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 | 32.9 | 40.9 | 44.6 | 46.1 | 47 | 48.4 | 50.3 | 53 | 56.4 | 60.2 | 63.5 | 66.4 | 68.5 | 69.4 | 69.1 | 67.5 | 65.1 | 62 | 58.4 | 54.7 | 51.6 | 48.8 | 46.5 | 44.4 |
70 | 31.6 | 39.7 | 43.6 | 45.2 | 46.2 | 47.4 | 49.2 | 51.6 | 54.6 | 58 | 61.1 | 63.9 | 65.9 | 66.9 | 66.9 | 65.6 | 63.5 | 60.7 | 57.3 | 53.6 | 50.4 | 47.4 | 44.8 | 42.5 |
60 | 30.2 | 38.5 | 42.7 | 44.4 | 45.4 | 46.5 | 48 | 50.1 | 52.7 | 55.8 | 58.6 | 61.3 | 63.3 | 64.5 | 64.7 | 63.7 | 62 | 59.4 | 56.2 | 52.6 | 49.2 | 45.9 | 43 | 40.7 |
50 | 28.9 | 37.3 | 41.7 | 43.6 | 44.6 | 45.6 | 46.9 | 48.6 | 50.9 | 53.6 | 56.2 | 58.7 | 60.8 | 62 | 62.4 | 61.9 | 60.4 | 58.1 | 55.1 | 51.5 | 48 | 44.5 | 41.3 | 38.8 |
40 | 27.6 | 36.1 | 40.7 | 42.8 | 43.8 | 44.7 | 45.7 | 47.1 | 49 | 51.4 | 53.8 | 56.1 | 58.2 | 59.6 | 60.2 | 60 | 58.9 | 56.9 | 54 | 50.5 | 46.8 | 43.1 | 39.5 | 36.9 |
30 | 26.3 | 34.9 | 39.7 | 42 | 43.1 | 43.8 | 44.6 | 45.6 | 47.2 | 49.2 | 51.3 | 53.5 | 55.6 | 57.1 | 58 | 58.1 | 57.3 | 55.6 | 52.9 | 49.4 | 45.6 | 41.6 | 37.8 | 35 |
20 | 25 | 33.7 | 38.8 | 41.2 | 42.3 | 42.9 | 43.4 | 44.2 | 45.3 | 47 | 48.9 | 51 | 53.1 | 54.7 | 55.8 | 56.3 | 55.7 | 54.3 | 51.8 | 48.3 | 44.5 | 40.2 | 36.1 | 33.2 |
10 | 23.7 | 32.5 | 37.8 | 40.3 | 41.5 | 42 | 42.3 | 42.7 | 43.5 | 44.8 | 46.4 | 48.4 | 50.5 | 52.3 | 53.6 | 54.4 | 54.2 | 53 | 50.7 | 47.3 | 43.3 | 38.8 | 34.3 | 31.3 |