the fifth ats coordination meeting of bay of bengal, arabian sea … wp03... · 2015. 8. 29. ·...

BOBASIO/5−WP03

31st August-2nd September 2015

The Fifth ATS Coordination meeting of Bay of Bengal, Arabian Sea

and Indian Ocean Region (BOBASIO/5) New Delhi, India, 31st August -2nd September, 2015.

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Agenda Item 4-Strategic ATM Plans of participating States

COLLABORATIVE AIRSPACE DESIGN AND MANAGEMENT

(Presented by Airports Authority of India)

SUMMARY

This working paper presents the details of enhancement of airspace capacity through

Collaborative airspace design and management.

This paper relates to:

Relevant Strategic Objectives:

A: Safety – Enhance global civil aviation safety

B: Air Navigation Capacity and Efficiency – Increase the capacity and improve the

efficiency of the global aviation system

C: Environmental Protection and Sustainable Development of Air Transport – Foster

harmonized and economically viable development of international civil aviation that does

not unduly harm the environment

Global Plan Initiatives:

GPI-5 RNAV and RNP (Performance-based navigation)

GPI-7 Dynamic and flexible ATS route management

GPI-8 Collaborative airspace design and management

GPI-17 Data link applications

1. INTRODUCTION

1.1 Asia and Pacific region has been recognized internationally for registering the fastest growth rates

in aviation. To address and meet the demands of the exponential growth in aviation in the region India has

taken notable initiatives for enhancing airspace capacity and route optimization within its airspace by

providing efficient and environmentally sustainable air space management solutions.

2. DISCUSSION

2.1 The introduction of EMARSSH routes, RVSM, flow management through BOB-CAT and

furthermore due to the introduction of many new RNP10 ATS routes contributed significantly to the

enhancement of airspace capacity and efficiency in BOBASIO Region.

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31st August- 2nd September 2015

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2.2 The Bay of Bengal ATS Coordination Group, formed the Bay Of Bengal Reduced Horizontal

Separation Task Force in 2009 for implementing Reduced Horizontal Separation in the Bay of Bengal

Arabian Sea Indian Ocean. In 2011, India established an Enroute Monitoring Agency to meet the ICAO

requirements for implementing 50NM longitudinal separation.

2.3 Airports Authority of India has implemented following measures for capacity enhancement and

route optimization:

a) In 2011 Reduced Longitudinal Separation of 50 NM was introduced on 18 RNP 10 routes for suitably

equipped aircraft.

b) In 2011 India introduced RNAV-5 city pair routes in high density route segments within the

continental airspace. As on date 16 RNAV 5 ATS routes have been established.

c) In 2012 40NM Radar based longitudinal spacing above FL290 between Aircraft was implemented

on routes between Delhi/Chennai and Delhi/Varanasi.

d) In 2013 User Preferred Route (UPR) Geographic Zone in Chennai and Mumbai FIR was established

under the aegis and directions of INSPIRE initiatives.

e) In 2014, Reduced Longitudinal Separation of 30 NM was introduced on 4 ATS ROUTES N571,

P574, M300 and P570 between suitably equipped (RNP4) aircraft.

f) Since November 2014 Six Conditional Routes have been established under Flexible Use of Airspace.

g) RNAV 2 city pair between Mumbai and Kolkata is being introduced from 17/Sep/2015.

2.4 Proposals for removal of FLAS in the BOBASIO Region was made in many ATM forums and it

was observed that FLAS act as a safety net for crossing routes, especially in the oceanic airspace where

communication is not reliable. The FLAS though restricts usage of certain levels on certain routes does not

prohibit the usage if traffic permits. Accordingly, traffic permitting Indian ATCC are allotting optimum

levels as far as practicable. Air Traffic Controllers are being sensitized to use FLAS only as last resort.

2.5 India and Muscat are in agreement for implementing 50NM longitudinal separation on 6 RNP10

routes in the near term.

2.6 Discussions in the AHACG/3 and BIMT/2 meeting has resulted in Iran, Pakistan, India, Myanmar

and Thailand agreeing for application of 50NM longitudinal separation minima between RNP 10 approved

aircraft from a common date.

2.7 In line with the ICAO recommendation for States to work cooperatively either through bilateral or

multilateral agreements to ensure regional and sub-regional harmonization of en-route PBN

implementation, it is proposed to establish new ATS routes in Kolkata-Dhaka FIR, Northern Bay of Bengal

and over Arabian Sea for capacity enhancement and route optimization. Maps of the proposed ATS routes

are annexed to this working paper.

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ACTION BY THE MEETING

3.1 The meeting is invited to:

a) Delibrate the Route proposals for capacity enhancement contained in this paper;

b) Discuss implementation issues including amendments to LoA: and

c) Prepare a Road map for implementation.

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A) In Kolkata-Dhaka FIR

The proposal is to establish new ATS routes as follows-

1) Uni-directional (WB) ATS Route - Guwahati- TEGAK-Kolkata

2) Uni-directional (EB) ATS Route - Kolkata-Barisal-Comilla-Lengpui.

3) Uni-directional (EB) ATS Route - Guwahati-Sylhet-Agartala

4) Bi-directional ATS Route - Bagdogra - Saidpur

5) Jamshedpur-Durgapur-Rajsahi (Bidirectional)

6) Uni-directional (EB) ATS Route - Dhaka- Agartala

7) A conditional route (bi-directional) between Saidpur and Dhaka overlaying domestic Route

W3 / W6 for aircraft overflying Dhaka.

8) Bi-directional ATS Route - Katihar – Saidpur – Guwahati

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B) In Mumbai-Sanaa-Mogadishu-Seychelles FIR

The proposal is to-

1) Restrict G450 upper limit to FL280 to accommodate non-RNP10/ non-RVSM aircraft

2) Create a new RNP10 ATS Route overlaying G450 between ORLID and Mumbai

with vertical limit as FL290/FL460.

3) Create a new RNP10 ATS route parallel and 50NM north of G450 between NABIL

and WP 183418N 0701230E joining P751 to Mumbai.

4) Create a new ATS route parallel and 50NM south of G450 between VUTOS and

NINOB joining B459 to Mumbai.

5) Restrict G424 upper limit to FL280 to accommodate non-RNP10/ non-RVSM aircraft

or Withdraw G424.

6) Mogadishu may coordinate with SANAA for extension of route between NABIL and

EKBAS for connectivity of aircraft on UT382.

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C) BIMT Route Design over Bay of Bengal

1) It is proposed to introduce the routes with RNP10 specifications requiring mandatory carriage of ADS-

C/CPDLC to enable the application of 50NM longitudinal separation and review after one year to

introduce 30NM longitudinal separation with RNP4 specification.

2) A second review is proposed after 5 years to consider changing the nav specs to RNP2 or RNAV2.

3) India is entrusted to draft contingency procedures supporting L301 and L507 parallels during cyclone to

be reviewed by BIMT States at the BIMT/3 meeting.

………………………….

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