Industrial Noise - Zones Where Limit Values Are Exceeded, 10pm to 6am (Ln Indicator)Bruit industriel - Zones où les valeurs limites sont dépassées, de 22h à 6h (indicateur Ln)

Bruit industriel - Zones où les valeurs limites sont dépassées, de 22h à 6h (indicateur Ln)Industrial Noise - Zones Where Limit Values Are Exceeded, 10pm to 6am (Ln Indicator)

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This dataset is part of the Strategic Noise Mapping produced by Impédance Ingénierie on behalf of the Aix-Marseille-Provence Metropolitan Area. It maps industrial noise using the Ln indicator, corresponding to type C maps, and identifies zones within the metropolitan area where regulatory limit values are exceeded during the night period from 10pm to 6am. The data results from acoustic modelling calculations. It is published by the Métropole Aix-Marseille-Provence and can be used for environmental noise assessment and urban planning purposes.Cartographie de Bruit Stratégique Donnée produite par Impédance ingénierie pour le compte de la métropole Aix-Marseille Provence Bruit industriel selon l'indicateur Ln pour les cartes de type C sur la Métropole Aix-Marseille Provence. Résultats de calculs des modélisations acoustiques . La carte...

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fair

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Data schema (21 fields)

Filterable via the API (19)

objectididnom_donneecodeinseenom_communecodectcodecommdatemajsourceanneecodedeptautoriteidcourbetypesourceindicetypeisophonevalidedebshape_areashape_length

Click a field to see example values.

Fill	Field	Type	Description
100%	objectidFID	int	Unique feature identifier (FID).Unique feature identifier (FID).
100%	id	double	Numeric identifier of the record.Numeric identifier of the record.
100%	nom_donneeNom de la donnée	text	Name of the noise mapping dataset.Name of the noise mapping dataset.
100%	codeinsee	text	INSEE code of the municipality.INSEE code of the municipality.
99.7%	nom_communeCommune name	text	Name of the municipality.Name of the municipality.
100%	codect	text	Territorial council code.Territorial council code.
100%	codecommCode commune DGFIP	text	DGFIP municipality code.DGFIP municipality code.
100%	datemajDate de mise à jour	text	Date the data was last updated.Date the data was last updated.
100%	sourceProducteur	text	Producer or organization that generated the data.Producer or organization that generated the data.
100%	anneeAnnée	text	Year the data refers to.Year the data refers to.
—	codedeptDépartement	text	Department code.Department code.
—	autoriteAutorité	text	Identifier (SIREN) of the responsible authority.Identifier (SIREN) of the responsible authority.
—	idcourbeCode courbe	text	Identifier of the noise contour curve.Identifier of the noise contour curve.
—	typesourceType de source	text	Type of noise source, e.g. map category C.Type of noise source, e.g. map category C.
—	indicetypeType d’indice	text	Type of noise indicator, e.g. Ln for night noise.Type of noise indicator, e.g. Ln for night noise.
—	isophoneIsophone (dB)	double	Noise level threshold of the contour, in decibels.Noise level threshold of the contour, in decibels.
—	validedebDébut de validité	text	Start date of the data's validity.Start date of the data's validity.
—	geo_shapeShape	geo_shape	Geographic polygon geometry of the noise zone.Geographic polygon geometry of the noise zone.
—	geo_point_2dCoordinates	geo_point_2d	Geographic center point (latitude/longitude) of the zone.Geographic center point (latitude/longitude) of the zone.
—	shape_areast_area(shape)	double	Area of the polygon shape.Area of the polygon shape.
100%	shape_lengthst_perimeter(shape)	double	Perimeter length of the polygon shape.Perimeter length of the polygon shape.

Schema captured from opendatasoft 2 days ago.

Query the data

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Sample data (5 records)

Record 1id: 5535 · annee: 2021

{
  "id": 5535,
  "annee": "2021",
  "codect": "CT2",
  "source": "IMPEDANCE INGENIERIE",
  "datemaj": "11/06/2020",
  "autorite": "814 732 707",
  "codecomm": "132041",
  "codedept": "13",
  "idcourbe": "5535",
  "isophone": 60,
  "objectid": 5535,
  "codeinsee": "13041",
  "geo_shape": "[large value omitted]",
  "validedeb": "11/06/2021",
  "indicetype": "Ln",
  "nom_donnee": "Bruit industriel type C LN - 22h-6h (étude de bruit Impédance Ingénierie)",
  "shape_area": 1045.9821500021017,
  "typesource": "C",
  "nom_commune": "Gardanne",
  "geo_point_2d": {
    "lat": 43.46778327658735,
    "lon": 5.480846246760847
  },
  "shape_length": 316.5389868035314
}

Record 2id: 6986 · annee: 2021

{
  "id": 6986,
  "annee": "2021",
  "codect": "CT2",
  "source": "IMPEDANCE INGENIERIE",
  "datemaj": "11/06/2020",
  "autorite": "814 732 707",
  "codecomm": "132048",
  "codedept": "13",
  "idcourbe": "6986",
  "isophone": 60,
  "objectid": 6986,
  "codeinsee": "13048",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            5.632779377526458,
            43.66011601782618
          ],
          [
            5.632776949378892,
            43.660106353374054
          ],
          [
            5.632775219557476,
            43.66011458800116
          ],
          [
            5.6327754136660575,
            43.66011611381245
          ],
          [
            5.632777631099931,
            43.66012119183214
          ],
          [
            5.6327793156305335,
            43.660117369776444
          ],
          [
            5.632779377526458,
            43.66011601782618
          ]
        ]
      ]
    },
    "properties": {}
  },
  "validedeb": "11/06/2021",
  "indicetype": "Ln",
  "nom_donnee": "Bruit industriel type C LN - 22h-6h (étude de bruit Impédance Ingénierie)",
  "shape_area": 0.29214999679327014,
  "typesource": "C",
  "nom_commune": "Jouques",
  "geo_point_2d": {
    "lat": 43.66011450939714,
    "lon": 5.632777275509394
  },
  "shape_length": 3.3761697599839775
}

Record 3id: 6513 · annee: 2021

{
  "id": 6513,
  "annee": "2021",
  "codect": "CT2",
  "source": "IMPEDANCE INGENIERIE",
  "datemaj": "11/06/2020",
  "autorite": "814 732 707",
  "codecomm": "132087",
  "codedept": "13",
  "idcourbe": "6513",
  "isophone": 60,
  "objectid": 6513,
  "codeinsee": "13087",
  "geo_shape": "[large value omitted]",
  "validedeb": "11/06/2021",
  "indicetype": "Ln",
  "nom_donnee": "Bruit industriel type C LN - 22h-6h (étude de bruit Impédance Ingénierie)",
  "shape_area": 849.0490000305366,
  "typesource": "C",
  "nom_commune": "Rousset",
  "geo_point_2d": {
    "lat": 43.470716011746504,
    "lon": 5.607540269613716
  },
  "shape_length": 303.2665351029639
}

Record 4id: 7110 · annee: 2021

{
  "id": 7110,
  "annee": "2021",
  "codect": "CT2",
  "source": "IMPEDANCE INGENIERIE",
  "datemaj": "11/06/2020",
  "autorite": "814 732 707",
  "codecomm": "132048",
  "codedept": "13",
  "idcourbe": "7110",
  "isophone": 60,
  "objectid": 7110,
  "codeinsee": "13048",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            5.639253599729861,
            43.66475758358493
          ],
          [
            5.639224731087829,
            43.66475549336248
          ],
          [
            5.639226806976998,
            43.664776330079754
          ],
          [
            5.639255273154579,
            43.66479391533886
          ],
          [
            5.639285541781321,
            43.66479678184711
          ],
          [
            5.6392815621005274,
            43.6647750010046
          ],
          [
            5.639253599729861,
            43.66475758358493
          ]
        ]
      ]
    },
    "properties": {}
  },
  "validedeb": "11/06/2021",
  "indicetype": "Ln",
  "nom_donnee": "Bruit industriel type C LN - 22h-6h (étude de bruit Impédance Ingénierie)",
  "shape_area": 14.510099994053693,
  "typesource": "C",
  "nom_commune": "Jouques",
  "geo_point_2d": {
    "lat": 43.664775971588796,
    "lon": 5.6392546973724595
  },
  "shape_length": 15.555056917253783
}

Record 5id: 4528 · annee: 2021

{
  "id": 4528,
  "annee": "2021",
  "codect": "CT2",
  "source": "IMPEDANCE INGENIERIE",
  "datemaj": "11/06/2020",
  "autorite": "814 732 707",
  "codecomm": "132001",
  "codedept": "13",
  "idcourbe": "4528",
  "isophone": 60,
  "objectid": 4528,
  "codeinsee": "13001",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            5.293503279369189,
            43.466849130614065
          ],
          [
            5.293465045040463,
            43.466816907540256
          ],
          [
            5.293431547621946,
            43.466825986914344
          ],
          [
            5.293415985397113,
            43.46685097782428
          ],
          [
            5.293467434132253,
            43.46687680088982
          ],
          [
            5.2935011755098005,
            43.466873836741264
          ],
          [
            5.293503279369189,
            43.466849130614065
          ]
        ]
      ]
    },
    "properties": {}
  },
  "validedeb": "11/06/2021",
  "indicetype": "Ln",
  "nom_donnee": "Bruit industriel type C LN - 22h-6h (étude de bruit Impédance Ingénierie)",
  "shape_area": 30.396350002249328,
  "typesource": "C",
  "nom_commune": "Aix-en-Provence",
  "geo_point_2d": {
    "lat": 43.46684853109338,
    "lon": 5.293462826019284
  },
  "shape_length": 21.238529478189157
}

Live sample captured at profiling time — values may have changed upstream.

Verification Status

Using the API

Configuration

Base URL: https://data.ampmetropole.fr/api/explore/v2.1/catalog/datasets/bruit-industriel-type-c-ln-22h-6h-etude-de-bruit-impedance-ingenierie

License

Licence Ouverte 2.0 (France / Etalab)Open

✓ Redistributable
✓ Attribution required

Query examples

curl -s 'https://data.ampmetropole.fr/api/explore/v2.1/catalog/datasets/bruit-industriel-type-c-ln-22h-6h-etude-de-bruit-impedance-ingenierie/records?limit=20' -H 'Accept: application/json'

First 20 records of the dataset as JSON.

Uses the Opendatasoft Explore v2.1 syntax — supports select, where, group_by and order_by.

Full API documentation ↗

Rate limits

5 000 req/day

per ipmeasured

observed 2 days ago

Dataset

Volume & freshness

Records

7.7k

7655

Last upstream update

7 months ago

2026-04-07

License

No license declared upstream.

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Source: opendatasoft

Machine-readable & source

JSON

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