0

100

200

300

400

500

600

700

800

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

0

1000

2000

3000

4000

5000

6000

7000

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69

34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69

0

10

20

30

40

50

60

70

80

90

100

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69

1229 40

0

500

1000

1500

2000

2500

3000

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69

1229 40

Calm2.9%

2.1m/s1,344

Calm2.0%

2.4m/s1,344

Calm 0.4m/s

0

1000

2000

3000

4000

5000

6000

A A-B B B-C C C-D D E F G

0.5LB

Hw

0.5LB

2LB 5LB

LB =min HB,HW

LB HB HW

0.0

0.5

1.0

1.5

2.0

2.5

0 1000 2000 3000 4000 5000 6000

Rd10

-5

X(m)

0.0

0.5

1.0

1.5

2.0

2.5

0 1000 2000 3000 4000 5000 6000

Rd10

-5

X(m)

0.0

0.5

1.0

1.5

2.0

2.5

0 1000 2000 3000 4000 5000 6000

Rd10

-5

X(m)

0.0

0.5

1.0

1.5

2.0

2.5

0 1000 2000 3000 4000 5000 6000

Rd10

-5

X(m)

0.0

0.5

1.0

1.5

2.0

2.5

0 1000 2000 3000 4000 5000 6000

Rd10

-5

X(m)

0.0

0.5

1.0

1.5

2.0

2.5

0 1000 2000 3000 4000 5000 6000

Rd10

-5

X(m)

0.0

0.5

1.0

1.5

2.0

2.5

0 1000 2000 3000 4000 5000 6000

Rd10

-5

X(m)

0.0

0.5

1.0

1.5

2.0

2.5

0 1000 2000 3000 4000 5000 6000

Rd10

-5

X(m)

))2 KK

0

0.5

1

1.5

2

Rd10

-5

0

0.5

1

1.5

2

Rd10

-5

0

0.5

1

1.5

2

Rd10

-5

0

0.5

1

1.5

2

Rd10

-5

0

0.5

1

1.5

2

Rd10

-5

0

0.5

1

1.5

2

Rd10

-5

0

0.5

1

1.5

2

Rd10

-5

0

0.5

1

1.5

2

Rd10

-5

)) KK

××

××

8

8.3

8.3.1

10 90% (dB)

1

0.4m3 82 2 0.7m3 82 3 1.6m3 82 4 3.4m3 82 5 10m3 82 6

0.4m3 77

7 0.7m3 77 8 1.6m3 81 9 96

10 40t 72 11 (CD 100 150t 82 12 79 13 3 67 14

10t 74 15 25t 74 16 50t 74 17 200t 79 18

70t 73 19 100t 73 20 150t 73 21 300t 73 22 450t 73 23 2.9t 150m 73 24 8t 85 25 78 26 2.9t 150m 78 27 78 28 20t 76 29 0.7m3 80 30 63 31 66

()

( 12dB )

93.4 B(50 ) 89.1 B(33 )

音源

計画地

仮囲いH=3.0ｍ

予測地点H=1.2ｍ

GL

音源

計画地

緩衝緑地1.5ｍ

仮囲いH=3.0ｍ

予測地点H=1.2ｍ

GL

125 250 500 1000 2000 4000

0.01 0.01 0.02 0.02 0.02 0.03

0.25 0.63 0.93 0.94 0.87 0.91

63 125 250 500 1000 2000 4000 8000

33 37 42 50 58 66 69 67

10 log10N 13 1 N Ld 5 8 N 0 N 1

5 8 |N| -0.36 N 0 0 N -0.36

(a) (b)

N

Ld(d

B)

(SMW)

45

50

55

60

65

70

75

0 10 20 30 40 50 60 70 80 90 100

45

50

55

60

65

70

75

0 10 20 30 40 50 60 70 80 90 100

45

50

55

60

65

70

75

0 10 20 30 40 50 60 70 80 90 100

8

8.3

8.3.2

(m)

(dB) 1

0.4m3 5 52 2 0.7m3 5 52 3 1.6m3 5 52 4 3.4m3 5 52 5 10m3 5 52 6

0.4m3 5 72

7 0.7m3 5 72 8 1.6m3 5 72 9 10 67

10 40t 5 52 11 (CD 100 150t 5 63 12 5 56 13 3 13 45 14

10t 5 52 15 25t 5 52 16 50t 5 52 17 200t 5 52 18

70t 5 52 19 100t 5 52 20 150t 5 52 21 300t 5 52 22 450t 5 52 23 2.9t 150m 5 52 24 8t 7 59 25 5 62 26 2.9t 150m 5 75 27 7 53 28 20t 7 48 29 0.7m3 7 58 30 7 43 31 5 60

()

77.1 B(55.56 ) 82.3 B(33 )

8.3.2-4

35

40

45

50

55

60

65

0 10 20 30 40 50 60 70 80 90 100

35

40

45

50

55

60

65

0 10 20 30 40 50 60 70 80 90 100

dB

L10 dB

2

3

4

35

40

45

50

55

60

65

0 10 20 30 40 50 60 70 80 90 100