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低層中層高層那個噪音較大

假設住宅在高速公路旁相隔約50米, 附近沒有其他高樓大廈,低層 (5樓) 中層 (25樓) 高層 (45樓) 那個會比較噪音大?

發表於 Posted on: 2016-09-26 22:30

akulabi
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Referencing the "Study of Traffic Noise Levels at Various Heights of a 39-Story Building" available through US Forest Service Research Publications, using the 37th floor of a particular building as the baseline, the noise level is below 65 dB over 99% of the time in a 3 hour sampling. That is like having a normal conversation with someone. On the 3rd floor, 50% of the time, it is 65 to 85 dB. That is no louder than inside a car in traffic. For the other 50% of the time, the 3rd, 14th, 26th and 37th floors are similar. For the 14th floor and up, they are about the same 70% of the time.

Your 45th floor is about 150 meters up. If you can hear something such as car horn that is about few minutes walk away, you can hear it 45 floors up.

According to US OSHA (Occupational Safety and Health Administration), sustained exposure to noise over 90 dB for 8 hours may cause permanent damage. That is about the sound level of a subway train 50 meters away, or, playing a piano loudly.

發表於 Posted on: 2016-09-27 3:57

LatentNightCrawler
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謝謝詳細回覆

發表於 Posted on: 2016-09-27 13:42

akulabi
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