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A noise map is a graphic representation of the sound level distribution existing in a given region, for a defined period. == Directive 2002/49/EC == Although some previous approaches had been made, the main international agreement, definitions, and basis 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'), where we can find the following definitions: environmental noise’'' shall mean unwanted or harmful outdoor sound created by human activities, including noise emitted by means of transport, road traffic, rail traffic, air traffic, and from sites of industrial activity. noise indicator’'' shall mean a physical scale for the description of environmental noise, which has a relationship with a harmful effect; - 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; EU Member States are required to produce strategic noise maps in their main cities, near the main transport infrastructures and near industrial sites. The main goals of the END are to make a diagnosis of noise pollution in Europe that can lead to action plans, and a noise management that can be implemented in terms of action plans and acoustical planning. The term 'strategic' is very important in this definition, because the management of environmental noise must be made for the long-term in a full area. Using a simile, we should not worry about the weather, but we must care about the global warming. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「noise map」の詳細全文を読む スポンサード リンク
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