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Attachment 7 - Acoustic Report
8.1.2 Background Creep
The noise source levels and predicted levels at the receiver locations are shown as follows;
Table 13: Background Creep noise levels, 15 minute
Receivers 900 900 900 900 900 900
1. 1 Ferrells Rd (NW)
No. of events per 15min Night
Barrier (height (m))
No. of events per 15min Day
No. of events per 15min Eve
2. 92 Cooroy Mtn Rd (NE)
LAeq adj,T ext. dB(A) Night
Corrected Leq@1m dB(A)
LAeq adj,T ext. dB(A) Day
LAeq adj,T ext. dB(A) Eve
Building TL or shield dB
Source Leq@1m dB(A)
Dist atten. @-6dB/dd
Barrier screening dB
Duration per event
Topo screening dB
Correction dB(A)*
LAeq 15 min
Distance (m)
Compliance
Receiver
Day Eve Night
No
Description
Criteria 45 43 38
Car door closure 75 2 77 30 15 5 2 184 -46 19 16 11 Yes Yes Yes
1 Car passby 69 0 69 30 15 5 15 184 -46 20 17 12 Yes Yes Yes
Car start 74 2 76 30 15 5 2 184 -46 18 15 10 Yes Yes Yes
Delivery van 78 0 78 1 1 1 900 305 -50 28 28 28 Yes Yes Yes
Golf club: External background music 80 0 80 1 1 1 900 305 -50 30 30 30 Yes Yes Yes
Golf club: Internal amplified music 90 0 90 1 1 1 900 305 -10 -50 30 30 30 Yes Yes Yes
Golf Club: Terrace area (50 patrons) 81 0 81 1 1 1 900 305 -3 -50 28 28 28 Yes Yes Yes
Golf Club: Internal (100 patrons) 86 0 86 1 1 1 900 305 -10 -50 26 26 26 Yes Yes Yes
Clubhouse: External background music 80 0 80 1 1 1 900 550 -3 -55 22 22 22 Yes Yes Yes
Clubhouse: Internal amplified music 90 0 90 1 1 1 900 550 -10 -55 25 25 25 Yes Yes Yes
Clubhouse: Alfresco area (50 patrons) 81 0 81 1 1 1 900 550 -5 -55 21 21 21 Yes Yes Yes
Total 37 36 36 Yes Yes Yes
Criteria 45 43 38
Car door closure 75 2 77 30 15 5 2 327 -51 14 11 6 Yes Yes Yes
2 Car passby 69 0 69 30 15 5 15 327 -51 15 12 7 Yes Yes Yes
Car start 74 2 76 30 15 5 2 327 -51 13 10 5 Yes Yes Yes
Delivery van 78 0 78 1 1 1 900 327 -51 27 27 27 Yes Yes Yes
Golf club: External background music 80 0 80 1 1 1 900 340 -51 29 29 29 Yes Yes Yes
Golf club: Internal amplified music 90 0 90 1 1 1 900 345 -10 -51 29 29 29 Yes Yes Yes
Golf Club: Terrace area (50 patrons) 81 0 81 1 1 1 900 340 -1 -51 29 29 29 Yes Yes Yes
Golf Club: Internal (100 patrons) 86 0 86 1 1 1 900 345 -5 -51 30 30 30 Yes Yes Yes
Clubhouse: External background music 80 0 80 1 1 1 900 345 -51 29 29 29 Yes Yes Yes
Clubhouse: Internal amplified music 90 0 90 1 1 1 900 345 -10 -51 29 29 29 Yes Yes Yes
Clubhouse: Alfresco area (50 patrons) 81 0 81 1 1 1 900 345 -1 -51 29 29 29 Yes Yes Yes
Total 38 38 38 Yes Yes Yes
*Correction due to tonality and impulsiveness as per AS1055:1997.
Compliance is predicted with the Background Creep criteria without the need for any additional
acoustic recommendations.
2019253 R01A Lot 2 & 3 Myall Street, Cooroy RTN ENV.docx © Acoustic Works 2019 Page 20
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