img-730171023-0001-2 · MCU12/0012

Noosa Quad Bike Tours
Environmental Noise Level Assessment of Quad Bike Rider Competency Assessment Circuit,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

298 Tablelands Road, Cooran Page 7 of 21
Sound
Freq Sound A- Level, Tonal | Sound Log?
(Hz) Level, dB | Wght.}| dB(A) Log? Diff. | Adj. | Level Adj.
20 46.1 | -50.5 44 -0.44 | 0.36307805
25 52.1 | -44.7 7.4 0.74 | 5.49540874 | -0.5 0 7.4 0.74 | 5.495409
31.5 59.5 | -39.4 20.1 2.01 102.329299 | _7.8 0 20.1 2.01 | 102.3293
40 51.8 | -34.6 17.2 1.72 52.480746 -4.2 0 17.2 1.72 | 52.48075
50 52.9 | -30.2 22.7 2.27 186.208714 | -0.7 0 22.7 2.27 _| 186.2087
63 55.9 | -26.2 29.7 2.97 | 933.254301 3.3 3.6 33.3 3.33_| 2137.962
80 52.7 | -22.5 30.2 3.02 1047.12855 | -2.2 0 30.2 3.02 | 1047.129
100 54.3 | -19.1 35.2 3.52 | 3311.31121 | -0.2 0 35.2 3.52 | 3311.311
125 56.6 | -16.1 40.5 4.05 11220.1845 | 4.4 3.8 44.3 4.43 | 26915.35
160 50.5 | -13.4 37.1 3.71 5128.61384 | -3.7 oO 37.1 3.71_| 5128.614
200 51.9 | -10.9 AI 41 12589.2541 -3.1 0 41 4.1__| 12589.25
250 59.7 | -8.6 51.1 5.11 128824.955 3.2 3.5 54.6 5.46 | 288403.2
315 61.5 | -6.6 54.9 5.49 | 309029.543 1.6 oO 54.9 5.49 | 309029.5
400 60.3 | -4.8 55.5 5.55 | 354813.389 1.0 0 55.5 5.55 | 354813.4
500 57.3 | -3.2 54.1 5.41 257039.578 | -1.3 0 54.1 §.41_| 257039.6
630 57.1 1.9 55.2 5.52 331131.121 1.8 oO 55.2 5.52 | 331131.1
800 53.6 | -0.8 52.8 5.28 190546.072 | -0.9 0 52.8 5.28 | 190546.1
1000 52.1 0 52.1 5.21 162181.01 1.3 0 52.1 5.21 162181
1250 48.2 0.6 48.8 4.88 75857.7575 | -3.6 0 48.8 4.88 | 75857.76
1600 51.6 1 52.6 5.26 181970.086 | 3.2 5.6 58.2 5.82_| 660693.4
2000 48.9 1.2 50.1 5.01 102329.299 | _ -1.4 0 50.1 5.01_| 102329.3
2500 49 1.3 50.3 5.03, 107151.931 21 0 50.3 5.03 | 107151.9
3150 45.2 1.2 46.4 4.64 | 43651.5832 | -0.5 0 46.4 4.64 | 43651.58
4000 42.6 1 43.6 4.36 | 22908.6765 | -0.4 0 43.6 4.36 | 22908.68
5000 4141 0.5 41.6 4.16 14454.3977 0.7 oO 41.6 4.16 | 14454.4
6300 38.3 | -0.1 38.2 3.82 | 6606.93448 | -0.1 0 38.2 3.82 | 6606.934
8000 36 | -1.1 34.9 3.49 | 3090.29543 | -0.8 0 34.9 3.49 | 3090.295
10000 35.7 2.5 33.2 3.32 2089.29613 0.0 oO 33.2 3.32_| 2089.296
12500 35.9 | -4.3 31.6 3.16 1445.43977 1.3 0 31.6 3.16 | 1445.44
16000 34.1 6.6 27.5 2.75 | 562.341325 | 16.4 0 27.5 2.75 | 562.3413
20000 oO} -9.3 9.3 -0.93 | 0.11748976
63.6740446 64.75011
Adj = 1.07606996

 

 

 

 

 

 

 

 

 

 

 

 

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Tables ismt Phis do-He, :
Calculation of Tonality £6r Experienced Quad Bike Rider in -expenenced| Yy) of 6x7

From the 1/3" octave frequency spectrum of the quad bike a tonal adjustment of +1.1 dB(A) was
calculated as per Table 3, for an inexperienced rider. There is no impulsive noise associated with the
use of the quad bike.

In July 2012 (Tuesday 9 July) a noise assessment was conducted with a noise source located at the
competency assessment circuit to simulate twelve quad bike riders on the circuit, and at the closest
residences. The results of the noise these measurements are detailed in Table 4.

 

David Moore & Associates Pty Ltd Our reference: R12054/D2670/Rev.1/23.07.2012