Map Viewing Service (WMS) of the dataset: Sound rating 2020 — high traffic lanes outside Toulouse-Métropole 31

Prefectural decree to review the sound classification of land transport infrastructure. The 2014 Order is repealed. The assessment and management of environmental noise in particular of land transport infrastructure is regulated in the Environmental Code in Articles L571-10 and R 571-32 to R.571-43 relating to the classification of tracks. The Order gives, for each of the sections of infrastructure concerned, classification in one of the five categories defined in the amended Ministerial Order of 30 May 1996, the width of the sectors affected by noise on both sides of those sections and the type of fabric. The layers of this folder are the surface materialisation of these areas affected by noise. According to Decree No. 95-21 of 9 January 1995, buildings to be constructed so-called sensitive (house, educational, health, care and social institution) in areas affected by noise must have a minimum acoustic isolation against external noise, as determined in accordance with the Ministerial Order of 30 May 1996 as amended.关于复核陆路交通基础设施声学分类的省政令（Prefectural decree）。2014年发布的相关命令予以废止。 陆路交通基础设施领域环境噪声的评估与管理，由《环境法典》（Environmental Code）中涉及线路分类的L571-10条以及R.571-32至R.571-43条予以规范。 本政令为每条相关基础设施路段明确三项内容：其一为按照1996年5月30日修订后的部长令（Ministerial Order）所定义的五类标准完成声学分类；其二为该路段两侧受噪声影响区域的宽度；其三为相关设施的面料类型（原文为type of fabric）。 本数据集文件夹内的图层，即为上述受噪声影响区域的地表具象化表现。 根据1995年1月9日发布的第95-21号政令，在受噪声影响区域内建设的所谓"敏感建筑"（住宅、教育机构、医疗卫生机构、养老及社会服务机构等），必须依照1996年5月30日修订后的部长令所确定的标准，达到抵御外部噪声的最低隔声要求。