Canton within the meaning of INSEE in Loiret

The canton is a territorial subdivision of the borough. C' is the electoral district in which a general councillor is elected. The cantons were created, like the departments, by the Act of 22 December 1789. In most cases, the cantons encompass several municipalities. But the cantons do not always respect the municipal boundaries: the most populous municipalities belong to several cantons. A canton belongs to one and only one district. Layer different from that of the pseudo-cantons of the Carto BD layer #58 N_CANTON_BDC_ddd) because the latter contains the canton of attachment of the municipalities (finder definition to be provided) __Origin__ The noise levels emitted by a given infrastructure during an average day are evaluated using numerical models producing isophone curves translated into noise zones, according to the; index recommended for all modes of transport at European level, namely the Lden index and l' index Ln.The isophone curves, described by the resource N_BRUIT_ISOPHONE_L thus serve to delimit the external borders and, where appropriate, internal noise zones by range of #x27; indices. __Partner organisations__ DDT Loiret __Links annexes__ * [XML metadata view](http://ogc.geo-ide.developpement-durable.gouv.fr/csw/all-dataset?REQUEST=GetRecordById&SERVICE=CSW&VERSION=2.0.2&RESULTTYPE=results&elementSetName=full&TYPENAMES=gmd:MD_Metadata&OUTPUTSCHEMA=http://www.isotc211.org/2005/gmd&ID=fr-120066022-jdd-1fec4c46-db4e-41f1-a9fa-3642daa2ec07) * [COVADIS data standard: Table describing Noise Areas of (to be completed)(http://geostandards.developpement-durable.gouv.fr/afficherPageStandard.do?jeu=N_BRUIT_ZBR_INFRA_S) [See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/d63705dd3694b1f67b6f5f15452fc3cf979d5f9f)