Air Traffic Management Concept Baseline Definition - The Boeing ...
Air Traffic Management Concept Baseline Definition - The Boeing ...
Air Traffic Management Concept Baseline Definition - The Boeing ...
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Special Committees. <strong>The</strong> paper, with minor modifications, was also submitted to the<br />
International Civil Aviation Organization (ICAO) Separation Panel meeting later in 1996.<br />
<strong>The</strong> paper states that the definition of required air navigation system performance should<br />
encompass navigation, communications and monitoring (or surveillance) performance and<br />
provide a related, high level characterization of the air navigation environment, RSP. <strong>The</strong><br />
thesis of the paper is that RSP is best characterized by the traditional airspace attribute of<br />
separation minima. <strong>The</strong> paper asserts that the concept of separation minima is the primary<br />
airspace performance determinant.<br />
As indicated in Figure 2.11, for procedural environments, this separation standard is<br />
primarily related to navigation performance. In radar environments, however, with direct<br />
controller-pilot voice communications, each of the communications, navigation and<br />
surveillance (or monitoring) factors becomes important in a complex interaction of aircraft<br />
navigation, air-ground communications, radar surveillance and air traffic service-airplane<br />
interaction. Thus the concept of RSP necessarily contains elements of navigation,<br />
communications and surveillance performance. <strong>The</strong>se RSP components establish the basis<br />
for an environment in which operational access approval is explicitly performance-based,<br />
in place of current practice in which the basis of approval is indirect and implicitly related<br />
to capability, based on equipage sets including navigation sensors used.<br />
95%<br />
Navigation<br />
Performance<br />
(nm)<br />
20<br />
16<br />
12<br />
8<br />
Procedural Environments<br />
Oceanic Base Operation<br />
NATS MNPS<br />
Proposed RNP 4<br />
Standard<br />
RNP 4 with Proven<br />
Containment Standard<br />
RADAR Standard<br />
4<br />
100 80 60 40 20 0<br />
LATERAL SEPARATION MINIMA (nm)<br />
Figure 2.11 System Performance and Separations<br />
A key element to the successful definition of system performance is that the rare- and nonnormal<br />
system performance will fundamentally drive system safety-related performance.<br />
Thus, required navigation performance (RNP) must address 95% accuracy for navigation<br />
availability and navigation system integrity level supported. Similarly, for communications<br />
and monitoring, the normal, rare-normal, and non-normal (both detected and undetected<br />
failure rates) must be specified, to insure system design that will support the future mission<br />
capacity, safety and efficiency levels.<br />
21