Figure 4: Percentage of highly annoyed by rail traffic noise in the past 12 months as a function of Lden compared to the European Union (EU) exposure-response relationship for railway noise.[2],[4] The dashed line completes the curve according to the EU formula to the noise levels calculated in the current study
![Figure 4: Percentage of highly annoyed by rail traffic noise in the past 12 months as a function of <i>L</i><sub>den</sub> compared to the European Union (EU) exposure-response relationship for railway noise.<sup>[2],[4]</sup> The dashed line completes the curve according to the EU formula to the noise levels calculated in the current study](articles/2014/16/73/images/NoiseHealth_2014_16_73_388_144417_f8.jpg)