General Air Traffic (GAT) encompasses all flights conducted in accordance with the rules and procedures of ICAO and/or the national civil aviation regulations and legislation.
GAT can include military flights for which ICAO rules and procedures satisfy entirely their operational requirements.
General Aviation encompasses all civil aviation operations other than scheduled air services and non-scheduled air transport operations for remuneration or hire. (I)
I
Integrated Initial Flight Plan Processing System (IFPS) is the CFMU system in charge of receiving and processing the GAT IFR flight plan data and associated update messages for the area covered by the participating States. It subsequently distributes these messages in a format, which can be received and processed automatically by ATC Flight Plan Processing Systems (FPPS) and the CEU (West) without further intervention. The IFPS is installed in two geographical sites.
K
Known Traffic Environment (KTE) is the environment within which all traffic is known to ATS.
L
Level 1 -Strategic ASM is the act of defining and reviewing, as required, the national airspace policy taking into account national and international airspace requirements.
Level 2 -Pre-Tactical ASM is the act of conducting operational management within the framework of pre-determined existing ATM structure and procedures defined in Level 1 and of reaching specific agreement between civil and military authorities involved.
Level 3 -Tactical ASM is the act, on the day of operation, of activating, de-activating or real-time reallocating of airspace allocated in Level 2 and of solving specific airspace problems and/or of individual OAT/GAT traffic situations in real-time between civil and military ATS units and/or controllers, as appropriate. This co-ordination can take place either in active or passive mode with or without action by the controller.
M
Manoeuvring Area is that part of an aerodrome to be used for the take-off, landing and taxiing of aircraft, excluding aprons. (I)
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N
Notice to Airmen (NOTAM) is a notice distributed by means of telecommunication containing information concerning the establishment, condition or change in any aeronautical facility, service, procedure or hazard, the timely knowledge of which is essential to personnel concerned with flight operations. (I)
O
Off-Route Traffic encompasses all GAT flying outside the published ATS Routes Network.
On-Route Traffic encompasses all GAT flying along the published ATS Routes Network.
Operational Air Traffic (OAT) encompasses all flights which do not comply with the provisions stated for GAT and for which rules and procedures have been specified by appropriate national authorities.
OAT can include civil flights such as test-flights, which require some deviation from ICAO rules to satisfy their operational requirements.
P
Permanent ATS Route is a permanently designated ATS route which is not subject to daily management at Level 2 by AMCs.
Pre-Tactical Civil/Military Co-ordination (see definition of Level 2 -Pre-Tactical ASM).
Prior Co-ordination Airspace (PCA) is a portion of airspace of defined dimensions within which individual GAT is permitted to fly "off-route" only after prior co-ordination initiated by GAT controllers with OAT controllers.
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