1. Amsterdam Airport Schiphol 3 Schiphol Group Amsterdam Airport Schiphol Statusreport CAEP/7 WG1 Noise technical ACI World Environmental Standing Committee Geneva, March 14, 2005 Etienne van Zuijlen

2. Amsterdam Airport Schiphol 3 Schiphol Group 2 CAEP/7 wg1 Noise Technical Aim, constitution & rapporteur Keep noise certification Standards (ICAO Annex 16, Volume I) up to date and effective; while ensuring that the certification procedures are as simple and inexpensive as possible experts from certificating authorities (12), manufacturers (25), airlines (3), and airport operators (1), rapporteurs from USA & The Netherlands

3. Amsterdam Airport Schiphol 3 Schiphol Group 3 CAEP/7 wg1 Noise Technical tasks & meetings N1 Current technical issues N2 Future of noise certification scheme N3 Aircraft type noise certification database N4 Monitoring Noise techologiy (with WG/3) Meetings: 2004: 2 meetings (Sweden & Montreal) Feb. 2005: Joint wg1&wg3 meeting 2005: 2 meetings scheduled:  Geneva, April ‘05 & Savannah, USA, Oct ‘05)

4. Amsterdam Airport Schiphol 3 Schiphol Group 4 WG1 task identification main topic of 1st meeting 2004 US: update SAE noise certification D ocs:  Tackle in technical issues task group US: CAEP aircraft noise certification database, NoiseDB ( interpolation & dually (Ch2& Ch3) certified B747-100/200’s ) US&EU: work program for rotorcraft US: domestic supersonic research activity:  recommended practices related to supersonic noise and sonic boom CAEP8 US&FR: ICAO noise certification workshop

5. Amsterdam Airport Schiphol 3 Schiphol Group 5 WG1 structure (task groupes) 7 task areas distributed over 5 task groups 1. future noise cert. task group(FTG) 2. technical issues task group (TITG) 3. technology task group (TTG) 4. rotercraft task group (RTG) 5. supersonic transport task group (SSTG) Session/DayDay 1Day 2Day 3Day 4 MorningTITGRTGFTGSSTG AfternoonTITGTTGFTGSSTG

6. Amsterdam Airport Schiphol 3 Schiphol Group 6 CAEP/7 wg1 Noise Technical Workplan & progress in Taskgroups - FTG FTG: Future Noise Certification Scheme (follow up on work of CAEP/6 Modernisation TG)  review purpose of certification  study noise problem around airports  agree on role of current certification scheme in aircraft type design Deliverables: overall: any changes in current noise certification scheme necessary? in 2005: consensus on the correlation of certification and operational noise levels, based on conclusions of 10 studied a/p’s

7. Amsterdam Airport Schiphol 3 Schiphol Group 7 CAEP/7 wg1 Noise Technical FTG certified vs operational noise correlation Datacollection & methodology chosen:  Take-off & approach data (cf. Annex 16)  Quality of measured SEL’s (a.o. threshold)  1 dB confidence range (and 0.1dB average)  Certified levels cf. Campell-Hill/NoiseDb  Ranking of measured and certified data  Reporting cf Spearman’s Rank-Order  Compare monitored levels at different distances 3 studies (9 a/p) performed (US, FR, UK) ACI/Schiphol data requested (draft paper)

8. Amsterdam Airport Schiphol 3 Schiphol Group 8 CAEP/7 wg1 Noise Technical FTG certified vs operational noise correlation Considerations from initial ACI-study: Different certified noise levels for airframe /engine combination, with ranges upto 5dB Monitored data confidence range <1dB Linear average taken from certified levels Flight paths and monitoring points are not in “ideal” Annex 16 shematic locations Influence of distance unclear yet

9. Amsterdam Airport Schiphol 3 Schiphol Group 9 CAEP/7 wg1 Noise Technical FTG certified vs operational noise correlation Conclusions from initial ACI-study: From 3 month’s of data, only limited subset (and influence typical period?) Only 1 monitoring point/Rwy usefull High variation in certified noise levels Rank-Order applied to approach only Monitoring points at larger distance Better correlation with fly-over/sideline (!??) Selection of a/c types of interest usefull Use of mobile monitoring post & longer time period is considered, after discussion WG1

10. Amsterdam Airport Schiphol 3 Schiphol Group 10 CAEP/7 wg1 Noise Technical Workplan & progress in Taskgroups - TITG TITG: Technical Issues Task Group Positions, rules, guidance on technical noise certification issues; Deliverables:

11. Amsterdam Airport Schiphol 3 Schiphol Group 11 CAEP/7 wg1 Noise Technical Workplan & progress in Taskgroups - TTG TTG: Technology Task Group advice & information on mid- and longterm noise reduction technology study relationships between noise & emissions tarde-offs Deliverables:

12. Amsterdam Airport Schiphol 3 Schiphol Group 12 CAEP/7 wg1 Noise Technical Workplan & progress in Taskgroups - RTG RTG: Rotorcraft Task Group technical points linked to helicopter noise certification Deliverables:

13. Amsterdam Airport Schiphol 3 Schiphol Group 13 CAEP/7 wg1 Noise Technical Workplan & progress in Taskgroups - RTG STG: supersonic transport task group Monitor research into soic boom signatures and acceptabilaty Develop Noise Certification Standards & Recommended Practices Deliverables:

14. Amsterdam Airport Schiphol 3 Schiphol Group 14 Schiphol Group Creating AirportCities

15. Amsterdam Airport Schiphol 3 Schiphol Group 15 Contact details ******************************************************************************* Etienne van Zuijlen M.Sc. Schiphol Group - Amsterdam Airport Schiphol Business Unit Airlines - Capacitymanagement Manager Environmental Capacity phone: +31 20 601 3479 SHG A354 fax: +31 20 601 2134 Location 01-30 mail: zuijlen_e@schiphol.nl PO BOX 7501 web: www.schiphol.nl 1118 ZG Schiphol Airport, The Netherlands ********************************************************************************