• ICAO CIR335
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ICAO CIR335

  • Circular 335 - Air Traffic Management Service Delivery Management (ATM SDM) (Cir 335-AN/194)
  • Bulletin / Circular by International Civil Aviation Organization, 2014
  • Publisher: ICAO

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Air traffic management service delivery management (ATM SDM) is one of the seven components of the Global ATM Operational Concept (GATMOC). It is about balancing and consolidating decisions across the other six concept components and their ATM processes and services, as well as the time horizon at which, and the conditions under which, these decisions are made.

The respective foci of the ATM processes and services under th other six concept components are:
  • airspace organization and management (AOM): selecting and establishing airspace structures;
  • aerodrome operations (AO): providing the ground infrastructure that supports the provisions of services by ATM;
  • demand and capacity balancing (DCB): the strategic evaluation of traffic demand and system capabilities;
  • traffic synchronization (TS): the establishment of an orderly flow;
  • airspace user operations (AUO): sharing with the ATM system operational information that would improve performance; and
  • conflict management (CM): the use of three layers to reduce the risk of collision.

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