Industrial Noise – Exposed Areas, 10pm to 6am (Ln Indicator)Bruit industriel - Zones exposées, de 22h à 6h (indicateur Ln)

Bruit industriel - Zones exposées, de 22h à 6h (indicateur Ln)Industrial Noise – Exposed Areas, 10pm to 6am (Ln Indicator)

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Dataset providing strategic noise mapping of industrial noise exposure between 10pm and 6am, based on the Ln indicator, for Type A noise maps within the Aix-Marseille-Provence metropolitan area. The data was produced by Impédance ingénierie on behalf of the Aix-Marseille-Provence Métropole. The associated map symbology is supplied as an attachment in QGIS format. The dataset supports noise impact assessment and urban planning related to industrial noise pollution at the local level.Cartographie de Bruit Stratégique Donnée produite par Impédance ingénierie pour le compte de la métropole Aix-Marseille Provence La symbologie associée à la carte du bruit est disponible dans la partie pièce jointe, au format QGIS. Bruit industriel selon l'indicateur Ln pour les cartes de type A...

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Trust score

How is this computed?

fair

Weighted across five axes. Tap a ring for what it measures.

Data schema (20 fields)

Filterable via the API (18)

idnom_donneecodeinseenom_communecodectcodecommdatemajsourceanneecodedeptautoriteidcourbetypesourceindicetypeisophonevalidedebst_area_shst_perimet

Click a field to see example values.

Fill	Field	Type	Description
100%	id	double	Unique identifier of the record.Unique identifier of the record.
100%	nom_donneeNom donnee	text	Name of the dataset or noise study.Name of the dataset or noise study.
100%	codeinsee	text	INSEE code of the municipality.INSEE code of the municipality.
99.8%	nom_communeCommune name	text	Name of the municipality.Name of the municipality.
100%	codect	text	Code identifying the territorial division (CT).Code identifying the territorial division (CT).
100%	codecomm	text	Municipality code used in the noise study.Municipality code used in the noise study.
100%	datemaj	text	Date the data was last updated.Date the data was last updated.
100%	source	text	Organization that produced the data.Organization that produced the data.
100%	annee	text	Year the noise mapping refers to.Year the noise mapping refers to.
100%	codedept	text	Department code.Department code.
—	autorite	text	Identifier (SIREN) of the responsible authority.Identifier (SIREN) of the responsible authority.
—	idcourbe	text	Identifier of the noise contour curve.Identifier of the noise contour curve.
—	typesource	text	Type of noise source category used in the mapping.Type of noise source category used in the mapping.
—	indicetype	text	Noise indicator type, here Ln (nighttime).Noise indicator type, here Ln (nighttime).
—	isophone	double	Noise level threshold in decibels for the contour.Noise level threshold in decibels for the contour.
—	validedeb	text	Start date of validity for the data.Start date of validity for the data.
—	geo_shapeShape	geo_shape	Geographic polygon of the noise exposure zone.Geographic polygon of the noise exposure zone.
—	geo_point_2dGeo Point	geo_point_2d	Geographic coordinates of the zone's centroid.Geographic coordinates of the zone's centroid.
—	st_area_shSt area sh	double	Area of the zone's shape.Area of the zone's shape.
—	st_perimetSt perimet	double	Perimeter length of the zone's shape.Perimeter length of the zone's shape.

Schema captured from opendatasoft 2 days ago.

Query the data

Pick columns and a sort, then fetch a live preview straight from the source. Choose an API-filterable column (marked ▾) under “Where” to pick from its list of values.

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Sample data (5 records)

Record 1id: 66673 · annee: 2021

{
  "id": 66673,
  "annee": "2021",
  "codect": "CT3",
  "source": "IMPEDANCE INGENIERIE",
  "datemaj": "11/06/2020",
  "autorite": "814 732 707",
  "codecomm": "132014",
  "codedept": "13",
  "idcourbe": "66673.00000000",
  "isophone": 70,
  "codeinsee": "13014",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            5.200586652725242,
            43.49339151114609
          ],
          [
            5.200565986249891,
            43.49337482968965
          ],
          [
            5.200546324423645,
            43.493377928847714
          ],
          [
            5.200545887129358,
            43.493392338454406
          ],
          [
            5.200567160499636,
            43.493405497419865
          ],
          [
            5.200587337560988,
            43.49340616799395
          ],
          [
            5.200586652725242,
            43.49339151114609
          ]
        ]
      ]
    },
    "properties": {}
  },
  "validedeb": "11/06/2021",
  "indicetype": "Ln",
  "nom_donnee": "Bruit industriel type A LN - 22h-6h (étude de bruit Impédance Ingénierie)",
  "st_area_sh": 8.22234999896,
  "st_perimet": 11.2500721468,
  "typesource": "A",
  "nom_commune": "Berre-l'Étang",
  "geo_point_2d": {
    "lat": 43.493391021167426,
    "lon": 5.200566515440017
  }
}

Record 2id: 69451 · annee: 2021

{
  "id": 69451,
  "annee": "2021",
  "codect": "CT1",
  "source": "IMPEDANCE INGENIERIE",
  "datemaj": "11/06/2020",
  "autorite": "814 732 707",
  "codecomm": "131203",
  "codedept": "13",
  "idcourbe": "69451.00000000",
  "isophone": 70,
  "codeinsee": "13203",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            5.370523632354038,
            43.31515631712805
          ],
          [
            5.370502065768435,
            43.315141400329026
          ],
          [
            5.370492043511894,
            43.31514944993518
          ],
          [
            5.370490630140325,
            43.31515704077769
          ],
          [
            5.370503226917957,
            43.315169634312475
          ],
          [
            5.370519314225165,
            43.315168201581834
          ],
          [
            5.370523632354038,
            43.31515631712805
          ]
        ]
      ]
    },
    "properties": {}
  },
  "validedeb": "11/06/2021",
  "indicetype": "Ln",
  "nom_donnee": "Bruit industriel type A LN - 22h-6h (étude de bruit Impédance Ingénierie)",
  "st_area_sh": 5.33415000512,
  "st_perimet": 8.88805585406,
  "typesource": "A",
  "nom_commune": "Marseille 3e  Arrondissement",
  "geo_point_2d": {
    "lat": 43.31515689640871,
    "lon": 5.370506562241969
  }
}

Record 3id: 16281 · annee: 2021

{
  "id": 16281,
  "annee": "2021",
  "codect": "CT3",
  "source": "IMPEDANCE INGENIERIE",
  "datemaj": "11/06/2020",
  "autorite": "814 732 707",
  "codecomm": "132037",
  "codedept": "13",
  "idcourbe": "16281.00000000",
  "isophone": 60,
  "codeinsee": "13037",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            5.208916401180525,
            43.566307969507
          ],
          [
            5.208869737451753,
            43.566288756815716
          ],
          [
            5.208851185970982,
            43.566295614948146
          ],
          [
            5.208848372434507,
            43.56630935363517
          ],
          [
            5.208872212016679,
            43.56635306325707
          ],
          [
            5.208896324067875,
            43.56632664993258
          ],
          [
            5.208916401180525,
            43.566307969507
          ]
        ]
      ]
    },
    "properties": {}
  },
  "validedeb": "11/06/2021",
  "indicetype": "Ln",
  "nom_donnee": "Bruit industriel type A LN - 22h-6h (étude de bruit Impédance Ingénierie)",
  "st_area_sh": 20.3617500034,
  "st_perimet": 18.9441405127,
  "typesource": "A",
  "nom_commune": "La Fare-les-Oliviers",
  "geo_point_2d": {
    "lat": 43.56631554794987,
    "lon": 5.208877291663267
  }
}

Record 4id: 32611 · annee: 2021

{
  "id": 32611,
  "annee": "2021",
  "codect": "CT3",
  "source": "IMPEDANCE INGENIERIE",
  "datemaj": "11/06/2020",
  "autorite": "814 732 707",
  "codecomm": "132051",
  "codedept": "13",
  "idcourbe": "32611.00000000",
  "isophone": 65,
  "codeinsee": "13051",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            5.199156165623522,
            43.580921522706646
          ],
          [
            5.199104710955723,
            43.580916444049095
          ],
          [
            5.199111334076708,
            43.58095357410463
          ],
          [
            5.199158561005397,
            43.580984031217994
          ],
          [
            5.199202631129337,
            43.58099673024287
          ],
          [
            5.199221193401806,
            43.58100292505525
          ],
          [
            5.199227757132356,
            43.58099973178131
          ],
          [
            5.199232447818127,
            43.58099612638992
          ],
          [
            5.199220345515005,
            43.58098079974034
          ],
          [
            5.199203382209635,
            43.58095170997895
          ],
          [
            5.199156165623522,
            43.580921522706646
          ]
        ]
      ]
    },
    "properties": {}
  },
  "validedeb": "11/06/2021",
  "indicetype": "Ln",
  "nom_donnee": "Bruit industriel type A LN - 22h-6h (étude de bruit Impédance Ingénierie)",
  "st_area_sh": 49.7622999881,
  "st_perimet": 30.6837513449,
  "typesource": "A",
  "nom_commune": "Lançon-Provence",
  "geo_point_2d": {
    "lat": 43.58095756104684,
    "lon": 5.199164614364287
  }
}

Record 5id: 25445 · annee: 2021

{
  "id": 25445,
  "annee": "2021",
  "codect": "CT5",
  "source": "IMPEDANCE INGENIERIE",
  "datemaj": "11/06/2020",
  "autorite": "814 732 707",
  "codecomm": "132039",
  "codedept": "13",
  "idcourbe": "25445.00000000",
  "isophone": 65,
  "codeinsee": "13039",
  "geo_shape": {
    "type": "Feature",
    "geometry": {
      "type": "Polygon",
      "coordinates": [
        [
          [
            4.848869449483606,
            43.45228216953047
          ],
          [
            4.848879666140611,
            43.45226183710039
          ],
          [
            4.848884542873387,
            43.45225599443369
          ],
          [
            4.848839008058903,
            43.4522228444733
          ],
          [
            4.84878734284151,
            43.452225705733774
          ],
          [
            4.848792504868898,
            43.45226332415078
          ],
          [
            4.848841427986331,
            43.45229812616481
          ],
          [
            4.848869449483606,
            43.45228216953047
          ]
        ],
        [
          [
            4.848846800321085,
            43.452261587904836
          ],
          [
            4.848846085594526,
            43.45226241002329
          ],
          [
            4.848844576051551,
            43.452265405500704
          ],
          [
            4.848840450762783,
            43.45226772567239
          ],
          [
            4.848833245973793,
            43.452262629079286
          ],
          [
            4.848832449431232,
            43.45225706318918
          ],
          [
            4.848840095146188,
            43.452256662771504
          ],
          [
            4.848846800321085,
            43.452261587904836
          ]
        ]
      ]
    },
    "properties": {}
  },
  "validedeb": "11/06/2021",
  "indicetype": "Ln",
  "nom_donnee": "Bruit industriel type A LN - 22h-6h (étude de bruit Impédance Ingénierie)",
  "st_area_sh": 41.201549994,
  "st_perimet": 28.9063375751,
  "typesource": "A",
  "nom_commune": "Fos-sur-Mer",
  "geo_point_2d": {
    "lat": 43.45225628089399,
    "lon": 4.848833310355058
  }
}

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-a-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-a-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

79k

79498

Last upstream update

7 months ago

2026-04-07

License

No license declared upstream.

○ Documentation○ Data dictionary○ Versioning

Source: opendatasoft

Machine-readable & source

JSON

Embed this badge in a README or wiki — it always shows the latest verification state and quality tier.