the major transport domains, and notably in aeronautical applications, satellite
navigation has long been an additional means of localisation. The development of
GPS has provided a supplementary positioning service for many flight phases, in
leisure flying as well as commercial air transport. Refining and improving
satellite navigation through EGNOS and
GALILEO will assist pilots in all flight
phases, the movement on the ground, to take-off, en-route flying, and landing in
all weather conditions, reaching the level of safety that will be required to
cope with the continuous increase in the number of flights.
Some examples of
practical uses of GALILEO:
will be used in all the flight phases of commercial aircraft. During en-route
flight, the availability of both GPS and GALILEO will ensure high robustness
through the redundancy and high reliability of the service.
the future, higher accuracy and service integrity will allow aircraft
separation to be reduced in congested airspace, to cope with traffic growth.
In recent years, scheduled traffic has increased by about 4% per year
world-wide. This trend would double the number of flights within 20 years. As a
consequence, several intense pressure points and bottlenecks are forming in
some areas of the network. There needs to be a significant rise in traffic capacity
short term. Augmentation of the capacity requires increasingly reliable
and accurate positioning systems and associated monitoring - provided by
adding Galileo to the existing radio
need of commercial operators during critical flight phases, such as take-off and landing, is to
operate in all weather conditions. As
a consequence, precision approach is mandatory for a
gate-to-gate navigation system. GALILEO, with the aid of ground based
augmentation (local elements), will satisfy the needs for precision
approach as defined in the aeronautical standards, and could
replace or complement the navigation infrastructure of airports in regions
where the system is inadequate. For example, some airports are not equipped with
instrument landing systems (ILS). GALILEO offers many benefits for overall safety and optimisation of schedules and routes.
It will also help to increase runway capacity by shortening runway
occupancy time. There will be savings in time and fuel,
and reductions in noise.
heading, speed, and time information are
needed by air traffic controllers for the continuous management of all aircraft. Some areas of the world lack the
infrastructure, including secondary radar and
communication links. For example, in the Canary Islands it is available only intermittently
, and the radar service is limited
and without backup. The standardised transmission from the aircraft of
navigation data obtained via GALILEO will lead to
advanced systems and techniques for safer air traffic monitoring.
Surface movement and guidance
an aircraft on the ground requires assistance from the air traffic
controllers as precise as that during flight. The airport may have surface radar, but sometimes the taxi
movements are reported manually by the pilots and the aircraft is managed using visual aids only. Severe accidents have
this supposedly safe phase. GALILEO – together with its local
elements and communications links - will improve the safety of these
operations, creating the means for integrated surface movement guidance and
and satellite navigation will be available for all kinds of aviation activities, such as ultra-light
aircraft, balloons and recreational flights. The integration of position information and
communication links opens up a wide range of applications.
safety-of-life service of GALILEO and the EGNOS signal can be used to guide and
land Search and Rescue helicopters in bad weather conditions such as low
visibility and fog, where helicopter operations were previously not possible.
This will significantly improve the availability of medical helicopter services
for severe road accidents, which often occur in bad weather conditions. GALILEO
and EGNOS technology will also lead to more reliable use of helicopters in
general for urgent hospitalisation.
GALILEO with other technologies, the aviation community can
- increased safety through an
additional independent satellite constellation with no common modes of
navigation system built to aeronautical safety requirements
performance to complement ground infrastructure
safety of navigation in all flight phases
efficiency in flight operations management, improving exploitation
of the airspace
navigation of rescue helicopters under all weather conditions
Aviation (85 Kb)