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 | 33.1 | 43.7 | 49.3 | 51.9 | 53.3 | 54.6 | 56 | 58 | 60.6 | 63.7 | 66.6 | 69.3 | 71.5 | 72.8 | 73 | 72 | 70 | 67.1 | 63.4 | 59.1 | 55.2 | 51.5 | 48.6 | 47.1 |
70 | 32.9 | 42.9 | 48.1 | 50.4 | 51.6 | 52.7 | 53.9 | 55.7 | 58.1 | 60.8 | 63.5 | 66 | 67.9 | 69 | 69.1 | 68.2 | 66.3 | 63.7 | 60.3 | 56.4 | 52.8 | 49.4 | 46.5 | 44.5 |
60 | 32.6 | 42.1 | 46.9 | 48.9 | 49.9 | 50.8 | 51.9 | 53.4 | 55.5 | 58 | 60.4 | 62.6 | 64.3 | 65.2 | 65.3 | 64.3 | 62.6 | 60.2 | 57.2 | 53.8 | 50.5 | 47.3 | 44.4 | 41.8 |
50 | 32.4 | 41.3 | 45.7 | 47.5 | 48.2 | 48.9 | 49.8 | 51.1 | 53 | 55.2 | 57.3 | 59.2 | 60.7 | 61.4 | 61.4 | 60.5 | 58.9 | 56.7 | 54.1 | 51.1 | 48.2 | 45.3 | 42.3 | 39.1 |
40 | 32.1 | 40.5 | 44.5 | 46 | 46.6 | 47 | 47.7 | 48.8 | 50.4 | 52.4 | 54.2 | 55.9 | 57.1 | 57.7 | 57.6 | 56.7 | 55.2 | 53.3 | 51 | 48.4 | 45.9 | 43.2 | 40.1 | 36.5 |
30 | 31.9 | 39.7 | 43.4 | 44.6 | 44.9 | 45.1 | 45.6 | 46.5 | 47.9 | 49.5 | 51.1 | 52.5 | 53.5 | 53.9 | 53.7 | 52.8 | 51.5 | 49.8 | 47.9 | 45.7 | 43.6 | 41.2 | 38 | 33.8 |
20 | 31.6 | 38.9 | 42.2 | 43.1 | 43.2 | 43.2 | 43.5 | 44.2 | 45.3 | 46.7 | 48 | 49.1 | 49.9 | 50.1 | 49.8 | 49 | 47.8 | 46.4 | 44.7 | 43 | 41.3 | 39.1 | 35.9 | 31.2 |
10 | 31.3 | 38.1 | 41 | 41.6 | 41.5 | 41.3 | 41.4 | 41.9 | 42.8 | 43.9 | 44.9 | 45.8 | 46.3 | 46.3 | 46 | 45.1 | 44.1 | 42.9 | 41.6 | 40.3 | 38.9 | 37 | 33.8 | 28.5 |