Speed (mph) | 1/3 OB Levels Modeled (dBA) | |||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
50.0 Hz | 63.0 Hz | 80.0 Hz | 100.0 Hz | 125.0 Hz | 160.0 Hz | 200.0 Hz | 250.0 Hz | 315.0 Hz | 400.0 Hz | 500.0 Hz | 630.0 Hz | 800.0 Hz | 1000.0 Hz | 1250.0 Hz | 1600.0 Hz | 2000.0 Hz | 2500.0 Hz | 3150.0 Hz | 4000.0 Hz | 5000.0 Hz | 6300.0 Hz | 8000.0 Hz | 10000.0 Hz | |
80 | 18.5 | 25.2 | 29.8 | 33.4 | 37.4 | 42.6 | 48.1 | 54.2 | 60.9 | 67.5 | 73.2 | 77.9 | 81.4 | 82.9 | 82.9 | 81 | 77.7 | 73.4 | 68.1 | 62.2 | 56.7 | 51.5 | 46.7 | 42.7 |
70 | 20 | 26.5 | 30.8 | 34.1 | 37.5 | 41.9 | 46.6 | 51.8 | 57.6 | 63.4 | 68.3 | 72.4 | 75.4 | 76.8 | 76.7 | 75 | 72.1 | 68.2 | 63.5 | 58.3 | 53.4 | 48.6 | 44.1 | 40.1 |
60 | 21.5 | 27.9 | 31.9 | 34.7 | 37.5 | 41.1 | 45 | 49.4 | 54.2 | 59.2 | 63.3 | 66.9 | 69.4 | 70.6 | 70.5 | 69 | 66.5 | 63.1 | 59 | 54.4 | 50 | 45.7 | 41.5 | 37.5 |
50 | 23 | 29.3 | 33 | 35.4 | 37.6 | 40.4 | 43.5 | 47 | 50.9 | 55 | 58.4 | 61.4 | 63.5 | 64.4 | 64.3 | 63 | 60.8 | 58 | 54.4 | 50.5 | 46.7 | 42.9 | 38.9 | 34.9 |
40 | 24.5 | 30.6 | 34 | 36 | 37.7 | 39.7 | 42 | 44.6 | 47.6 | 50.8 | 53.5 | 55.8 | 57.5 | 58.3 | 58.1 | 57 | 55.2 | 52.8 | 49.9 | 46.6 | 43.4 | 40 | 36.3 | 32.4 |
30 | 26 | 32 | 35.1 | 36.7 | 37.8 | 39 | 40.4 | 42.2 | 44.3 | 46.6 | 48.6 | 50.3 | 51.6 | 52.1 | 51.9 | 51 | 49.6 | 47.7 | 45.3 | 42.7 | 40 | 37.1 | 33.7 | 29.8 |
20 | 27.6 | 33.3 | 36.2 | 37.3 | 37.8 | 38.3 | 38.9 | 39.8 | 41 | 42.4 | 43.7 | 44.8 | 45.6 | 45.9 | 45.8 | 45 | 44 | 42.5 | 40.8 | 38.8 | 36.7 | 34.3 | 31.2 | 27.2 |
10 | 29.1 | 34.7 | 37.2 | 38 | 37.9 | 37.6 | 37.4 | 37.4 | 37.7 | 38.2 | 38.8 | 39.3 | 39.6 | 39.7 | 39.6 | 39 | 38.3 | 37.4 | 36.2 | 34.9 | 33.3 | 31.4 | 28.6 | 24.7 |