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Air Traffic Control System

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Njood eissa

on 16 December 2013

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Transcript of Air Traffic Control System

Air Traffic Control System
In the United States, there are about 5,000 airplanes in the sky every hour.
That means about 50,000 aircrafts in our skies each day.
How do these aircrafts keep from colliding with each other?
How does air traffic move into and out of an airport ?

Air Traffic Control System
ATC must coordinate the movements of thousands of aircraft, keep them at safe distances from each other.

ATC direct the aircrafts during take off and landing from airports.
Air traffic control system divisions
Air Traffic Control System Command Center (ATCSCC)
: oversees all air traffic control & manages air traffic control .
Air route traffic control centers (ARTCC)
manages traffic within all sectors of its center.
Terminal radar approach control (TRACON):
handles departing and approaching aircraft within its space.
Air traffic control tower (ATCT):
is located at every airport that has regularly scheduled flights.
Flight service station (FSS) :
 provides information (weather, route, terrain, flight plan) for private pilots flying into and out of small airports.

How ATCS works ?
Take OFF
pilot activates a transponder device inside the aircraft.

departure controller
 is located in the TRACON facility,  monitor the aircraft and must maintain safe distances between ascending aircraft and gives instructions to pilot .
En Route and Descent

Once the plane has left TRACON airspace, it enters a sector of the ARTCC airspace.

ATC direct the aircrafts around bad weather and ensure that traffic flows smoothly with minimal delays.

ATC run by the Federal Aviation Administration (FAA).

Organize the flow of traffic
prevent collisions
provide information and support for pilots
In some countries, ATC plays a security or defensive role, or is operated by the military
Enforces (traffic separation rules): that ensure each aircraft maintains a minimum amount of empty space around it at all times.

- There is no room for error

- constant stress: a lot of necessary information and documents

- Time limit

Since 1970s air travel has increased. This has put excessive pressure on the air traffic control system to handle the nearly 50,000 flights per day.

FAA and NASA have developed modern software, upgraded existing host computers and voice communications systems and based full-scale GPS to help air traffic controllers track and communicate with aircraft.
increasing airport capacity by building new runways and airports
How the distributed systems principles studied applied
Air Traffic Control system
is a distributed systems with high‐performance computing tasks
Data sharing: exchange of information and data - cooperative work
Transparency: Access – Location - Concurrency

[1]Craig Freudenrich. How Air Traffic Control Works [Online]. Available:
[3] Air traffic control [Online]. Available:

Thank you
Nojood AlEissa
Hebah AlGhamdi

How ATCS works ?
How ATCS works ?
Preflight :
1.Pilot inspects the plane
2.Review a flight plan with the tower.

In the
, controller called a
flight data person
 reviews the weather and flight-plan information and enters it into the FAA host. computer.
The computer generates a
 flight progress strip
that will be passed from controller to controller throughout flight. 
ground controller
 is responsible for all ground traffic &
local controller
 in the tower watches the skies above the airfield for 5 miles after take off.

:When the airport enters TRACON airspace. An 
approach controller
 directs to the pilot to adjust the aircraft's heading, speed and altitude to prepare for landing.

The local controller in the airport tower checks the runways and the skies above the runways .[1]

Approach :When the airport enters TRACON airspace. An approach controller directs to the pilot to adjust the aircraft's heading, speed and altitude to line up and prepare to land along standard approach corridors.

Landing: The local controller in the airport tower checks the runways and the skies above the runways .[1]


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