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Definitions and abbreviations ADS-B. Automatic dependent surveillance – broadcast. A means by which aircraft can automatically transmit and/or receive data such as identification, position and additional data, as appropriate, in a broadcast mode via datalink....

Altimeter setting procedures Altimetry Aircraft maintain their level primarily with reference to a calibrated barometer, known as an altimeter, that is set to a specified pressure setting. As atmospheric pressure decreases with altitude, measuring the pressure...

Separation is required to ensure there is always a minimum distance between aircraft to minimize the risk of collision. This is provided by means of position reports, or by identification on radar. There are two main types of separation employed by ATC: verti...

Procedures for departing aircraft General At aerodromes where standard instrument departures (SIDs) are established, departing aircraft should normally be cleared to follow an appropriate SID If no specific procedures are established or aircraft are unable ...

General Procedures Aircraft identification For aircraft to be provided ATS surveillance services, aircraft identification must be established, and the pilot informed. Identification should then be maintained until the termination of ATS surveillance. Identi...

General provisions Aerodrome control towers issue information and clearances to aircraft under their control to achieve a safe, orderly, and expeditious flow of air traffic at and in the vicinity of an aerodrome. The main objective of aerodrome controllers is...

General Speed control is one of the most desirable ways to achieve or maintain a desired separation between aircraft. In general, it results in the smallest increase in controller workload and is particularly useful when sequencing aircraft (such as towards a ...

General Vectoring is achieved by instructing aircraft to maintain a heading that will result in it following a desired ground track. It is one of the most effective techniques to establish and maintain horizontal separation between traffic and is far more effe...

General During various phases of flight, level changes by aircraft may be necessary for the purpose of separation. When issuing a level change clearance, vertical and horizontal separation between aircraft shall always be assured. Controllers must ensure that ...

General Vertical speed is a useful method of maintaining separation between aircraft that are climbing or descending. Aircraft may be instructed to maintain a specific climb or descent rate. This is most useful when aircraft are climbing or descending through ...

General Holding is an instrument procedure employed by ATC as a delay tactic to manage the rate of traffic flow into a terminal area, to ensure that its capacity is not exceeded during peak arrival times, as well as times when traffic flow rate is constrained...

Procedure design RNAV arrivals Most RNAV STARs are “trombone” type arrivals, which allow aircraft to absorb arrival delay, and minimize the requirement for vectoring when sequencing aircraft, greatly reducing controller workload and frequency congestion during...

Departure separation General Departure separation often has a major effect on the handling capacity of an aerodrome. Effective use of departure separation and departure sequence planning maximizes efficiency while still complying with minimum time-based separa...

Purpose This SOP shall standardise ATC operations for the Alger ACC on VATSIM. All information and procedures described in this SOP are for VATSIM use only and must not be used for navigation. Scope ATC members are expected to practise the defined procedures w...

ATS Stations Callsign Callsign Frequency Frequency Abbr. DAAA_I_CTR ALGER CONTROLE / Algiers Control INF. 127.300 MHz AI DAAA_S_CTR ALGER CONTROLE / Algiers Control SUP. 132.450 MHz AS DAAA_NO_CTR ALGER CONTROLE / Algiers...

(AI) Centre Inférieur AI Sector is a high workload, low en route sector that coordinates between DAAGAPP and AS to ensure arrivals are sequenced into Algiers and departures do not conflict with aircraft transiting the AS sector. Additionally, AI offers numerou...

SECTEUR (SC) Sud-Centre SECTEUR (SO) Sud-Ouest SECTEUR (SE) Sud-Est SECTEUR (SS) Sud-Sud

Aerodrome Description Houari Boumediene Airport (IATA: ALG; ICAO: DAAG), also known as Algiers International Airport, serves Algiers, Algeria's capital. Algiers International Airport is the largest in the country by both size and capacity, serving over 20 air...

General Provisions The GND controller’s callsign for radio communication and coordination is “Algiers Ground.” The GND controller is the first station for all departing aircraft (IFR/VFR) to call and is responsible for operations on the surface of Algiers In...

General Provisions The aerodrome controller’s (TWR) callsign for radio communication and coordination is “Algiers Tower.” Tower (TWR) is responsible for all aerodrome movements on runways and their associated taxiways, and all operations within the Algiers C...