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marked the first time in history that air
traffic in one country had been controlled
from a centre located in another.
From the beginning, the MUAC has
pioneered numerous advances in
operational concepts, which have enabled
the safe and efficient management of the
rising levels of air traffic in Europe.
Today, it is one of the main building
blocks in the creation of the Single
European Sky (SES).
The New Flight Data Processing
System (N-FDPS)
On an operational level, the MUAC
introduced a fully paperless electronic
flight information system as long ago as
1993, eventually enabling the removal of
paper strips in the primary system. This
application of technology has significantly
improved controller productivity.
“We have paperless primary, standby
and fallback systems,” says Herman Baret,
Programme Manager for the New Flight
Data Processing System (N-FDPS) about
to enter service at the MUAC. “We’re sure
it will be the norm elsewhere within five
to ten years,” he says.
In November 2002, the MUAC
activated its new Operator Input and
Display System (ODS), a Human-
Machine Interface presenting air traffic
controllers with a clear overview of the
traffic situation. Since the introduction of
the former ODS in 1981 the latest ODS
has become one of the most significant
enablers for increasing safety and capacity.
“We believe it is what has allowed the
MUAC to maintain adequate capacity to
handle traffic growth in the last five
years,” says Baret.
One of the most fundamental technical
advances within the MUAC infrastructure,
the N-FDPS, is due to become
operational in 2008. Baret says the system,
which is the largest undertaking at the
centre in 30 years, will enable the
replacement of the existing route-based
flight data processing system with a far
more dynamic trajectory-based version.
“It will also provide extremely flexible
sectorisation, resulting in far more efficient
and flexible management of the airspace,”
he adds.
The N-FDPS trajectories will be
continuously updated with radar data and
inputs from the controller in order to
MUAC has
pioneered
numerous
advances in
operational
concepts, which
have enabled the
safe and efficient
management of
the rising levels of
air traffic in Europe
EUROCONTROL / IFATCA 2008: a collaborative approach to the future > Designing the network
41
The Maastricht Upper Area Control Centre pioneers the development and
implementation of new operational concepts and technologies. Julian Moxon
reviews its successes
MUAC R&D
▼
MUAC has the enviable reputation of being one of the
most cost-effective ACCs in Europe, with by far the highest
controller productivity
Communications (CPDLC) have been
used operationally since the end of the
1990s and a major milestone was achieved
in July 2001, when an American Airlines
flight to Paris Charles de Gaulle airport
was controlled by the MUAC using
computers to transmit clearances and
instructions via the Aeronautical
Telecommunications Network – a first in
aviation history.
In February 2005, the MUAC
introduced Automated CPDLC for
secondary radar code changes, further
reducing controller workload. Today, up to
35 different airlines are equipped to
exchange CPDLC messages with the
MUAC and do so on a daily basis. The
number of CPDLC log-ons is steadily
growing, reaching more than 33,000 in
2007 – a 50 per cent rise on 2006.
The MUAC has also been central to the
development of the Short-Term Conflict
Alert (STCA) system, a vital safety net, first
introduced in 1980, designed to maintain
high safety standards in the face of rising
traffic. A re-engineered STCA system was
successfully implemented and went into
operation in January 2007. It predicts
potential conflicts likely to occur within the
next 120 seconds and warns the controller
via a visual alert. The new system, which
includes a number of innovative features to
42
reflect the clearances provided to the
aircraft and to plan the most efficient and
safe flight profile. The trajectory can also
be updated by external sources, including,
for example, adjacent centres using the
On-Line Data Interchange system.
From a safety perspective, the N-FDPS
will facilitate the implementation of
advanced tools such as Medium-Term
Conflict Detection (MTCD), which will
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