Post on 16-Nov-2021
Aircraft Movement– India FIRs
64%
20%15%
1%
0
500
1000
1500
2000
2500
3000
3500
4000
Domestic International Overflying Others
Sample data: AAI
Fleet Distribution – India FIR
43%
18%
7%5%
3%2%
21%
A320 B737 B777 A332 B787 A388 B747 A359 OTHERS
Sample data: AAI
0.5%
0.5%
Fleet Distribution - Arabian Sea
38.1
18 15.4 14
6 4.5 4
B777 A320 B738 A333 A388 A359 OTHERS
% A
/C
A/C TYPE
Sample Data AAI
244
155 132
20
171
81
458/87.7%
205/ 32.3% 141/
6.8%
25/25%
166/‐2.9% 96/
18.5%
0
50
100
150
200
250
300
350
400
450
500
L301/RASKI N571/PARAR P574/TOTOX N563/REXOD M300/LOTAV P570/KITAL
No of M
ovem
ent
Traffic Dispersion/Routing Analysis 20 Feb vs 27 February 2019
Contingency Management
290
147 148
19
16386
688
262179
30
286
106137.2
78.2
20.957.9
75.5
23.3
L301/RASKI N571/PARAR P574/TOTOX N563/REXOD M300/LOTAV P570/KITAL
Traffic Dispersion/ Routing Analysis23 Feb vs 02 March 2019
23‐Feb 2‐Mar % RISE
No.of M
ovem
ents
Contingency Management
Hourly Traffic – Mumbai FIR on 04th Mar 2019ROUTE L301 N571 P574 N563 M300 P570
TOTALHOUR/FIX RASKI PARAR TOTOX REXOD LOTAV KITAL
0 35 13 15 5 10 5 831 42 12 12 1 12 6 852 17 8 6 2 5 4 423 26 12 4 0 5 2 494 16 10 10 1 1 1 395 20 7 6 0 5 3 416 27 6 4 3 11 1 527 28 8 11 0 7 5 598 12 9 4 0 7 6 389 11 6 5 0 6 2 3010 17 8 3 0 7 3 3811 17 5 4 0 6 1 3312 19 2 3 0 3 4 3113 13 3 0 1 5 0 2214 12 4 4 0 3 2 2515 18 10 6 2 7 3 4616 25 10 11 0 10 7 6317 41 15 10 3 5 5 7918 46 16 12 1 14 12 10119 40 13 17 3 16 6 9520 22 6 12 0 7 1 4821 39 16 8 5 9 2 7922 33 15 7 6 9 2 7223 34 12 12 8 6 10 82
Contingency Management
( Traffic Load exceeding Capacity for consecutive 9 hours)
Contingency Management
223
197
232
224
223 207
205
257
216
234
200203
117
147 154161 169 141
99 11297
116 104 110
0
50
100
150
200
250
300
7‐Mar 8‐Mar 9‐Mar 10‐Mar 11‐Mar 12‐Mar
Traffic Distribution L301 & N57107 ‐ 12 Mar 2019
L301 EB L301 WB N571 EB N571 WB
RASKI Flight Level Occupancy 17th March 2019
Level / Time 260 280 290 300 310 320 330 340 350 360 370 380 390 400 4100 1 2 3 3 3 3 1 11 1 1 3 3 3 4 4 4 2 3 1 12 1 1 1 2 2 4 2 4 2 3 23 1 1 1 2 1 2 2 3 1 3 14 1 2 1 3 3 2 1 1 35 1 3 3 3 2 1 1 2 16 2 3 2 2 2 3 2 17 3 1 3 4 3 2 1 2 1 38 1 1 3 3 1 3 1 1 19 3 3 1 1 2 1 110 2 3 1 1 1 1 2 111 2 3 1 3 2 2 1 312 1 1 1 2 1 213 2 114 1 3 1 1 2 115 3 2 1 1 1 116 1 2 2 2 3 4 2 1 2 1 117 1 1 3 3 4 3 4 1 7 3 3
18 1 2 2 3 4 4 5 3 5 2 4
19 1 3 4 3 1 5 2 3 2 220 1 2 1 3 3 3 2 1 121 1 2 4 3 3 2 1 3
22 7 1 4 2 2 3 1 223 2 1 1 2 2 2 5 4 3 2 2
Total 1 19 1 3 5 43 29 62 54 60 43 36 45 24 22
Contingency Management
0
100
200
300
400
500
600
700
21‐Feb 27‐Feb 28‐Feb 1‐Mar 3‐Mar 4‐Mar 8‐Apr 3‐May
261
458
675 677622
580
394
311
Contingency Traffic Management - RASKI
0
50
100
150
200
250
88
206 194 188
94
156
62
215
NO
OF
MO
VEM
ENT
ATS ROUTES/ WAY POINTS
23 Jun 19
Traffic Distribution – Mumbai FIR
S.No. DepartureHourly Distribution
Grand Total0 1 2 3 4 5 6 7 8 9 10111213141516171819202122 23
1 OMDB 8 1 5 1 6 5 3 3 2 3 1 3 2 1 3 5 8 6 5 3 3 12 89
2 VABB 4 7 2 1 5 3 2 4 5 1 3 3 2 1 4 2 3 7 3 5 6 6 2 81
3 VIDP 3 3 2 4 1 5 4 6 5 2 3 3 2 1 1 6 7 4 62
4 OTHH 9 1 1 2 2 2 7 2 1 1 2 7 12 4 2 2 6 63
5 VTBS 2 2 2 2 4 4 3 1 1 1 1 3 5 1 5 8 9 4 1 1 60
6 OMAA 1 2 3 3 1 1 4 1 1 4 7 5 4 5 1 6 49
7 WSSS 1 1 1 1 1 1 1 1 1 3 2 8 6 6 3 2 1 40
8 OOMS 7 1 4 1 1 1 2 4 1 2 9 33
9 VOCI 2 1 2 1 3 1 1 1 2 1 1 2 1 1 3 4 27
10 VHHH 2 1 1 1 1 2 1 1 1 2 2 2 2 3 2 1 25
Traffic Distribution – Mumbai FIR (Oceanic Airspace)
Mumbai’s Challenge
Convergence of Traffic
Fleet Mix
Fleet equipage
Flight Plan –
Not available/ Aircraft not
on FPL track
Aircraft switching routes
in Oceanic airspace
Military identificationMumbai has Oceanic (Remote) and Continental (Surveillance) Airspace
1. Advisory NOTAM to avoid Pakistan Airspace2. Traffic Orientation Scheme3. Negotiation with Military for opening additional routes 4. Opening of Domestic Routes for International overflying5. H24 operation of N5636. Regular Stakeholder communication / clarification7. Flow control measures at Departure aerodromes8. Traffic flow streamlining by downstream ACC9. Reroute plan for aircraft in flight10.Additional manpower11.Daily analysis of Traffic flow in coordination with ATFM team
Actions Taken
1. Safety of Aircraft is more important than schedule2. Even in contingency, aircraft to follow AIP / ATM instructions3. R/T Discipline4. Cooperation from all stakeholders for the initial 72 hrs on 1 to 3 above5. Suggestions should be based on possible implementation in prevalent
scenario adhering to ICAO safety standards6. Coordinated flow control measures across FIRs7. Collaborative new airspace restrictions like FLAs8. Mutual Support / Trust on capabilities of neighbouring ANSPs who are
managing the overloaded traffic density exceeding the capacity
ANSP expectation
Define Stakeholder actions for the first 48 / 72 hrs Agree minimum navigation requirements and priority rulesFlow control at all departure aerodromeRegulating traffic downstream for convergence upstream Identify Capacity of each major traffic flow routes particularly those
across ICAO Regions (Annex 11 Attachment C)A forum for states at the interface of ICAO regions (AAMA-SCM/
RDGE)
Future considerations
DOC 9689 on separation minima: Para 6.12 “ The longitudinal collision risk is also dependent on the typical along-track navigational performance, which determines the likelihood that longitudinal separation will be lost. Therefore, it is important to constrain the along-track performance of the aircraft population……. The accuracy of position measurement can be controlledby selecting an RNP value.
[Navigation specification (PBN) may be agreed between Regions for implementation by states at the regional interface.]
Capacity Enhancement - Separation Minima