CIRCULAR RECOMMENDED METHOD FOR COMPUTING NOISE CONTOURS AROUND AIRPORTS Approved by the Secretary General and published under his authority INTERNATIONAL CIVIL AVIATION ORGANIZATION MONTREAL CANADA
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Foreword The material for this circular was developed by the Committee on Aviation Environmental Protection at its first meeting held in Montreal in June 1986. It is intended to assist States in the computation of noise contours around airports. The scope of this circular is explained in Chapter 2. The issuance of this circular was approved by the Council on I I March 1987. Comments on the contents of this circular, particularly with respect to its application and usefulness, would be appreciated from all States. These comments will be taken into account in the preparation of subsequent editions. Comments concerning this document should be addressed to The Secretary General International Civil Aviation Organization 1000 Sherbrooke Street West Suite 400 Montreal, Quebec CANADA H3A 2R2