| Above
Ground Level: |
| The
aircraft’s height in MSL minus the area in question’s
height in MSL. |
|
| |
| Arrival:
|
| An
aircraft destined to land at the airport in question. |
|
| |
| ARTCC
(Air Route Traffic Control Center): |
| One
of 22 regional centers used to control the nation’s
en route airplane traffic. |
|
| |
| Compatible
Land Use: |
The
development of lands so that they are compatible
with aircraft noise, i.e., commercial or industrial
development rather than residences, schools, or
hospitals or other noise sensitive uses. |
|
|
| |
| Departure:
|
| An
aircraft that has taken off from the airport in question. |
|
| |
| En
route: |
| Airspace
outside the terminal environment of a given airport.
Aircraft are in en route airspace when they are
operating between departure and destination terminal
areas. |
|
|
| |
| Flight
Track: |
| The
path of an aircraft; the path on the ground of the aircraft
in flight. |
|
|
| Heading:
|
| The
direction, described in compass degrees (0 to
360), that an aircraft flies to achieve an intended
track or route. |
|
|
|
| Operation:
|
| An
aircraft arrival, departure, or overflight. |
|
|
|
| Overflight: |
An
aircraft operation neither departing from, nor
destined for, the airport in question. Also used
as a term to generically (as opposed to identifying
it more specifically as an arrival or departure)
describe an aircraft that flies above a location
in question. |
|
|
|
| Mean
Sea Level: |
An
altitude as expressed in feet above or below the
average level of the sea for all tide levels.
Since aircraft fly over a variety of terrains,
indicating altitude in feet above those varying
terrains would be useless; instead, a reference
to sea level, the average of which remains unchanged,
is used. Above Sea Level and Mean Sea Level are
used interchangeably, but MSL is the term used
in aviation. |
|
|
|
| NADT: |
Noise
Abatement Departure Track. A flight track used
to concentrate departures, the noisier operations,
over less noise-sensitive, more compatible land
uses. |
|
|
|
| Operational
Flow: |
at
Hartsfield-Jackson Atlanta International Airport there
are only two directions that aircraft may land
and take-off—east or west. This is due to
fact that all four parallel runways are aligned
in an east/west configuration. The direction selected
by air traffic controllers is dependent on the
prevailing winds on a given day. |
|
|
|
| STAR
(Standard Terminal Arrival Route): |
Used
to funnel arrivals into an airport’s terminal
airspace. STARs provide transition from the en
route airspace to the terminal area. |
|
|
|
| Terminal
Airspace: |
An
area, typically 40 nautical miles in radius, around
certain airports. This area’s air traffic
is managed by the TRACON, rather than one of the
22 ARTCCs around the nation. A general term used
to describe airspace in which approach control
service or airport traffic control service is
provided. |
|
|
|
| TRACON
(Terminal Radar Approach Control): |
Provides
radar ATC services to aircraft operating in the
vicinity of one or more civil and/or military
airports in a terminal area. |
|
|
