Ground System implication for ASAS implementation Prepared by Patrick Souchu STNA/3E patrick.souchu@aviation-civile.gouv.fr

Agenda ADS-B Package 1 Sequencing and merging application Ground Surveillance Application Airborne Surveillance Application ATSAW : PO-ASAS level 1 application ASAS : PO-ASAS level 2 application Sequencing and merging application Global architecture Arrival and departure manager FDPS HMI Data-link CPDLC ADS-B network Training tools Recording Preliminary conclusion 29/04/03 ASAS-TN

ADS-B package 1 GSA Non radar area surveillance Ground ADS-B station Should not be very expensive compared to a radar Installation cost can be the most significant (e.g. access road) Controller HMI Not really different from radar surveillance Airport surface surveillance Complement an existing SMGCS Enable SMGCS on medium or small airport Complement radar surveillance Integration with Mode S radar stations Additional ADS-B infrastructure 29/04/03 ASAS-TN

ADS-B package 1 ASA ATSAW ASA A priori no impact on ground ATM system If no difference in operational procedure ASA In trail procedures Oceanic environment Passing and Crossing application Difficult to assess real impact on ATM system and responsibility sharing between pilot and controller Sequencing and merging Co-Space demonstration Potential benefit for extended terminal area Operational concept to be further defined preliminary impact assessment on ground system 29/04/03 ASAS-TN

Sequencing and merging application Arrival and departure manager Takes into account aircraft capability Provides the controller with a proposed sequence and prepares instruction for sequencing Time or distance separation Impact on trajectory prediction FDPS Aircraft capability indicated in flight plan ? Trajectory prediction 29/04/03 ASAS-TN

Sequencing and merging application Controller HMI Display of aircraft capabilities ADS-B out for target aircraft ASAS capability for trailer aircraft Display of linked aircraft Designation of target and trailer aircraft Allocation of a separation Integrated with arrival departure manager specific function Monitoring of separation Appropriate new warning tools Between MTCD and STCA Recovery function Termination of the ASAS separation 29/04/03 ASAS-TN

Sequencing and merging application Need for data-link Enhanced CPDLC is probably the best solution to give sequencing and merging clearance Unambiguous identification of aircraft Easy integration of data into airborne systems Ensure consistency between air and ground views Need for new messages to be defined by ICAO Enhance ATN CPDLC communication stack Upgrade of communication systems (eg Air server) Additional CPDLC functions in controller HMI 29/04/03 ASAS-TN

Sequencing and merging application ADS-B network Reception of ADS-B data on ground is needed Confidence in ADS-B current capabilities of each aircraft Improvement of radar surveillance with ADS-B may be necessary Specific ADS-B ground stations or Enhancement of Mode S radar capabilities Omni directional 1090 MHz reception capabilities Enhance radar tracking with ADS-B Integrity monitoring with radar data Combination of ADS-B and radar for enhanced tracking ARTAS Radar networks impact 29/04/03 ASAS-TN

Sequencing and merging application Other tools Training simulator All previous capabilities must be available in controller training tools Pseudo pilot new tool to manage sequencing Simulation of new trajectories Monitoring of ADS-B ground stations Recording ADS-B data Sequencing and merging specific events 29/04/03 ASAS-TN

Conclusion A very preliminary analysis new concept and new procedures always impact the ATM system Too early for any Cost assessment Safety implications Is a unique data-link sufficient ? Development level of ATS system supporting ASAS Transition to be considered Need for TIS-B Transition accommodation feasibility with TIS-B ? ASAS capabilities to be integrated in ATS system development plan Implementation timescale is difficult to assess 29/04/03 ASAS-TN

Conclusion From ASAS spacing to ASAS separation Spacing is supposed not to change task responsibility sharing and separation minima ASAS separation will impact both Controller tasks to be defined Strategic air traffic management Monitoring Airborne separation minima to be defined Fixed or dynamic Coordinated with ground ATM ? Recovery procedures and tools Spacing is a huge step, separation will be even bigger 29/04/03 ASAS-TN