Strategic noise map 2021 contours (dataset series)

Collection data set for strategic noise maps. The reference year of these dates is 2021. As provided for in Article 7 of RL 2002/49/EC, Member States shall communicate every 5 years the major roads, major railways, major airports and major agglomerations within their territory for which strategic noise maps and action plans are to be drawn up. The sound card shall indicate how much noise the environment is exposed to. The noise is expressed in the parameter Lden. The Lden level is a weighted annual average sound pressure level over the meal where evening and night levels weigh relatively more heavily, which corresponds to the observation that noise pollution is generally perceived as more nuisance in the evening and at night. European research therefore shows that Lden is a relatively good predictor of the extent to which local residents may be affected. These noise maps are updated every 5 years. From the strategic noise maps with reference year 2021, a new calculation method was used. This is a new joint European calculation method that is mandatory for all Member States from the mapping exercise with reference year 2021. As this calculation method differs from that used in previous mapping rounds, it is not appropriate to compare the results of reference year 2021 with previous editions (2006, 2011 and 2016). It cannot be ruled out that differences in calculated exposure are solely due to the application of this new calculation method and are not a result of increased or reduced exposure.