The result can be determined by computation or measurement methods. ![]() All of these indicators may be defined in terms of A-weighted decibels (dBA, dB(A)). The main noise indicators for noise mapping are long-term averaged sound levels, determined over all the correspondent periods of a year. ![]() This map can be used for scientists, politicians or other interested parties. The term 'strategic' is very important in this definition, because the management of environmental noise must be made for the long-term. The main goals of the END are to make a diagnosis of noise pollution in Europe that can lead to noise management plans and acoustical planning. Strategic noise map shall mean a map designed for the global assessment of noise exposure in a given area due to different noise sources or for overall predictions for such an area."ĮU Member States are required to produce strategic noise maps in their main cities, near the main transport infrastructure and industrial sites. ![]() " noise indicator shall mean a physical scale for the description of environmental noise, which has a relationship with a harmful effect Although some previous approaches had been made, the main international agreement and definitions for noise mapping were born in relation to the Environmental noise directive of the European Parliament and Council (Directive 2002/49/EC of 25 June 2002, commonly referred to as the END).
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