AIRCRAFT NOISE The results of CAEP/5 by Gerard Bekebrede

Committee on Aviation Environmental Protection (CAEP) CAEP is a Committee of ICAO’s Council CAEP/5 was the fifth meeting of CAEP and was held in Montreal from 8 to 17 January 2001. (The 4th meeting was held in 1998.) During CAEP/5 the activities of CAEP in the period 1998 - 2000 were discussed Recommendations were made to ICAO’s Council

CAEP: Terms of Reference CAEP undertakes studies approved by the Council, related to control of aircraft noise and gaseous emissions. CAEP shall take into account: certification schemes: technical feasibility, economic reasonableness and environmental benefit to be achieved; developments in other associated fields, e.g. land use planning, noise abatement operating procedures, emission control through operational practices, etc.; and progress in international and national programmes of research

CAEP: Workprogramme Noise (1) assessment of the prospects for further reduction of aeroplane noise levels review of existing noise certification procedures with a view to adapting them to better representing the operational procedures used by modern aeroplanes several activities related to noise certification (update manuals, simplifying procedures/reducing costs, procedures for tilt rotor aircraft, etc.)

CAEP: Workprogramme Noise (2) assessment of noise abatement procedures to reduce aircraft noise on the ground collect information of aircraft noise monitoring around airports and update advisory documents on methodologies and applications of noise monitoring

CAEP: 1998 - 2000 Activities on noise were carried out in working groups: WG1: Noise WG2: Airports and Operations FESG: Cost-benefit analyses Steering Group meetings in 1999 and 2000 Full CAEP meeting in January 2001

CAEP/5: Results on aircraft noise Recommendations of CAEP/5 included: a new noise standard which is 10 decibels lower on a cumulative basis than the current Chapter 3 standards (for new aircraft design , effective 1 January 2006) procedures for re-certification of existing aircraft meeting the new standard more stringent noise standards for helicopters additional/technical amendments of Annex 16

CAEP/5: Results on aircraft noise (2) proposal for new take-off noise abatement procedures publication of guidance material on noise abatement procedures, land use planning and Noise and Flight Path Monitoring Agreement that noise management should be considered in the context of a balanced programme consisting of: reduction of noise at the source, land use planning and control, noise abatement procedures and operating restrictions

CAEP/5: Phase-out or operating restrictions new noise standard is intended for certification purposes only cost-benefit analyses do not support general phase-out of CH-3 aircraft in non-exempt regions several members believed that regional phase-out is not supported by cost-benefit analyses

CAEP/5: Results on aircraft noise Next presentations session 3: Working group 1 issues / -10 decibel stringence by Tom Connor Importance of balanced approach by Elizabeth Andrade Cost-benefit analyses by Upali Wickrama