Directiongénéralede l’Aviationcivile

centred’Études dela navigationaérienne

First ASAS thematic network workshop

The user’s expectations and concerns

A Printemps

First ASAS Thematic Network

centred’Études dela navigationaérienne

Page 228/04/2003

ATM service provider view

•Operational benefit•Transition issue•System implementation issue•Acceptability and Training

•For each item :• benefits of ASAS and in particular package 1

•what still needs to be studied

First ASAS Thematic Network

centred’Études dela navigationaérienne

Page 328/04/2003

Operational benefit

-ATSA : Should increase safety : airport / departure management Parallel runway management

-Spacing application : Improves controller efficiency (EEC simulations of arrival

sectors of Paris en route center), Improves flight efficiency, as shown by these simulations Should improve the capacity of arrival sectors where

ground automation is quite difficult to implement(MTCD does not work, workload to organise the traffic flow is quite high)

First ASAS Thematic Network

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Operational benefit of Spacing application

ATN

DIJ

MEL

OKRIX

SUSIN

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EACAC111201A15-60

ATN

DIJ

MEL

OKRIX

SUSIN

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EACAC101201B15-60

Spatial mapping of instructions (Heading, direct

and speed only)Very High

With

Very HighWithout

Many other indicators has shown benefits when all aircrafts are equipped.

First ASAS Thematic Network

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Page 528/04/2003

Operational benefit : to be studied

Arrival manager integration Operational concept refinement HMI integration

Arrival sector > approach sector transition Interest and feasibility in approach sectors

Demonstrate operational benefits and procedure on main European airports For France : CDG airport

Spacing concept safety needs to be consolidated Standardisation

First ASAS Thematic Network

centred’Études dela navigationaérienne

Page 628/04/2003

Transition (1)

A new concept is implementable only if a cost effective transition path can be achieved

To mandate ASAS package one is unlikely for the short/medium term :

progressive implementation must be possible

« ADS/B out » could be easy and cheap to implement if MODE S 1090 technology is used ( part of enhance MODE S surveillance package, no new equipment required)

If a significant number of aircraft is « ADS/B out » equipped, then operational benefit could be available from each aircraft equipped with package one.

First ASAS Thematic Network

centred’Études dela navigationaérienne

Page 728/04/2003

Transition (2)

Spacing application does not require electronic stripping

Spacing application does not require MTCD and other complex tools implementation

Spacing application does not require CPDLC implementation

Spacing application does not require a fundamental change in responsibilities

Spacing application is compatible with existing ATM system

First ASAS Thematic Network

centred’Études dela navigationaérienne

Page 828/04/2003

Transition : to be studied

Operational benefit with a limited number of aircraft equipped with package one

Spacing application : benefit for the controller of a limited number of aircraft equipped with package one

Possibility to implement package one without having to implement complex avionics

Acceptability for pilots of spacing application in flight descent phase or approach phase (workload issue)

First ASAS Thematic Network

centred’Études dela navigationaérienne

Page 928/04/2003

Technical ATC system upgrade

Ground ATC systems are now complex systemsImplementing a new function may be quite long and costly

if RDPS or FDPS has to be modified.

Package one application does not require complex system modification, at least in the first years

STCA compatibility or extension HMI modification (and minimum FDPS modification to

identify aircraft equipped)

Package one cost / benefit is good for the ground part : in the first years little benefit… but little cost

First ASAS Thematic Network

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Page 1028/04/2003

System implementation : to be studied

Airworthiness issue may be critical for package one introduction

Airborne complexity of package one New autopilot mode should not be a prerequisite to

Package One introduction.

Integration of ACAS CDTI / ATSA displays, need of new HMI…

First ASAS Thematic Network

centred’Études dela navigationaérienne

Page 1128/04/2003

Controller acceptability and training

Controller acceptability is a quite important issueTraining time is quite critical

Package one spacing application has been well received in the first simulations

Better anticipation, handover to approach are much easier

Responsibility issue has to be clearly explained

Training time (one week) and methodology still need to be improved

First ASAS Thematic Network

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Page 1228/04/2003

Conclusion

Main feasibility criteria for implementing are being met for package one :

operational benefit transition is possible (if 1090 ADS /B) ground system complexity and cost are moderate controller acceptability

However some work is still necessary on the airborne part : pilot acceptability without airborne automation on the operational benefit with a limited number of aircrafts equipped on the standardisation process

First ASAS Thematic Network

centred’Études dela navigationaérienne

Page 1328/04/2003

A Eurocontrol programme one Package One implementation is now needed

Since RVSM, Package One is the most promising advance in ATM