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AFP Operations in the South China Sea Area

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ATFM/SG/4− IP/06
01-05/12/2014
International Civil Aviation Organization
The Fourth Meeting of ICAO Asia/Pacific Air Traffic Flow Management
Steering Group (ATFM/SG/4)
Bangkok, Thailand, 1 – 5 December 2014
Agenda Item 5: Development of Regional ATFM Framework
THE IDEAS OF AFP OPERATIONS IN SOUTH CHINA SEA AREA
(Presented by CHINA)
SUMMARY
This paper presents a brief on the ideas of Airspace Flow Program in South China Sea
Area. With the traffic congestion appears to spread from the terminal area to the cruising
stage, ATFM development in Asia-Pacific Region is appealed to pay attention to the
airspace flow management.
1.
INTRODUCTION
1.1
In recent years, with the rapid growth of flight flow in the Asia-Pacific Region, flight
congestion appears to spread from the terminal area to the cruising stage and it is more obviously to
the South China Sea Area. The trend of the traffic flow from Southeast Asia to Northeast Asia as one
of the three busiest air traffic flows in Asia-Pacific Region shows an explosive growth on the major
route of the South China Sea Area, like the route A202、A1、L642、M771 etc. Especially, the route
A1 shows a high growth rate of 26% every year in the past 5 years.
1.2
In the development stage of ATFM in the Asia-Pacific Region, we should try to avoid
the problem that after solving the terminal flight congestion, we have to face the new flight congestion
at cruising stage, this is just like what had already happened to the North America and other countries
or regions. We can draw lessons from the historical experience of relevant countries to plan the
ATFM in the Asia-Pacific Region with a higher and more long-term perspective. We should carry out
the work both from the terminal airspace and the area control airspace to complete the concept of
distributed and multi-nodal ATFM network in the Asia-Pacific Region.
1.3
The ATFM Operational Trial in the Asia-Pacific Region has made many
achievements in a friendly and close environment, and continue efforts to promote the development
of airspace flow management. China Sanya as a participant of the group, is committed to working
with other members to improve and develop the airspace flow management. We are trying to
construct the Airspace Flow Program(AFP) in the South China Sea Area to make the air traffic flow
from southeast Asia to northeast Asia more smoothly, and to improve the concept of distributed
multi-nodal ATFM network.
ATFM/SG/4−IP/06
01-05/12/2014
2.
DISCUSSION
Overview
2.1
When the related routes in the South China Sea Area (A202, A1, L642, M771 etc.)
are limited or will be limited, AFP will be started to maximize the use of airspace capacity and to
improve the level of security, reduce flight delays.
2.2
For airlines, AFP can reduce the airspace holding and frequent speed adjustment,
shorten the range, and improve operation efficiency.
Objectives
2.3
It can promote the realization of the following goals by the research and
implementation of AFP in South China Sea Area.
i. Response to the bad weather that lead to a decrease of airspace capacity in the
South China Sea Area.
ii. Use AFP to reduce or gradually replace other unreasonable measures such as the
delivery of MIT.
iii. Increase the situational awareness of demand-capacity balancing of airspace
users.
iv. Strengthen the collaborative decision-making between the ATFM units and the
airspace users.
v. Promote the collaborative reroute from the congestion routes to smooth routes,
increase the whole airspace capacity utilization.
vi. Complete and perfect the system and concept of ATFM in the Asia-Pacific
Region.
Mechanisms
2.4
The first step, when the air traffic flows have exceeded or are expected to exceed the
capacity, the ATFM units will calculate the Evaluated Delay Distribution (EDD, usually shown as
CTOT) and deliver the information to the relevant airspace users.
2.5
The second step, the relevant airspace users shall response to the Evaluated Delay
Distribution (EDD), this process can be called Delay Distribution Response (DDR). The options for
DDR phase include:
i. Accept the EDR
ii. Choose other routes o avoid the limited airspace
iii. Merge or cancel the flight plans to reduce the air traffic flows
And then, airspace users should feedback their results of DDR information to the
ATFM units.
ATFM/SG/4−IP/06
01-05/12/2014
First Step
2.6
The third step, ATFM units reevaluate the matching between the airspace capacity
and air traffic flows again after received the DDR. If the demand still exceed the capacity, ATFM
units will calculate the Decision Delay Distribution (DDD) delivering to the relevant airspace users. If
the demand and capacity are in balance, the relevant airspace users should execute the DDR which
has been issued by the second step.
Air traffic flows have exceeded
or are expected to exceed the capacity
ATFM units will calculate the Evaluated Delay Distribution
(EDD, usually shown as CTOT )
EDD
Deliver tOe informMtion to tOe relevMnt
MirspMce users
The options include
Second Step
Relevant airspace users shall response to the EDD
(Evaluated Delay Distribution)
Accept the EDD
Choose other routes to avoid the limited airspace
Merge or cancel the flight plans to reduce the air
traffic flows
Delay Distribution Response(DDR)
TOird Step
FeedbMck tOeir results of DDR
informMtion to tOe ATFM units
ATFM units reevaluate the matching between the airspace
capacity and air traffic flows again
Demand still exceed the
capacity
Demand and capacity are
in balance
ATFM units will calculate
the Decision Delay
Distribution(DDD)
Execute the DDR which
has been issued by the
second step
3
ATFM/SG/4−IP/06
01-05/12/2014
Planning
2.7
AFP will face a similar situation as GDP confronts in the operation process that how
to perform as the CTOT required for a large amount of international flight. In the operation of present
ATFM, the ANSPs barely do the delay action to for the international flights. Since all of the flights
overflying Sanya FIR are 100% international flights, AFP in South China Sea Area need to be more
supportive and carry out in a consistent and harmonized manner.
2.8
All the participants of the Asia-Pacific Region are appealed to continuously
accumulate operating experiences, improve the ability of the prediction and evaluation of the air
traffic flow, and gradually improve the ability of information and data communication between the
ATFM nodes, to detail the research of AFP operation mechanism, to establish a set of robust
operation rules, and to develop the corresponding decision aids system.
3.
3.1
ACTION BY THE MEETING
The meeting is invited to:
a)
note the information contained in this paper;
b)
recognize the importance of the construction of AFP in South China Sea Area;
c)
discuss any relevant matters as appropriate.
…………………………
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