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BAB IVPERHITUNGAN KEBISINGAN
4.1 Data Pengukuran KebisinganPengukuran kebisingan dilakukan di SDN 042 Kota Pekanbaru dengan mengambil sampel kebisingan dari 3 titik, yaitu : jalan Adi Sucipto (titik 1), Lapangan SDN 042 Kota Pekanbaru (titik 2), dan salah satu kelas di sekolah tersebut (titik 3). Berikut adalah hasil pengukuran kebisingan dengan metode sederhana pada masing-masing titik :
a. Titik 1 (Jalan Adi Sucipto)1. Pukul 07.30 WIB (L1)Pengukuran kebisingan L1 diambil pada jam 07.30 mewakili jam 06.00-09.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.1 berikut.Tabel 4.1. Data hasil pengukuran pukul 07.00 pada Titik 1.73,97970,987,878,672109,891,583,671,567,668,1
80,574,776,191,675,781,981,275,283,469,981,771,6
79,481,58179,381,169,874,481,3101,770,8108,371
76,390,880,775,471,877,777,376,574,990,670,383,9
71,1113,475,869,573,667,463,46572,27675,379,2
77,668,268,271,475,976,872,670,180,1125,171,785,7
81,474,371,680,679,871,271,671,372,870,169,872,7
76,894,572,472,375,17972,174,471,171,376,273,7
71,679,283,677,669,774,374,471,979,174,669,768,3
78,476,48171,177,580,163,382,669,677,6110,778,8
2. Pukul 09.20 WIB (L2)Pengukuran kebisingan L2 diambil pada jam 10.20 mewakili jam 09.20-14.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.2 berikut.Tabel 4.2. Data hasil pengukuran pukul 10.00 pada Titik 1.76,169,574,480,474,776,272,873,668,873,781,874,8
79,174,266,676,997,17070,875,674,871,174,771,8
80,769,3 65 73,982,381,275,380,372,867,179,790,2
74,887,469,674,48376,670,972,172,284,871,671,5
77,19783,478,873,971,268,77574,771,979,371,9
80,476,981,274,991,873,570,589,976,570,979,677,9
93,969,470,88168,871,875,182,875,179,67573,8
98,868,473,968,981,282,878,272,572,380,471,172,1
8174,27677,775,480,483,662,5737380,369,3
82,473,780,775,973,670,474,374,467,567,567,670,4
3. Pukul 15.30 WIB (L3)Pengukuran kebisingan L3 diambil pada jam 15.30 mewakili jam 14.00-17.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.3 berikut.Tabel 4.3. Data hasil pengukuran pukul 15.00 pada Titik 1.69,957,568,979,675,876,980,391,472,27374,480
69,974,772,965,170,177,372,965,7113,273,671,376,6
67,875,57171,689,481,487,876,679,187,88973,8
70,974,95268,588,678,769,968,76769,172,171,4
70,366,175,371,199,573,27991,268,570,780,879
76,981,179,478,3111,774,164,770,274,86973,967,9
67,676,174,268,176,869,477,765,970,179,773,464,2
66,994,282,17770,779,574,771,377,472,68174,7
61,569,681,376,283,87681,469,779,380,5109,872,9
83,982,276,189,175,279,873,769,179,572,67981
4. Pukul 20.05 WIB (L4)Pengukuran kebisingan L4 diambil pada jam 20.05 mewakili jam 17.00-22.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.4 berikut.Tabel 4.4. Data hasil pengukuran pukul 20.00 pada Titik 186,568,279,789,28074,677,670,371,764,57973,3
79,37370,779,776,165,667,173,471,57291,973
79,781,473,779,491,9679176,974,170,167,274,5
62,972,371,760,764,16880,189,872,168,470,669,8
8098,279,575,477,372,877,372,176,185,17678,3
82,368,373,671,275,87467,269,771,769,776,276,4
95,476,565,868,495,573,77479,181,882,688,380,4
79,279,977,780,774,568,891,972,670,275,773,475,9
73,667,671,578,177,667,972,368,964,773,98774,2
77,669,776,879,576,171,478,873,680,669,979,369,6
5. Pukul 22.55 WIB (L5)Pengukuran kebisingan L5 diambil pada jam 22.55 mewakili jam 22.00-24.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.5 berikut.Tabel 4.5. Data hasil pengukuran pukul 23.00 pada Titik 169,859,771,960,959,758,9112,575,969,962,466,879,9
64,386,872,380,280,186,878,972,895,879,869,879
76,490,769,963,969,371,988,793,47074,776,973,9
76,394,873,389,98265,174,479,478,973,979,279,9
83,17680,172,876,387,971,5657365,374,287,9
88,884,964,963,17074,775,383,866,870,965,769,2
70,86567,971,480,370,968,764,379,865,363,872
64,95558,562,867,460,770,976,272,876,966,479,6
77,179,588,978,470,772,476,583,266,963,966,876,3
68,2102,966,173,881,361,376,279,668,46878,278,3
6. Pukul 01.19 WIB (L6)Pengukuran kebisingan L6 diambil pada jam 01.19 mewakili jam 24.00-03.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.6 berikut.Tabel 4.6. Data hasil pengukuran pukul 01.00 pada Titik 167,663,460,557,859,181,862,15057,663,150,655,4
64,749,759,161,348,551,154,465,352,547,648,267,7
4746,747,147,247,856,564,750,555,261,363,869,4
50,849,449,348,548,973,756,360,650,56188,964,8
64,355,15449,247,144,443,142,742,341,145,959,5
59,543,671,772,961,862,75156,448,949,86063,7
63,65371,25859,259,964,160,258,87788,994,4
55,354,257,164,973,65558,858,95147,347,743,4
44,8429547,15453,26364,859,368,358,950,6
49,256,852,870,753,647,545,459,863,474,653,653,5
7. Pukul 03.30 WIB (L7)Pengukuran kebisingan L7 diambil pada jam 03.30 mewakili jam 03.00-06.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.7 berikut.Tabel 4.7. Data hasil pengukuran pukul 04.00 pada Titik 165,248,757,646,746,458,248,153,750,663,667,566,2
74,668,155,556,76052,751,549,558,274,352,351,2
46,146,346,947,948,252,35350,552,950,44957,8
69,756,965,355,255,960,861,475,84847,247,952,3
60,451,460,963,449,157,154,955,655,262,765,974,3
72,751,548,963,948,247,246,947,761,869,679,359,5
52,262,647,346,447,558,56656,848,549,358,448,2
47,748,846,247,255,465,762,975,653,948,147,948,2
66,455,351,361,679,658,251,260,173,160,950,754,1
62,358,548,6524647,947,146,447,762,17951,7
b. Titik 2 (Lapangan SDN 042 Kota Pekanbaru)1. Pukul 07.55 WIB (L1)Pengukuran kebisingan L1 diambil pada jam 07.55 mewakili jam 06.00-09.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.8 berikut.Tabel 4.8. Data hasil pengukuran pukul 07.00 pada Titik 2.73,67474,276,679,771,273,575,272,774,582,472,9
107,975,76780,668,16978,973,973,576,281,873,7
75,974,780,875,973,580,672,279,299106,48296,7
7967,277,283,77979,568,680,879,511280,671,1
74,86572,771,968,779,997,371,179,673,871,582,4
7672,472,475,676,979,665,865,880,688,5108,3109
71,576,669,767,579,764,271,871,8110,580,474,868
69,272,374,172,579,574,279,679,671,372,884,274
79,474,769,179,374,871,372,58281,367,867,371,9
7475,281,682,176,391,780,374,271,574,271,172,4
2. Pukul 09.35 WIB (L2)Pengukuran kebisingan L2 diambil pada jam 10.35 mewakili jam 09.00-14.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.9 berikut.Tabel 4.9. Data hasil pengukuran pukul 10.00 pada Titik 2.84,975,880,670,571,281,174,279,970,579110,476,5
70,579,679,776,572,676,472,374,1707581,2108,2
73,570,16978,172,868,268,376,776,37173,669,7
73,877,969,873697475,3108,174,283,771,570,9
79,979,573,771,479,677,679,475,97878,372,970,8
81,873,969,579,986,273,673,170,368,671,287,172,4
72,469,772,871,474,772,474,468,577,872,265,981,6
73,794,972,872,176,972,874,173,873,769,771,686
74,371,97372,185,973,974,667,572,779,574,672,7
78,373,772,576,476,5737674,876,372,878,668
3. Pukul 15.50 WIB (L3)Pengukuran kebisingan L3 diambil pada jam 15.50 mewakili jam 14.00-17.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.10 berikut.Tabel 4.10. Data hasil pengukuran pukul 15.00 pada Titik 2.78,279,77669,274107,580,2108,570,171,873,668,4
75,165,277,971,67380,677,999,971,471,279,869,4
81,964,575,374,971,273,17272,772,278,470,765,7
89,667,376,368,967,269,891109,373,677,264,569,1
68,970,287,170,66968,968,47264,871,379,378,7
65,278,176,965,410369,688,272,570,775,865,475,2
71,769,98173,281,376,273,366,968,879,879,471,3
75,475,467,871,165,472,879,668,868,473,665,977,8
6775,26771,786,975,675,46971,774,476,371,8
72,86968,26977,366,57974,670,770,383,178,6
4. Pukul 20.18 WIB (L4)Pengukuran kebisingan L4 diambil pada jam 20.00 mewakili jam 17.00-22.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.11 berikut.Tabel 4.11. Data hasil pengukuran pukul 20.00 pada Titik 265,165,378,474,165,962,463,367,263,364,862,361
66,368,766,663,562,264,964,962,173,265,158,764,2
69,660,36063,961,163,866,365,468,363,160,867,9
62,3605764,258,855,572,160,361,564,16164,2
65,170,965,361,661,861,563,656,561,76260,354,5
60,856,361,96357,862,5706767,165,862,858,3
57,9716161,160,869,656,661,960,958,559,466,9
65,964,864,565,971,868,969,7656264,562,565,7
63,363,263,468,970,16558,960,456,465,763,762,9
71,566,370,365,770,462,66262,559,461,556,663,4
5. Pukul 23.08 WIB (L5)Pengukuran kebisingan L5 diambil pada jam 23.00 mewakili jam 22.00-24.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.12 berikut.Tabel 4.12. Data hasil pengukuran pukul 23.00 pada Titik 275,870,66055,365,962,758,563,957,259,360,265,5
60,254,359,958,460575955,753,554,955,549,5
48,859,158,256,248,949,866,461,654,15755,858,5
66,467,455,16266,44859,861,255,161,368,362,8
92,773,454,866,96770,374,162,856,354,553,556,3
5459,752,552,357,86865,157,259,277,967,762,7
58,856595657,359,461,164,463,278,962,858,2
50,453,560,861,361,654,152,168,553,658,661,260,5
57,358,662,957,960,257,965,56162,759,258,763,1
6957,456,954,852,153,551,957,260,352,749,364,3
6. Pukul 01.35 WIB (L6)Pengukuran kebisingan L6 diambil pada jam 01.00 mewakili jam 24.00-03.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.13 berikut.Tabel 4.13. Data hasil pengukuran pukul 01.00 pada Titik 257,155,551,346,340,546,54241,140,246,745,950,9
48,143,352,855,9566063,656,953,148,452,854
47,961,854,14845,147,756,468,246,250,152,956,5
52,448,556,447,845,247,658,963,452,256,542,649,5
40,749,165,241,852,356,148,139,141,137,943,738,8
40,648,547,452,950,340,75760,249,247,648,758,7
58,759,652,655,454,960,25548,155,949,54651
51,454,352,846,743,753,142,249,146,754,239,767,4
49,239,141,247,665,459,35861,968,84857,456,6
47,246,344,745,254,554,154,758,361,154,344,546,8
7. Pukul 03.45 WIB (L7)Pengukuran kebisingan L7 diambil pada jam 04.00 mewakili jam 03.00-06.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.14 berikut.Tabel 4.14. Data hasil pengukuran pukul 04.00 pada Titik 242,839,239,637,94760,245,838,953,543,442,342,5
40,24142,760,14452,855,74548,94349,440,2
45,659,454,759,143,239,743,138,341,254,946,549,5
51,647,448,738,939,938,140,243,342,839,443,148,9
49,847,452,252,979,374,153,753,245,847,560,651,4
60,749,442,539,839,747,146,458,453,669,960,446
48,541,744,441,342,539,740,837,644,542,361,742,5
51,943,43940,838,440,339,642,338,838,937,154,5
50,739,437,739,441,343,34760,957,25348,251,5
46,865,262,7524640,344,339,839,644,743,739,6
c. Titik 3 (Kelas V SDN 042 Kota Pekanbaru)1. Pukul 08.10 WIB (L1)Pengukuran kebisingan L1 diambil pada jam 08.10 mewakili jam 06.00-09.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.15 berikut.Tabel 4.15. Data hasil pengukuran pukul 07.00 pada Titik 3.76,580,1112,782,38296,573,770,672,395,78286
82,2110,683,783,481,785,177,38579,694,885,176
80,3109,79492,495,780,982,894,891,379,581,694,8
69,7103,781,291,776,780,781,676,379,473,794,873,7
73,781,310776,394,883,273,780,374,173,576,392,4
79,691,379,474,176,392,677,19176,377,482,894
79,7101,675,982,8106,174,276,59392,680,574103,1
89,172,667,374106,773,478,282,375,970,477,3102,2
73,770,672,377,39090,573,375,481,292,670,4101,6
76,272,570,4106,876,881,485105,1103,291,777,591,3
2. Pukul 09.55 WIB (L2)Pengukuran kebisingan L2 diambil pada jam 09.55 mewakili jam 09.00-14.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.16 berikut.Tabel 4.16. Data hasil pengukuran pukul 10.00 pada Titik 3.78,67276,682,273,79379,181,876,174,8109,271
7973,179,281,481,579108,878,4109,174,292,1125,5
75,677,579,680,579,880,881,279,577,8111,684,581,8
76,683,683,2106,1109,480,4113,874,771,474,184,788,2
112,882,881,5110,37982,779,679,6112,291,379,486,2
87,574,291,375,479,675,384,875,68783112,379,6
94,478,276,575,47978,373,776,472,479,299,981,1
82,576,575,782,483,180,485,280,293,580,679,7112,1
81,880,697,5111,277,679,596,777,787,379,181,880
103,7106,780,790,1838181,8109,380,3109,581,679,5
3. Pukul 16.05 WIB (L3)Pengukuran kebisingan L3 diambil pada jam 16.05 mewakili jam 14.00-17.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.17 berikut.Tabel 4.17. Data hasil pengukuran pukul 15.00 pada Titik 3.89,693,792,286,885,180,383,88788,185,383,779,5
87,990,98685,182,386,384,882,185,785,985,379,8
94,18985,185,391,189,79087,688,684,484,479,5
96,581,98987,591,680,681,979,584,587,38582,9
98,689,289,880,38985,182,683,485,785,785,496,3
98,985,888,584,692,78689,592,282,196,888101,1
99,491,288,683,784,782,5838384,790,482,685,7
94,398,385,8898986,3109,183,590,483,281,481,1
95,591,983,989,486,584,285,8112,684,886,48584,8
90,291,184,58792,385,780,182,484,681,982,494,6
4. Pukul 20.31 WIB (L4)Pengukuran kebisingan L4 diambil pada jam 20.00 mewakili jam 17.00-22.00 WIB. Data hasil pengukuran dapat dilihat pada Tabel 4.18 berikut.Tabel 4.18. Data hasil pengukuran pukul 20.00 pada Titik 366,759,356,554,753,854,854,551,647,650,85054,9
53,460,749,756,760,156,158,762,455,752,95352,3
56,357,264,269,366,766,459,155,550,153,253,655,1
55,854,451,556,253,857,264,453,852,556,456,254,6
53,251,357,360,857,158,257,45452,65960,357,1
65,963,756,157,65957,458,153,156,155,554,655,5
60,968,556,454,156,956,860,358,355,355,260,263,9
51,365,252,262,55856,254,655,756,952,253,454,9
55,555,257,154,458,955,957,354,451,952,854,159,3
58,95961,155,754,455,354,550,453,655,956,954,7
5. Pukul 23.19 WIB (L5)Pengukuran kebisingan L5 diambil pada jam 23.00 mewakili jam 22.00-24.00 WIB . Data hasil pengukuran dapat dilihat pada Tabel 4.19 berikut.Tabel 4.19. Data hasil pengukuran pukul 23.00 pada Titik 364,953,950,65850,249,748,446,94853,451,146,2
43,441,852,552,752,345,248,548,250,954,560,370,6
53,150,755,250,854,552,94952,449,644,544,956,5
57,857,265,860,760,555,648,554,354,651,847,352,6
67,855,145,247,347,650,751,552,849,747,348,239,2
4644,75456,756,654,558,852,258,955,252,849,7
54,252,45349,64845,251,955,347,648,145,744,7
5257,653,554,658,752,647,149,452,257,639,838,2
39,64341,244,649,850,951,353,550,851,451,553,6
63,655,456,556,557,55853,954,464,155,155,353
6. Pukul 01.50 WIB (L6)Pengukuran kebisingan L6 diambil pada jam 01.00 mewakili jam 24.00-03.00 WIB . Data hasil pengukuran dapat dilihat pada Tabel 4.20 berikut.Tabel 4.20. Data hasil pengukuran pukul 01.00 pada Titik 336,84949,340,647,144,453,438,342,644,249,744,3
48,248,941,9415438,941,256,844,748,936,945
37,349,536,341,536,136,837,645,146,142,149,255
45,641,651,139,65643,340,835,534,93634,435,2
35,534,538,539,649,5383935,73340,944,938,8
36,645,54139,339,345,549,744,340,136,535,543,4
39,337,453,350,450,146,34243,940,147,246,941,3
43,940,948,851,350,149,843,44139,739,339,847,3
50,142,344,940,741,74654,153,455,944,252,750,6
45,547,85049,343,140,643,655,552,141,148,840
7. Pukul 04.00 WIB (L7)Pengukuran kebisingan L7 diambil pada jam 04.00 mewakili jam 03.00-06.00 WIB . Data hasil pengukuran dapat dilihat pada Tabel 4.21 berikut.Tabel 4.21. Data hasil pengukuran pukul 04.00 pada Titik 341,940,853,931,754,148,149,347,943,442,139,735,5
37,437,237,93856,555,153,67059,244,345,645,6
50,751,458,238,750,44046,839,534,435,536,136,2
3536,239,346,542,557,25745,245,44451,445,6
39,63835,641,745,945,131,136,256,13742,938,9
38,433,735,542,338,145,253,6454352,846,145,5
36,240,645,137,14448,750,849,258,635,76156
55,24452,445,140,648,951,747,238,738,433,833
33,331,733,332,440,152,632,13232,638,139,742
53,245,848,740,940,245,144,148,45664,261,847,8
4.1 Pengolahan Data4.1.1 Perhitungan LTM5 Pengolahan data hasil pengukuran kebisingan dilakukan dengan metode sederhana melalui beberapa perhitungan. Langkah-langkah dalam pengolahan data kebisingan ini adalah sebagai berikut :1. Menghitung Range (r)2. Menghitung jumlah kelas (k)3. Menghitung interval kelas (i)4. Membuat distribusi frekuensi5. Menghitung nilai LTM5 Dengan menggunakan tahapan diatas dilakukan perhitungan nilai LTM5. Berikut adalah perhitungan masing-masing titik.a. Titik 1 (Jalan Adi Sucipto)1. Pukul 07.30 WIB (L1)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L1) seperti pada Tabel 4.1 Range (r)Max=125,1Min=63,3Range=Max Min=125,1 63,3=61,8 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9
Interval Kelas (i)Interval Kelas== = 7,9 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFREKUENSITn.100,1 Ln
63,371,267,226137416285
71,379,275,2591967509628
79,387,283,2234839413044
87,395,291,267965556181
95,3103,299,218376543626
103,3111,2107,23158557251663
111,3119,2115,21333476208190
119,3127,2123,212104092627670
Tn.100,1 Ln2619412526287
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 2619412526287)=103,39 dB
2. Pukul 09.20 WIB (L2)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L2) seperti pada Tabel 4.2 Range (r)Max=98,8Min=62,5Range=Max Min=98,8 62,5=36,3
Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 4,6 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFREKUENSITn.100,1 Ln
62,562,562,5515130313
67,271,869,527241124680
71,976,574,2451186015634
76,681,278,9272100108169
81,385,983,681836402550
8690,688,332032353056
90,795,393,000
95,4100,097,7529501758557
Tn.100,1 Ln36912892958
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 36912892958)=84,88dB
3. Pukul 15.30 WIB (L3)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L3) seperti pada Tabel 4.3 Range (r)Max=113,2Min=52Range=Max Min=113,2 52 =61,20 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 7,8 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFREKUENSITn.100,1 Ln
5259,855,92778090
59,967,763,8819190663
67,875,671,755813509613
75,783,579,6403648043357
83,691,487,584498730602
91,599,395,4310402105514
99,4107,2103,3121379620895
107,3115111,23390950033536
Tn.100,1 Ln431712012270
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 431712012270)=95,56 dB
4. Pukul 20.05 WIB (L4)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L4) seperti pada Tabel 4.4 Range (r)Max=98,2Min=60,7Range=Max Min=98,2 60,7=37,5 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 4,8 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFREKUENSITn.100,1 Ln
60,760,760,744699590
60,860,860,82428854346
60,960,960,93543059407
61,061,061,03746580240
61,161,161,179017747
61,261,261,267909540
61,361,361,345395852
61,461,461,434141153
Tn.100,1 Ln149657875
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 149657875)=60,96 dB
5. Pukul 22.55 WIB (L5)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L5) seperti pada Tabel 4.5 Range (r)Max=112,5Min=55Range=Max Min=112,5 - 55=57,5 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 7,3 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFREKUENSITn.100,1 Ln
5562,358,785872265,311
62,469,766,130121413869,5
69,877,173,543959504167,3
77,284,680,9242952711499
84,792,088,3106783301762
92,199,495,7311220023231
99,5106,8103,1120620721905
106,9114,2110,61113693393442
Tn.100,1 Ln156356942141
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 156356942141+11)=91,15 dB
6. Pukul 01.19 WIB (L6)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L6) seperti pada Tabel 4.6 Range (r)Max=95Min=41,1Range=Max Min=95 41,1=53,9 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 6,9 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFREKUENSITn.100,1 Ln
41,148,044,522624081,6038
48,154,951,5314363327,329
55,061,958,43323046630,58
62,068,865,42069304414,13
68,975,872,48137549269,4
75,982,779,32170622262,7
82,889,786,32846589927,9
89,896,793,224200591967
Tn.100,1 Ln5452691880
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 5452691880)=76,40 dB
7. Pukul 03.30 WIB (L7)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L7) seperti pada Tabel 4.7 Range (r)Max=79,6Min=46Range=Max Min=79,6 46 =33,6 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 4,3
Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFrekuensiTn.100,1 Ln
4650,348,1392539626,036
50,454,652,5223922276,193
54,759,056,92110250501,49
59,163,461,31520045985,18
63,567,865,61036588657,38
67,972,170,0330052323,53
72,276,574,47191984058,5
76,680,978,83225267588,7
Tn.100,1 Ln520651017
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x520651017 )=66,20 dB
b. Titik 2 (Lapangan SDN 042 Kota Pekanbaru)1. Pukul 07.55 WIB (L1)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L1) seperti pada Tabel 4.8 Range (r)Max=112Min=64,2Range=Max Min=112 64,2=47,8 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 6,1 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFREKUENSITn.100,1 Ln
64,270,367,21790047147
70,476,573,4531170299194
76,682,779,6373405828384
82,888,985,831151177496
8995,192,011599635510
95,2101,398,2320005172069
101,4107,5104,4127798479155
107,6113,7110,65579416743339
. Tn.100,1 Ln634637382294
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 634637382294)=97,23 dB2. Pukul 09.30 WIB (L2)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L2) seperti pada Tabel 4.9 Range (r)Max=110,4Min=65,9Range=Max Min=110,4 65,9 =44,5 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 5,7 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFREKUENSI Tn.100,1 Ln
65,971,668,729216486159
71,777,474,5591674496130
77,583,280,3222373858441
83,389,086,162461406748
89,194,891,900
94,9100,697,715929692009
100,7106,4103,500
106,5112,2109,33257130379727
Tn.100,1 Ln269786319212
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 269786319212)=93,52 dB
3. Pukul 15.40 WIB (L3)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L3) seperti pada Tabel 4.10 Range (r)Max=109,3Min=64,5Range=Max Min=109,3 64,5 =44,8 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 5,7 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFREKUENSITn.100,1 Ln
64,570,267,339211838467
70,376,073,145925219229
76,181,878,9251954214112
81,987,684,741188754374
87,793,490,522259759038
93,599,296,300
99,3105,0102,1232663455864
105,1110,8107,93186274493502
Tn.100,1 Ln225477734586
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 225477734586)=92,74
4. Pukul 20.18 WIB (L4)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L4) seperti pada Tabel 4.11 Range (r)Max=78,4Min=54,5Range=Max Min=78,4 - 54,5 =23,9 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 3,0 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFREKUENSITn.100,1 Ln
54,560,657,573973005
60,766,863,72763595571
66,972,969,931303016918
73,079,176,1331338631977
79,285,382,3122020089328
85,491,588,485588836288
91,697,794,612899168612
97,8103,8100,8112031382861
Tn.100,1 Ln24248694559
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 24248694559)=83,06
5. Pukul 23.08 WIB (L5)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L5) seperti pada Tabel 4.12 Range (r)Max=92,7Min=48Range=Max Min=92,7 48 =44,7 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 5,7 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFrekuensiTn.100,1 Ln
4853,750,8182185630,266
53,859,556,64721627704,69
59,665,362,43357548617,49
65,471,068,216105742438,1
71,176,874,0375137886,3
76,982,679,82189834917
82,788,485,600
88,594,291,311363210320
Tn.100,1 Ln1815287514
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 1815287514)=71,62
6. Pukul 01.35 WIB (L6)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L6) seperti pada Tabel 4.13 Range (r)Max=68,8Min=37,9Range=Max Min=68,8 37,9=30,9 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 3,9 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFrekuensiTn.100,1 Ln
37,941,839,914135725,1915
41,945,943,912294292,0485
46,049,947,9321985235,877
50,053,952,0172667939,105
54,058,056,02610322031,83
58,162,060,01212051412,36
62,166,064,0410162055,13
66,170,068,1319280028,2
Tn.100,1 Ln56898719,75
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 56898719,75)=56,58
7. Pukul 03.45 WIB (L7)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L7) seperti pada Tabel 4.14 Range (r)Max=79,3Min=37,1Range=Max Min=79,3 37,1=42,2 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 5,4
Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFrekuensiTn.100,1 Ln
37,142,539,845428169,791
42,647,945,3321072409,138
48,053,450,7202360736,645
53,558,956,293741683,715
59,064,361,71014643051,26
64,469,867,115157492,452
69,975,372,6236330854,71
75,480,778,1163981237,79
Tn.100,1 Ln127715635,5
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 127715635,5)=60,09
c. Titik 3 (Kelas V SDN 042 Kota Pekanbaru)1. Pukul 07.50 WIB (L1)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L1) seperti pada Tabel 4.15 Range (r)Max=112,7Min=67,3Range=Max Min=112,7 67,3=45,4 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 5,8 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFREKUENSITn.100,1 Ln
67,373,170,212125296122
73,279,076,1361462375433
79,184,982,0284425011597
8590,887,984918655081
90,996,793,82252623419181
96,8102,699,7327917571471
102,7108,5105,68289631883757
108,6114,4111,53422549543292
Tn.100,1 Ln803653755935
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 803653755935)=98,262. Pukul 09.40 WIB (L2)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L2) seperti pada Tabel 4.16 Range (r)Max=125,5Min=71Range=Max Min=125,5 - 71 =54,5 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 6,9 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFREKUENSITn.100,1 Ln
7177,974,528783056133
7884,981,5588129481692
8591,988,596322333096
9298,995,5621124484231
99105,9102,5235291072711
106112,9109,5151326557632791
113119,9116,51443235833484
120126,9123,512221441412281
Tn.100,1 Ln4062885306418
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 4062885306418)=105,30
3. Pukul 15.50 WIB (L3)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L3) seperti pada Tabel 4.17 Range (r)Max=112,6Min=79,5Range=Max Min=112,6 79,5 =33,1 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 4,2 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFREKUENSITn.100,1 Ln
79,583,781,6294196845921
83,888,085,94718351557972
88,192,390,22627390406945
92,496,694,51028423345321
96,7101,098,8538343808805
101,1105,3103,2120690705575
105,4109,6107,5155824566014
109,7113,9111,81150617491483
Tn.100,1 Ln343838728036
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 343838728036)=94,57
4. Pukul 20.31 WIB (L4)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L4) seperti pada Tabel 4.18 Range (r)Max=69,3Min=47,6Range=Max Min=69,3 47,6 =21,7 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 2,8 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFREKUENSI Tn.100,1 Ln
47,653,450,55559405
53,559,356,4156491729
59,465,162,24575334589
65,271,068,130194274557
71,176,974,011275549814
77,082,879,97678294415
82,988,685,751874144054
88,794,591,622899851273
Tn.100,1 Ln6004499836
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 6004499836)=76,99
5. Pukul 23.19 WIB (L5)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L5) seperti pada Tabel 4.19 Range (r)Max=70,6Min=38,2Range=Max Min=70,6 38,2 =32,4 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 4,1 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFrekuensiTn.100,1 Ln
38,242,340,3663712,41788
42,446,544,513364889,9161
46,650,848,7292151603,193
50,955,052,9407844582,71
55,159,257,12311922940,15
59,363,461,434110763,157
63,567,765,6414487947,55
67,871,969,8219147961,35
Tn.100,1 Ln60094400,44
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 60094400,44)=56,82
6. Pukul 01.50 WIB (L6)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L6) seperti pada Tabel 4.20 Range (r)Max=56,8Min=33Range=Max Min=56,8 - 33=23,8 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 3,0 Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFrekuensiTn.100,1 Ln
3336,034,51028273,16912
36,139,237,61692948,72901
39,342,340,830358091,2503
42,445,443,918441462,6255
45,548,547,013655109,3094
48,651,750,2212174396,275
51,854,853,371489245,932
54,957,956,452185683,978
Tn.100,1 Ln7425211,268
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 7425211,268)=47,74
7. Pukul 04.00 WIB (L7)Perhitungan dilakukan berdasarkan hasil pengukuran kebisingan (L7) seperti pada Tabel 4.21 Range (r)Max=70Min=31,1Range=Max Min=70 31,1=38,9 Jumlah Kelas (k)Kelas =1 + 3,3 log n(n=120)=1 + 3,3 log 120=7,86 =7,9 Interval Kelas (i)Interval Kelas== = 4,9
Distribusi FrekuensiNILAI STATISTIKNILAI TENGAHFrekuensiTn.100,1 Ln
31,136,033,61943268,13839
36,141,138,631225738,441
41,246,143,729675260,0301
46,251,248,7151116846,592
51,356,253,8163809355,159
56,361,358,875329159,773
61,466,363,924868777,354
66,471,468,917784292,342
. Tn.100,1 Ln 23852697,83
Nilai LTM5 LTM5 =10 log 1/n . Tn.100,1 Ln = 10 log (1/120 x 23852697,83)=52,814.1.2 Perhitungan LSRumus yang digunakan :
Ls = 10 log 1/16 (T1.100,1L1+ T2.100,1L2+ T3.100,1L3+ T4.100,1L4)
a. Titik 1Diketahui : T1=3 ,L1=103,39T2=5 ,L2=84,88T3=3 ,L3=95,56T4=5 ,L4=60.96Sehingga, Ls =10 log 1/16 (T1.100,1L1+ T2.100,1L2+ T3.100,1L3+ T4.100,1L4)=10 log 1/16 (3.100,1.103,39+ 5.100,1.84,88+ 3.100,1.95,56+ 5.100,1.60,96)=96,87b. Titik 2Diketahui : T1=3 ,L1=97,23T2=5 ,L2=93,52T3=3 ,L3=92,74T4=5 ,L4=83,06Sehingga, Ls =10 log 1/16 (T1.100,1L1+ T2.100,1L2+ T3.100,1L3+ T4.100,1L4)=10 log 1/16 (3.100,1.97,23+ 5.100,1.93,52+ 3.100,1.92,74+ 5.100,1.83,06)=93,24c. Titik 3Diketahui : T1=3 ,L1=98,26T2=5 ,L2=105,3T3=3 ,L3=94,57T4=5 ,L4=76,99Sehingga, Ls =10 log 1/16 (T1.100,1L1+ T2.100,1L2+ T3.100,1L3+ T4.100,1L4)=10 log 1/16 (3.100,1.98,26+ 5.100,1.105,3+ 3.100,1.94,57+ 5.100,1.76,99)=100,934.1.3 Perhitungan LM Rumus yang digunakan :
LM = 10 log 1/8 (T5.100,1L5+ T6.100,1L6+ T7.100,1L7)
a. Titik 1Diketahui : T5=2 ,L5=91,15T6=3 ,L6=76,40T7=3 ,L7=66,20Sehingga, LM =10 log 1/8 (T5.100,1L5+ T6.100,1L6+ T7.100,1L7)=10 log 1/8 (2.100,1.91,15+ 3.100,1.76,40+ 3.100,1.66,20)=85,36b. Titik 2Diketahui : T5=2 ,L5=71,62T6=3 ,L6=56,58T7=3 ,L7=60,09Sehingga, LM =10 log 1/8 (T5.100,1L5+ T6.100,1L6+ T7.100,1L7)=10 log 1/8 (2.100,1.71,62+ 3.100,1.56,58+ 3.100,1.60,09)=66,22c. Titik 3Diketahui : T5=2 ,L5=56,82T6=3 ,L6=47,74T7=3 ,L7=52,81Sehingga, LM =10 log 1/8 (T5.100,1L5+ T6.100,1L6+ T7.100,1L7)=10 log 1/8 (2.100,1.56,82+ 3.100,1.47,74+ 3.100,1.52,81)=53,31
4.1.4 Perhitungan LSM Rumus yang digunakan :
LSM = 10 log 1/24 (16.100,1Ls+ 8.100,1(LM+5))
a. Titik 1Diketahui : LS=96,87 LM=85,36Sehingga, LSM =10 log 1/24 (16.100,1Ls+ 8.100,1(LM+5))=10 log 1/24 (16.100,1.96,87+ 8.100,1(85,36+5))=95,57b. Titik 2Diketahui : LS=93,24LM=66,22Sehingga, LSM =10 log 1/24 (16.100,1Ls+ 8.100,1(LM+5))=10 log 1/24 (16.100,1.93,24+ 8.100,1(66,22+5))=91,49c. Titik 3Diketahui : LS=100,93LM=53,31Sehingga, LSM =10 log 1/24 (16.100,1Ls+ 8.100,1(LM+5))=10 log 1/24 (16.100,1.100,93+ 8.100,1(53,31+5))=99,17
BAB VKESIMPULAN
5.1 Kesimpulan Pada kegiatan pengukuran tingkat kebisingan di Sekolah Dasar Negeri 042 Kota Pekanbaru memiliki tingkat kebisingan yang tinggi. Adapun lokasi pengukuran terdiri dari tiga titik diantaranya memiiki data sebagai berikut : Jalan Adi Sucipto, dengan tingkat kebisingan 95,57 dB Lapangan SDN 042 Kota Pekanbaru dengan tingkat kebisingan 91,49 dB Kelas V SDN 042 Kota Pekanbaru dengan tingkat kebisingan 99,17 dBHal ini terjadi dikarenakan faktor lokasi sekolah yang berada di kawasan penghubung yang sering dilalui oleh beragam kendaraan pada jam-jam tertentu. Kebisingan dari kendaraan yang melintas menjadi faktor utama tingginya tingkat kebisingan di lokasi studi SDN 042 Kota Pekanbaru.