8/16/2023 0 Comments Wc202 atc codeThe ARTCC facilities use computer displays extensively to provide real-time information to the controller. This is a special case where Restricted airspace precludes most air carrier traffic. In the west, Albuquerque Center has one sector where the controller works aircraft from the surface to 60,000 feet MSL. Sectors are adjusted according to the traffic they serve. For example, in areas of dense traffic one geographical area may have different sectors controlling aircraft below 18,000 feet MSL, another for altitudes between 18 and 28,000 feet, and a third for aircraft 29,000 thru 60,000 feet. The geographical area covered by each ARTCC spans several states and is divided into sectors both geographically and by altitude. As air traffic density moved west, new Centers were created to manage the flow and were initially built around densely populated areas. The Bureau of Air Commerce, within the Department of Commerce (DOC), took over their operation when it assumed responsibility for what was eventually known as “air traffic control” or ATC in July of 1936. A consortium of commercial airlines and airport operators established the first three Centers (Cleveland, Chicago and Newark) between 19. The BoundariesĬenter boundaries are oddly shaped, partially because they were not created at once. Others are recognizable if you are familiar with the suburb of a larger area in which they exist-ZOB is for Oberlin, Ohio outside of Cleveland, but it’s called Cleveland Center. Most are pretty obvious, ZAB-Albuquerque, ZDV for Denver. ■ can be used for a well-defined but diverse group of ingredients (e.g.Each ARTCC has a unique facility ID beginning with the letter Z. ■ used as Primary ambiguous link, in which ATC Class is represented with a particular group of Ingredients with a common trait ■ hierarchical (applied at the post-processing, gives +1 level of separation) – contains only one Ingredient Group, which is mentioned somewhere in the middle – starts either from the Ingredient Group or the word of combinations ■ applied to Multicomponent ATC Classes, which names: ■ ATC - RxNorm primary upward connects the 1st Ingredient Groups of Multicomponent ATC Classes to respective Rx/RxN Standard Ingredients ■ the presence of this link is a prerequisite for creating a ‘Maps to’ relationship_id ■ used as a Secondary unambiguous link for ATC Classes with clear and well-defined Ingredient(s) ■ ATC - RxNorm secondary lateral connects the 2nd Active Ingredient OR any subsequent Active Ingredient of a Multicomponent ATC Class to Rx/RxN Standard Ingredient ■ semantically, it is an equivalent to ‘Maps to’ relationship_id, and usually (except for exemptions) has such a pair in concept_relationship ■ used as a Primary unambiguous link for ATC Classes with a clear and well-defined Ingredient – the 1st Active Ingredient of Multicomponent ATC Classes with Standard Ingredients – Monocomponent ATC Classes with their full semantic equivalents in the form of main active Standard Ingredients ■ technically non-hierarchical, however, semantically it resembles the 'Subsumes' relationship_id with the reverse of 'Is a' ■ connects ATC Classes and Drug Products, but not Ingredients
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