Direction générale de l’Aviation civile centre d’Études de la navigation aérienne First ASAS thematic network workshop The user’s expectations and concerns A Printemps

centre d’Études de la navigation aérienne Page 2 28/04/2003 First ASAS Thematic Network 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

centre d’Études de la navigation aérienne Page 3 28/04/2003 First ASAS Thematic Network 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)

centre d’Études de la navigation aérienne Page 4 28/04/2003 First ASAS Thematic Network Operational benefit of Spacing application Spatial mapping of instructions (Heading, direct and speed only) Very High With Very High Without Many other indicators has shown benefits when all aircrafts are equipped.

centre d’Études de la navigation aérienne Page 5 28/04/2003 First ASAS Thematic Network 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

centre d’Études de la navigation aérienne Page 6 28/04/2003 First ASAS Thematic Network 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.

centre d’Études de la navigation aérienne Page 7 28/04/2003 First ASAS Thematic Network 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

centre d’Études de la navigation aérienne Page 8 28/04/2003 First ASAS Thematic Network 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)

centre d’Études de la navigation aérienne Page 9 28/04/2003 First ASAS Thematic Network Technical ATC system upgrade Ground ATC systems are now complex systems Implementing 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

centre d’Études de la navigation aérienne Page 10 28/04/2003 First ASAS Thematic Network 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…

centre d’Études de la navigation aérienne Page 11 28/04/2003 First ASAS Thematic Network Controller acceptability and training Controller acceptability is a quite important issue Training 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

centre d’Études de la navigation aérienne Page 12 28/04/2003 First ASAS Thematic Network 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

centre d’Études de la navigation aérienne Page 13 28/04/2003 First ASAS Thematic Network A Eurocontrol programme one Package One implementation is now needed Since RVSM, Package One is the most promising advance in ATM