
decision-making
and to contribute
validated inputs to
the development of
specifications, international
and European
standards and
even rules such as SES Implementing
Rules. Clearly, the SESAR Definition
Phase helped a lot in further raising
such awareness.
To be able to meet these more explicit
expectations, R&D must be structured
in a way which not only delivers mature
specifications for technical and operational
improvements, but also provides
robust justifications and evidence that
such technical and operational improvements
have been designed and
specified as “fit-for-purpose”.
One of the roles of the SESAR ATM
Master Plan is to strengthen and
where necessary introduce a performance-
driven approach to the future
European ATM system, both at system
development and operations level.
Fitness-for-purpose is therefore often
further qualified in that context in
terms of performance criteria. Since
safety is one of the performance drivers
of the SESAR ATM concept, the
operational and technical specifications3
which will result from the SESAR
Development Phase will need to have
been assessed as “safe in principle”, or
“safe by design” by the SESAR JU.
The performance management
scheme adopted in SESAR relies on
the application of a lifecycle-based
approach for the development and
application of
ATM changes.
(see Figure 2),
adopting an approach
based
on E-OCVM4.
The E-OCVM
provides a lifecycle
model
that maps development
and
Single European Sky II
Renewed focus on safety
One of the roles of the
SESAR ATM Master Plan
is to strengthen and
introduce a performancedriven
approach to the
future European ATM
system
3- Often in the form of OSED, SPR and INTEROP
documents as per the terminology used in EUROCAE
ED78A.
4- The European Operational Concept Validation
Methodology provides a framework for validation,
endorsed by the European Commission and
EUROCONTROL and mandatory for all European
collaborative ATM R&D projects.
ATM needs
V0 V1 V2 V3 V4 V5
Gather and assess
ATM performance
needs
Scope operational
concept and develop
validation plans
Iteratively develop
and evaluate concept
Build, consolidate
and test
Industrialisation
and approval
Implementation
Pre-pps Operational
Scope
Idea
Standards
Regulations
Certification
Focus of SESAR JU V&V
Implemented
concept
Transition criteria Transition criteria Transition criteria
Feasibility Integration
Safety Regulatory System (NSA/EC/EASA/SRC)
Safety case
Evidence collected
System Safety Assurance
Skyway 52 Summer & Autumn 2009 17
The way ahead
The implementation of the safety pillar of SES II will need cooperative work with all
relevant parties over the coming period, so as to ensure a smooth and safe transition
from existing ATM safety regulatory requirements, a well articulated interface with the
SES performance scheme, the airspace and interoperability regulations, as well as with
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Skyway Magazine, Summer & Autumn 2009(9)
