This document is intended for useby airspace planners as a basis for changing separationminima. It should be read in conjunction with the. Annex Edition Air Traffic Services Doc Procedures For Air Navigation Services. Air Traffic Management Doc Edition 5. Regional Supplementary Procedures Doc Edition 3. Air Traffic Services. Air Traffic Management. Edition 4. Edition 2. Programme Budget of the Organization Doc Level Bust. Content source:. Content control:.
Description The proper planning and design of routes, holding patterns , airspace structure and ATC sectorisation in both terminal and en-route airspace can be effective in reducing the likelihood of level bust incidents.
Typical Scenarios A standard instrument departure SID requires pilots to level at an intermediate altitude until passing a specified point. The pilot fails to stop at this intermediate altitude and loses separation with an aircraft above. The pilot does not notice this and becomes confused when the DME range decreases rather than increases. A non-precision approach begins at a fix defined by bearing and distance from a radio facility.
The pilot has difficulty flying to this fix and descends the aircraft outside the calculated safety zone. A non-precision approach specifies a descent path by means of a series of fixes and corresponding check heights. The descent path consists of a series of steps rather than a continuous descent and the pilot has difficulty in establishing a stabilised approach. DateEntered byNo.
It is envisioned that the airspace planning method-ology will become a part of a larger document dealing withimplementation issues. The methodology presented in this document providesa framework by which airspace characteristics, aircraftcapability and traffic demand can be assessed for thepurpose of determining safe separation minima for en-routeoperations.
The methodology has been designed to ensurethat the intended safety level for a proposed airspace meetsthe required standard. Airspace planners will be able toassess different scenarios for airspace development. Administrations may use the methodology as a tool to assistthem in determining the sequence and nature of decisionsrequired to establish safe separation minima.
However, it isrecognized that, in some cases, application of the method-ology may require risk analysis expertise which may not beavailable in all administrations. In these cases, furthertechnical advice and support should be obtained fromICAO. Relationship to otherICAO documentsExisting ICAO documents do not indicate methods forquantifying the effect a change of separation minima mayhave on air traffic safety.
This document is intended for useby airspace planners as a basis for changing separationminima. It should be read in conjunction with the.
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