2. Airspace
2.1.1 ATS Airspace
| Airspace | Airspace Class | Vertical Limits | Transition Altitude | Transition Level |
|---|---|---|---|---|
| Doha CTR | D | Surface to 2,500FT | 13,000FT | FL 150 |
| Doha TMA 1 | C | 2,500FT to 4,500FT | 13,000FT | FL 150 |
| Doha TMA 1A | C | 2,500FT to 4,500FT | 13,000FT | FL 150 |
| Doha TMA 2 | C | 3,500FT to 4,500FT | 13,000FT | FL 150 |
| Doha TMA 3 | C | 4,500FT to FL 150 | 13,000FT | FL 150 |
| Doha TMA 3 | A | FL 150FT to FL 245 | 13,000FT | FL 150 |
2.2 Areas of Responsibility
Table 2.2-1. - Doha Terminal Maneuvering Area (TMA)
Table 2.2-2 - Doha Terminal Maneuvering Area (TMA)
2.2.1 Concept
The Doha TMA Areas of Responsibility (AoR) are designed to minimise the need for coordination between sectors when climbing and descending traffic. This reduces controller workload, and allows a predictable flow of traffic through a complex network of SIDs and STARs.
These AoRs must be adhered to in order to prevent possible loss of separation between traffic.
For easy identification, each AoR is represented by lined and coloured areas and shades of burgandy that are different intensities. The different shades represent different vertical extents of each AoR and thus mean that each sector will have a minimum or maximum altitude that traffic may be cleared to. However, for clarity, each AoR has also been given an alphanumeric identifier which will be used to define their vertical extents hereunder and the specific transfer procedures which are detailed in section 4.
Although this may initially seem complex, the use of visual AoRs to represent climb and descent limits is far more intuitive and versatile than other methods.
2.2.2 Level clearances
Where traffic is to be given a climb or descent to the vertical boundary of an AoR, the descent clearance shall be 500FT offset from the AoR boundary.
For example, if the AoR boundary is 7500FT, a descent clearance may only be given to a minimum altitude of 8000FT. Similarly, climbing traffic reaching the same AoR boundary may only be given a maximum altitude of 7000FT.
Clearances per the AoRs will facilitate compliance with published level restrictions on SIDs and STARs.
2.2.3 Transfer of control
Where aircraft cross between adjacent AoRs, transfer of control shall be made to the respective controller in accordance with the transfer procedures given in section 4.
2.2.4 AoR Sectors
2.2.4.1 Doha Radar Sectorisation
- Covers Area R1 from 4,500FT to FL245
- Covers Area R2 from FL170 to FL245
- Covers Area A1 from 12,000FT to FL245
- Covers Area R1 from 4,500FT to FL245
- Covers Area A1 from 12,000FT to FL245
2.2.4.2 Doha Approach/Director Sectorisation
| Callsign | Sector | Area of Responsibility |
|---|---|---|
| DOH_A1_APP | Approach (East) | Covers Area A1 from 3,500FT to 12,000FT Covers Area F1 from 4,000FT to 12,000FT |
| DOH_A2_APP | Approach (West) | Covers Area A2 from 2,500FT to 12,000FT Covers Area F2 from 4,000FT to 12,000FT |
| DOH_F1_APP | Director (East) | Covers Area F1 from 2,500FT to 4,000FT |
| DOH_F2_APP | Director (West) | Covers Area F2 from 2,500FT to 4,000FT |
2.2.5 Sector Responsibilities
Below is a table outlining the Doha TMA sectors and their areas of responsibility.
| Logon | Sector | Radio Callsign | Area of Responsibility |
|---|---|---|---|
| DOH_R1_APP | Radar (North) | "DOHA RADAR" | Departure Services for: ALSEM, ALVEN, LUBET, TULUB, VAXIN Arrival sequencing for: TOSNA, ALKAN, HAYYA |
| DOH_R2_APP | Radar (South) | "DOHA RADAR" | Departure Services for: BUNDU, DATRI, KUPRO, ULIKA Arrival sequencing for: TOVOX, LAEEB, ORLEK |
| DOH_A1_APP | Approach (East) | "DOHA APPROACH" | Departures/Arrivals for runway 16L/34R |
| DOH_A2_APP | Approach (West) | "DOHA APPROACH" | Departures/Arrivals for runways 16R/34L & 15/33 |
| DOH_F1_APP | Director (East) | "DOHA DIRECTOR" | Final approach sequencing for runway 16L/34R |
| DOH_F2_APP | Director (West) | "DOHA DIRECTOR" | Final approach sequencing for runway 16R/34L |
| DOH_F3_APP | Final Monitoring Control | "DOHA FINAL MONITORING" | Monitors for NTZ intrusions |
| DOH_MIL_APP | Military Director | "DOHA MILITARY DIRECTOR" | Radar Services for Al-Udeid Airbase |
2.3 Holding Procedures
| Hold Identifier | Vertical Limits | Inbound Holding Course | Speed / Leg Time | Turn Direction |
|---|---|---|---|---|
| VELAM | 8000FT - 13,000FT | 117° | 230 | Right |
| BAYAN | Above 8000FT | 229° | 1.0 | Left |
| AFNAN | 8000FT - 13,000FT | 268° | 1.0 | Right |
| KIVAM | 8000FT - 13,000FT | 263° | 1.0 | Right |
| EMEXA | Above 8000FT | 040° | 1.0 | Left |
| GINTO | Below 10,000FT | 087° | 1.0 | Right |