Facade points according to the EU Environmental Noise Directive

The data provided by this metadata record is not contained or displayed in the WMS “Noise Card”, but is provided as additional data. Facade points are used to calculate the number of persons affected. The facade punks are provided for the calculation of the number of persons affected according to the EU Environment Noise Directive.本元数据记录所提供的数据并未包含在WMS"噪声卡片（Noise Card）"中，亦未在该服务内展示，而是以附加数据的形式提供。建筑立面测点（facade points）用于计算受影响人群的数量。依据欧盟环境噪声指令（EU Environment Noise Directive）的相关规定，提供此类建筑立面测点数据，旨在核算受影响人数。