TABLE I.
Acoustic and temporal characteristics of the individual trains. Measured at the pillow.
| Train | LAEq,pb (dB) | LAFmax,pb (dB) | t > 35 dB (s) | t10%-90% (s) | tvib start (s) |
|---|---|---|---|---|---|
| 1 | 44.0 | 48.4 | 11.5 | 8.9 | 7.7 |
| 2 | 42.7 | 47.2 | 46.2 | 9.8 | 7.3 |
| 3 | 44.5 | 49.8 | 23.7 | 8.4 | 7.8 |
| 4 | 45.6 | 49.8 | 29.2 | 7.9 | 2.9 |
| 5 | 42.4 | 47.2 | 56.9 | 9.2 | 6.3 |
LAEq,pb Equivalent A-weighted noise level for the train pass-by. LAFmax,pb Maximum A-weighted noise level for the train pass-by. t > 35 dB Time that the noise level exceeded 35 dB, here used as the train duration. t10%−90% Time for the noise level to progress from 10% of the maximum to 90% of the maximum, here used as the noise rise time. tvib start Time between noise onset and vibration onset.