How Our Noise Contours Have Varied

Over the last 20 years improvements have led to large reductions in our noise contour. Investigate these here.

How Our Noise Contours Have Varied

Over the last 20 years, the aviation industry has seen massive improvements in aircraft design and operational procedures. ​​

The following map shows how our noise contours (57dB Leq day standard) have varied over the last 20 years. Over that same period, the number of aircraft movements have also changed as follows:

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