Airborne Noise - Zones Where Limit Values Are Exceeded, over 24h (Lden Indicator)Bruit aérien - Zones où les valeurs limites sont dépassées, sur 24h (indicateur Lden)
Bruit aérien - Zones où les valeurs limites sont dépassées, sur 24h (indicateur Lden)Airborne Noise - Zones Where Limit Values Are Exceeded, over 24h (Lden Indicator)
This API provides data on airborne noise for type C maps across the Aix-Marseille-Provence Metropolis, based on the Lden indicator (Level day-evening-night), a weighted average noise level measured over a 24-hour period. Type C maps specifically identify zones where regulatory noise limit values are exceeded. The dataset is published by Métropole Aix-Marseille-Provence and results from a noise study conducted by Impédance Ingénierie. It is freely accessible without authentication and covers the local metropolitan area, supporting noise pollution assessment and urban planning within the region.Bruit aérien selon l'indicateur Lden pour les cartes de type C sur la Métropole Aix-Marseille Provence. La carte de type C localise les zones où les valeurs limites sont dépassées. L’indicateur Lden (pour Level day-evening-night) représente le niveau de bruit moyen pondéré au cours de la journée...
Trust score
How is this computed?Weighted across five axes. Tap a ring for what it measures.
Data schema (18 fields)
Click a field to see example values.
| Fill | Field | Type | Description |
|---|---|---|---|
| 100% | nom_donneeNom de la donnée | text | Name of the dataset/data item.Name of the dataset/data item. |
| 100% | codeinsee | text | INSEE code identifying the municipality.INSEE code identifying the municipality. |
| 100% | codect | text | Code identifying the noise contour/zone (CT).Code identifying the noise contour/zone (CT). |
| 100% | codecommCode commune DGFIP | int | DGFIP municipality code.DGFIP municipality code. |
| 100% | datemajDate de mise à jour | text | Date the record was last updated.Date the record was last updated. |
| 100% | sourceProducteur | text | Organization or company producing the data.Organization or company producing the data. |
| 100% | anneeAnnée | text | Year the data refers to.Year the data refers to. |
| 100% | codedeptDépartement | text | Department code where the area is located.Department code where the area is located. |
| 100% | autoriteAutorité | text | Identifier of the responsible authority (e.g. SIREN number).Identifier of the responsible authority (e.g. SIREN number). |
| 100% | idcourbeCode courbe | double | Identifier of the noise contour line.Identifier of the noise contour line. |
| — | typesourceType de source | text | Type of noise map source (e.g. type C).Type of noise map source (e.g. type C). |
| — | indicetypeType d’indice | text | Type of noise indicator used.Type of noise indicator used. |
| — | isophoneIsophone (dB) | double | Noise level threshold of the contour, in decibels.Noise level threshold of the contour, in decibels. |
| — | validedebDate de début de validité | text | Start date of validity for the data.Start date of validity for the data. |
| — | shape_areast_area(shape) | double | Area of the geographic shape.Area of the geographic shape. |
| — | shape_lengthst_perimeter(shape) | double | Perimeter length of the geographic shape.Perimeter length of the geographic shape. |
| — | 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 centroid coordinates (latitude, longitude) of the zone.Geographic centroid coordinates (latitude, longitude) of the zone. |
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.
Sample data (2 records)
Record 1annee: 2020 · codect: CT1
{
"annee": "2020",
"codect": "CT1",
"source": "IMPEDANCE INGENIERIE",
"datemaj": "12/10/2020",
"autorite": "814 732 707",
"codecomm": 0,
"codedept": "13",
"idcourbe": 1,
"isophone": 55,
"codeinsee": "Null",
"geo_shape": "[large value omitted]",
"validedeb": "12/10/2020",
"indicetype": "Ln",
"nom_donnee": "Bruit aérien selon l'indicateur Lden pour les cartes de type C",
"shape_area": 34049653.55975687,
"typesource": "C",
"geo_point_2d": {
"lat": 43.44098058813164,
"lon": 5.210281082568403
},
"shape_length": 49073.36341520661
}Record 2annee: 2020 · codect: CT2
{
"annee": "2020",
"codect": "CT2",
"source": "IMPEDANCE INGENIERIE",
"datemaj": "12/10/2020",
"autorite": "814 732 707",
"codecomm": 132001,
"codedept": "13",
"idcourbe": 2,
"isophone": 55,
"codeinsee": "13001",
"geo_shape": "[large value omitted]",
"validedeb": "12/10/2020",
"indicetype": "Ln",
"nom_donnee": "Bruit aérien selon l'indicateur Lden pour les cartes de type C",
"shape_area": 4072872.943280771,
"typesource": "C",
"geo_point_2d": {
"lat": 43.50670875665285,
"lon": 5.365934608611109
},
"shape_length": 9985.402406280085
}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-aerien-type-c-lden-sur-24h-etude-de-bruit-impedance-ingenierie
License
- ✓ Redistributable
- ✓ Attribution required
Query examples
curl -s 'https://data.ampmetropole.fr/api/explore/v2.1/catalog/datasets/bruit-aerien-type-c-lden-sur-24h-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.
Rate limits
Dataset
Volume & freshness
License
No license declared upstream.
Source: opendatasoft
Machine-readable & source
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