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Appendix B <br /> ANSI Procedure for Calculating Percent Awakening <br /> Project Name: BAC Review <br /> Job Number: 2010-122 <br /> Noise Source: Trucks <br /> Site: 1 One-Third Octave Band Center Frequency(Hz) <br /> 125 160 200 250 315 400 500 630 800 1K 1.25K 1.6K 2K 2.5K 3.15K 4K <br /> Noise Source Information: <br /> Freeway Traffic -22 -23 -22 -19 -17 -15 -13 -11 -8 -7 -8 -9 -11 -14 -16 -19 <br /> 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 <br /> Exterior SEL,dB 57 56 57 61 62 64 66 68 71 72 71 70 68 65 63 60 <br /> 489779 407380 537032 ##W ##1W# au#### ##### #### #### ###C #####It##### ##### W7### "#t## #### <br /> Wndow-1!8'1/4'1/8 STC28 TL of Window 21 23 23 26 21 19 24 27 30 33 36 40 44 46 39 34 <br /> Interior SEL,dB 36 33 34 35 41 45 42 41 41 39 35 30 24 19 24 26 <br /> 3890 2042 2692 2818 11749 31623 16218 #### #### 7413 3236 1047 263 85 251 407 <br /> Date Time SEL 75 <br /> Mean Exterior SEL: 79 <br /> Mean Interior SEL': 54 'Assumes a typical exterior-to-interior noise level reduction(Ni of 25 <br /> Number of Nighttime Events: 182 d0 provided by STC 28 windows and modem construction practices. <br /> Percent Awakened: 97% <br /> 80 - <br /> ■Fxiedor SEL'. <br /> 70 ■Interior SEL '— <br /> 60 — <br /> 50 <br /> 40 <br /> 30 <br /> 20 <br /> 10 <br /> 0 <br /> 125 160 200 250 315 400 500 630 800 lK 1.25K 1.6K 2K 2.5K 3.15K 4K <br /> Source:ANSI/ASA S12.9-2008/Part 6-Qunalbes and Procedures lot o' <br /> Description and Measurement of Environmental Sound-Part 6:Wands for j.c. brelllian & associates <br /> Estimation of Awakenings Associated Mth Outdoor Nose Events Heerd In /U\ corrruhanrt in acoustics <br /> Homes <br />