5

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


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


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


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


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


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


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


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


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


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


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


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


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


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


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


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


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


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


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


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.

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