Map visualisation service (WMS) of the dataset: Lot of maps of Noise 2019 — Department of Pyrenees-Atlantiques
Description
The European Directive 2002/49/EC of 25 June 2002 on the assessment and management of environmental noise aims to assess the exposure to noise in the Member States in a harmonised manner. It defines them as data representations describing a sound situation according to a noise indicator, indicating exceedances of limit values, the number of people exposed. (Article 3 of the Decree of 24 March 2006 and Article 7 of the Decree of 4 April 2006). Noise cards have no prescriptive character. These are informational documents which are not enforceable at the legal level. As graphic elements, on the other hand, they can complement a local urban planning plan (PLU).
As part of an urban travel plan (UDP), maps can be used to establish reference states and target areas where better traffic management is needed. To quantify the level of noise emitted by an infrastructure during an average day, two indices are used, the Lden index and the Ln index, recommended for all modes of transport at European level:
— Lden: indicator representative of the average level over all 24 hours of the day,
— LN: representative indicator of the average noise level for the period 22:00-6:00. (average night equivalent noise)
Noise levels are evaluated using numerical models (computer software) integrating the main parameters that influence noise and its propagation (traffic data, terrain topology, meteorological data,...). The noise maps thus produced are then cross-referenced with the demographic data of the areas concerned in order to estimate the population exposed to noise pollution. The sound level indicated on the noise maps is derived from a calculation method that gives approximate values and often higher than reality (maximalists) in a noise zone considered critical. An “in situ” noise control can precisely determine the noise to which a construction and its occupants may be exposed.
The content and format of these maps meet the regulatory requirements of the European Directive 2002/49/EC on the management of noise in the environment.
Noise cards shall include, in accordance with the regulations:
• Sound level maps for a “reference situation” (so-called type a maps), showing equivalent noise-level curves in the territory. These are the layers
Agregation_N_BRUIT_ZBR_R_A_LD_S_064.shp
Agregation_N_BRUIT_ZBR_R_A_LN_S_064.shp
• Maps of areas affected by noise related to the noise classification of roadways in force (type b maps).
Agregation_N_BRUIT_ZBR_R_B_00_S_064.shp
• Exceedance maps, representing areas likely to contain buildings with a modelled sound level above regulatory thresholds (type c maps).
Agregation_N_BRUIT_ZBR_R_C_LD_S_064.shp
Agregation_N_BRUIT_ZBR_R_C_LN_S_064.shp
(There is also the layer of noise sector B on motorways A63 and A64 SECTOR_BR_B_AUTOROUTE.shp)
The roads concerned were selected in accordance with the Prefectural Decree approving strategic noise maps of the Land Transport Infrastructures with an annual traffic of more than 3 million vehicles in the department of Pyrénées-Atlantiques. (Prefectural decree of 12 October 2018 n°64-2018-10-12-001).
This decree lists the main road infrastructure of the department of the Atlantic Pyrenees:
— national motorways granted A63 and A64
— national N134
— departmental D2 D6 D9 D33 D37 D281 D309 D501 D635 D802 D810 D811 D817 D834 D911 D912 D918 D932 D936 D938 D943 D947
— several communal roads of the communes of Anglet, Bayonne, Biarritz, Billère, Bizanos, Gelos, Hendaye, Idron, Jurançon, Lescar, Lons, Oloron-Sainte-Marie, Pau, Saint-Jean-de-Luz
Resources
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file:///usr/verticles/WxsUrlservice |