{"id":2588,"date":"2021-02-12T16:20:12","date_gmt":"2021-02-12T16:20:12","guid":{"rendered":"http:\/\/www.aircrafttrafficsurvey.com\/?p=2588"},"modified":"2025-03-24T08:34:12","modified_gmt":"2025-03-24T08:34:12","slug":"noise-points-of-reference-in-decibels-dbas","status":"publish","type":"post","link":"http:\/\/www.aircrafttrafficsurvey.com\/?p=2588","title":{"rendered":"Noise – points of reference in decibels (dBAs)"},"content":{"rendered":"\n
dBAs<\/strong><\/td>Description<\/strong><\/td><\/tr>
10<\/td>Normal breathing<\/td><\/tr>
40<\/td>Quiet residential area or a semi-rural location<\/td><\/tr>
42<\/td>* Airplane Transitions above 20,000 feet.<\/strong><\/td><\/tr>
45-60<\/td>* Airplane Arrivals between 7,000 and 14,000 feet.<\/strong><\/td><\/tr>
60<\/td>Normal conversation<\/td><\/tr>
60-70<\/td>* Airplane Arrivals below 7,000 feet.<\/strong><\/td><\/tr>
70<\/td>Road & Street traffic<\/td><\/tr>
85<\/td>Heavy traffic<\/td><\/tr>
90<\/td>Heavy lorries<\/td><\/tr>
110<\/td>Car horn<\/td><\/tr>
140<\/td>* Airplane taking off<\/strong><\/td><\/tr><\/tbody><\/table>
* Typically the sound from an Aircraft is audible for a period of 40-50 seconds.<\/figcaption><\/figure>\n\n\n\n

Note:<\/strong>
A difference of 10 decibels is a doubling of loudness.
A difference of 3 decibels is a doubling of sound Intensity.
Baseline – World Health Organisation of 45 dB.<\/p>\n","protected":false},"excerpt":{"rendered":"

dBAs Description 10 Normal breathing 40 Quiet residential area or a semi-rural location 42 * Airplane Transitions above 20,000 feet. 45-60 * Airplane Arrivals between 7,000 and 14,000 feet. 60 Normal conversation 60-70 * Airplane Arrivals below 7,000 feet. 70 Road & Street traffic 85 Heavy traffic 90 Heavy lorries 110 Car horn 140 * … <\/p>\n

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