Air Traffic Management Concept Baseline Definition - The Boeing ...

standards are introduced the expense involved could well make the development of such
aircraft impossible...IATA assessed the loss in fleet resale value as a result of introducing
any such new constraints at as much as $5bn to $10bn. [Ref. 4, page 161-162] (ENV),
(S)
• A European-sponsored committee declared that ‘eliminating aircraft congestion in the
air and on the ground is by far the most efficient way to reduce the impact of air transport
on the environment. It can and must be achieved as a matter of absolute priority.’
Moreover...the aerospace industry lobby is particularly concerned to insure that ICAO is
made well aware of the technical problems for the aerospace manufacturers which would
result from the recommendation of new (and more stringent) environmental regulations
for the aviation community. [Ref. 4, page 162] (ENV), (S), (T)
Issue # 6: Air Travel and Alternatives
• ...a corporate air travel survey by IATA’s market and economic analysis division appears
to indicate that the impact...of various forms of innovative electronic communications has
been, and may well be in the future, less severe that some reports have suggested...much
of the growth of video-conferencing over the past few years seems to have been due more
to the effects of recession, with businessmen cutting travel costs, than to any improvement
in business efficiency stemming from advanced electronic communications systems. [Ref.
4, page 85-87] (T)
Issue # 7: GPS and Satellite-based Navigation Issues
• ...while optimistic, the international aviation community continues to express trepidation
about investing preferentially in a satellite-based system that is currently controlled and
operated by U.S. DOD. Consequently, much work has been conducted by the
international community to develop and implement a GNSS, which may not include GPS.
Potential GNSS architectures may include the Russian Glonass, yet-to-be developed
private systems, or other satellite systems which may carry GNSS signals, such as those
proposed by the IRIDIUM consortium and Inmarsat. [Ref. 9, page 3-49] (S), (T)
• There are a number of GPS (and other satellite systems) navigational error sources
which are being addressed by various government, industry, and academic institutions.
These include: 1) Satellite Clock and Ephemeris errors, 2) Atmosperic related Ionosphere
and Troposphere errors, 3) Receiver Errors such as Multipath, Oscillator, Tracking Delay,
Noise, Filter Bias, 4) System Errors including Selective Availability and Geometry, and
other sources. Although alternate mitigation schemes are being proposed that minimize the
effects of these potential GPS-based navigation errors, the uncertainties associated with
system integrity and availability of satellite-based operations persist, in particular during
precision approach and landing (> Cat II, III) phases of flight. [Ref. 9, page 3-53-58] (T),
(O)
Issue # 8: ATC Systems Architecture
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