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 | 32.8 | 43.6 | 49.5 | 52.2 | 53.8 | 55.2 | 56.8 | 59 | 61.9 | 65.5 | 68.9 | 72.4 | 75.5 | 77.5 | 78.6 | 78.3 | 76.8 | 74.1 | 70.3 | 65.7 | 61.1 | 56.8 | 53.5 | 52.2 |
70 | 31.6 | 41.4 | 46.8 | 49.3 | 50.7 | 52.1 | 53.6 | 55.7 | 58.4 | 61.7 | 64.9 | 68 | 70.7 | 72.4 | 73.2 | 72.8 | 71.3 | 68.8 | 65.3 | 61.1 | 56.9 | 52.9 | 49.6 | 47.7 |
60 | 30.4 | 39.3 | 44.1 | 46.3 | 47.6 | 48.9 | 50.4 | 52.4 | 54.9 | 57.9 | 60.8 | 63.5 | 65.8 | 67.3 | 67.9 | 67.3 | 65.9 | 63.5 | 60.3 | 56.5 | 52.7 | 49 | 45.6 | 43.2 |
50 | 29.2 | 37.2 | 41.4 | 43.4 | 44.6 | 45.8 | 47.2 | 49 | 51.4 | 54.1 | 56.7 | 59.1 | 61 | 62.2 | 62.5 | 61.9 | 60.4 | 58.2 | 55.3 | 51.9 | 48.5 | 45.1 | 41.7 | 38.7 |
40 | 27.9 | 35 | 38.7 | 40.4 | 41.5 | 42.6 | 44 | 45.7 | 47.9 | 50.3 | 52.6 | 54.6 | 56.2 | 57.1 | 57.1 | 56.4 | 54.9 | 52.9 | 50.3 | 47.3 | 44.3 | 41.2 | 37.8 | 34.2 |
30 | 26.7 | 32.9 | 36 | 37.5 | 38.4 | 39.5 | 40.8 | 42.4 | 44.4 | 46.6 | 48.5 | 50.2 | 51.4 | 51.9 | 51.8 | 50.9 | 49.5 | 47.6 | 45.3 | 42.7 | 40.1 | 37.3 | 33.8 | 29.7 |
20 | 25.5 | 30.7 | 33.3 | 34.5 | 35.3 | 36.3 | 37.5 | 39.1 | 40.9 | 42.8 | 44.4 | 45.8 | 46.6 | 46.8 | 46.4 | 45.4 | 44 | 42.3 | 40.3 | 38.1 | 35.9 | 33.3 | 29.9 | 25.3 |
10 | 24.3 | 28.6 | 30.7 | 31.6 | 32.3 | 33.2 | 34.3 | 35.7 | 37.4 | 39 | 40.3 | 41.3 | 41.8 | 41.7 | 41.1 | 39.9 | 38.5 | 37 | 35.3 | 33.5 | 31.7 | 29.4 | 26 | 20.8 |