Research Article
Definition of an On-Board Comfort Index (Rail) for the Railway Transport
Table 1
Preliminary sample survey results to detect the perceived noise level.
| Leq () [dB] | Noise perceived | 1 | 2 | 3 | 4 | 5 | Number | % | Number | % | Number | % | Number | % | Number | % |
| 65 | 247 | 98.8 | 2 | 0.8 | 1 | 0.4 | 0 | 0.0 | 0 | 0.0 | 70 | 241 | 96.4 | 6 | 2.4 | 3 | 1.2 | 0 | 0.0 | 0 | 0.0 | 75 | 32 | 12.8 | 164 | 65.6 | 21 | 8.4 | 33 | 13.2 | 0 | 0.0 | 80 | 7 | 2.8 | 41 | 16.4 | 135 | 54.0 | 46 | 18.4 | 21 | 8.4 | 85 | 0 | 0.0 | 0 | 0.0 | 2 | 0.8 | 3 | 1.2 | 245 | 98.0 | 90 | 0 | 0.0 | 0 | 0.0 | 1 | 0.4 | 3 | 1.2 | 246 | 98.4 | 95 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 250 | 100.0 | 100 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 1 | 0.4 | 249 | 99.6 |
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