Strategic noise map - 2011 - Major airports - Lnight - contours

Strategic noise map of major airports. The reference year for these data is 2011. The noise map shows the annual average noise emissions around the airports of Brussels Airport, Ostend-Bruges, Antwerp-Deurne and Kortrijk-Wevelgem. The noise load is expressed in the parameter Lnight. The Lnight level is the average of the noise levels during the night (11 p.m. - 7 a.m.) and is one of the noise indicators that are representative of possible nocturnal sleep disturbance. This noise load map is updated every 5 years. The strategic noise maps with reference years 2006, 2011 and 2016 were calculated using an old calculation method. 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 round with reference year 2021. Because 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). After all, it cannot be ruled out that differences in calculated exposure are purely due to the application of this new calculation method and are not a consequence of increased or decreased exposure.