Quietness Suitability Index (QSI) and Natura 2000

Figure Created 11 Jul 2016 Published 11 Jul 2016 Last modified 25 Aug 2016
The map shows the index of suitable quiet areas across Europe combined with the Natura2000 protected areas


Additional information

Suitable distance layer from noise sources built following a fuzzy approach (*), calculating the 'membership' to the quietness range (0–1) by means of a linear relationship, considering the mean value obtained as no suitable (= 0) and maximum distance obtained as suitable (= 1). The distance values between not suitable (mean value) and suitable (maximum value) will be reassigned with a new value between 0 and 1 following a linear equation. The noise map has been combined with the Natura 2000 data for Europe.

 (*) The production of threshold distance layers around noise sources has been made following a fuzzy approach rather than obtaining a buffer with sharp limits. Membership to a 0-1 range has been obtained according to a linear function.

Full methodology: Good practice guide on quiet areas.Technical report No 4/2014

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European Environment Agency (EEA)
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1050 Copenhagen K
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