Simple download service (Atom) of the dataset: Noise maps on motorways: Zoning with sound level (day, evening, night) > 62 decibels in the Department of Landes

European Directive 2002-49 of 25 June 2002 on the assessment and management of noise in the environment lays down the framework for noise control policy.

The data were produced in response to Decree No. 2006-361 of 24 March 2006 on the preparation of noise maps and environmental noise prevention plans.

It states that noise maps and environmental noise prevention plans are drawn up:
(1) For each road and motorway infrastructure with an annual traffic of more than 3 million vehicles;
(2) For each railway infrastructure with an annual traffic exceeding 30,000 train crossings;
(3) For agglomerations with more than 100,000 inhabitants whose list is annexed to the decree.

Noise zones were developed in 2008 in the Department of Landes. Four families of noise maps are the initial diagnosis according to four harmonised noise level indicators: Lden(level day evening night), Ln (level night), Lden above 68 dB(A) and Ln above 62 dB(A)

Axes concerned in 2008:
— motorway network: A63 A64,
— national network: RN10,
— departmental network: RD29 RD129 RD524 RD810 RD824 RD932E RD947,
— Dax road network

Reading these maps requires some precautions detailed below.

2002年6月25日颁布的欧盟第2002/49号指令（European Directive 2002/49），围绕环境噪声的评估与管理工作，确立了噪声管控政策的整体框架。

本数据集系为响应2006年3月24日发布的第2006-361号法令而编制，该法令要求开展噪声地图与环境噪声防治规划的编制工作。

该法令明确规定，需编制噪声地图与环境噪声防治规划的场景包括：
(1) 年度车流量超过300万辆的所有道路及高速公路基础设施；
(2) 年度列车通行次数超过3万次的所有铁路基础设施；
(3) 人口超过10万的聚居区，其具体名录已作为附件附于本法令之中。

2008年，朗德省（Department of Landes）启动了噪声区划工作。本次初始诊断基于四项统一的噪声水平指标，生成了四类噪声地图：Lden（昼间-晚间-夜间等效声级，level day evening night）、Ln（夜间等效声级，level night）、高于68 dB(A)的Lden值，以及高于62 dB(A)的Ln值。

2008年涉及的噪声管控轴线包括：
— 高速公路网：A63、A64；
— 国道网：RN10；
— 省道网：RD29、RD129、RD524、RD810、RD824、RD932E、RD947；
— 达克斯市道路网

解读此类噪声地图需遵循下文详述的若干注意事项。