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60
70
80
90
100
0.2 0.4 0.6 0.8 1
ANSP average maturity for all study areas
Regulator average maturity for all study areas
ANSPs 2009
ANSPs 2008
ANSPs 2002
Reg. 2009
Reg. 2008
Reg. 2002
ATM safety today
6
8
FOCUS
improve their safety oversight processes,
especially when compared with equivalent
results for previous years. Audits from 2007
onwards demonstrate significant progress
over previous years, and it is evident that
the Single European Sky (SES) has contributed
very positively to these achievements,
by filling the gaps in the previously existing
national primary aviation legislation.
Measurin g safety
culture in ANSPs
Advances have been made in promoting
a positive safety culture and then measuring
its effects within ANSPs. Working with
colleagues across the industry and with
academia, at least 14 ANSPs have undertaken
safety culture surveys conducted
by EUROCONTROL (some have even been
measured twice).
The aim is for all 38 EUROCONTROL States
to be surveyed by 2013. Enhancing the
safety culture is one of the key challenges
which lie ahead and it is discussed further
in this article and more fully in a dedicated
article on pages 42-43.
SRC Annual Reports
The Safety Regulation Commission Reports
use a range of operational-based key
performance indicators (KPIs) to demonstrate
the level of ATM safety as measured
by accident/incident reporting of specific
ATM occurrences (‘lagging’ indicators),
namely accidents with a direct or indirect
ATM contribution.
ATM-related
incidents include :
n separation minima infringements
(SMI) (airborne incidents);
n airspace infringements;
n runway incursions (ground incidents);
n level busts;
n near-controlled-flights-into-terrain
(NCFITs).
The SRC data gathering and analysis
functions are encompassed by the
Safety Analysis Function EUROCONTROL
and associated Repository
(SAFER) concept, which also includes
the EUROCONTROL Voluntary ATM
Incident Reporting (EVAIR) scheme.
The SRC 2009 report shows that for 2008
and the accident data made available
by ICAO, there were no accidents with a
direct ATM contribution. Only two nonfatal
accidents were indicated as having
an indirect ATM contribution. The trend
in recent years shows that the absolute
number of accidents with an ATM
contribution continues to decrease.
The data also show an increase in
the total number of ATM-related
incidents reported of around 15% in
absolute numbers, while the overall
numbers of risk-bearing incidents
decreased. This increase in reporting
may be seen as a positive step
forward, allowing a better view of the
underlying safety problems in ATM.
In comparison with 2007, the results
show a decrease in the risk-bearing
categories serious incident (severity
A) and major incident (severity B)
(figure 2).
Whilst the results from the various
measurement schemes are encouraging,
it is clear that there is a need for
further improvements in several key
risk areas. EUROCONTROL, in collaboration
with its stakeholders and partners,
will continue to monitor and
identify trends and associated risks.
There is certainly no room for complacency.
The momentum needs to be
continued and built upon as ongoing
challenges now place even greater
demands on safety improvement.
ATM safety
Safe today, safer tomorrow
20
18
16
14
12
10
8
6
4
2
0
20,000,000
Accidents with direct
or indirect
ATM contribution
accidents
with direct ATM
Contribution ECAC
traffic levels
(2005-2008)
Trend in number
of accidents
15,000,000
10,000,000
5,000,000
0
2005 2006 2007 2008
140
Total ATM-related incidents
(occurence per million flight hours and severity)
120
100
80
60
40
20
0
600
800
1000
Total
Severity B
Severity A
400
200
0
2002 2003 2004 2005 2006 2007 2008
Figure 2
The trend in recent years
shows that the absolute
number of accidents
with an ATM contribution
continues to decrease.
Skyway 53 Spring 2010 9
Safe today ,
safer tomorrow
The ECAC safety target “...to ensure
that the numbers of ATM-induced
accidents and serious, or risk-bearing,
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