2017 Metro Noise Report Area 18
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This table provides data from the noise survey conducted in the year 2017 for the metropolitan area of Alue 18. The data includes information on the date of extraction, row numbers, an identifier, noise levels (low and high values), data analyst's name, update date, geometry in GeoJSON and Geotext formats, geometry type, centroid coordinates, and the full geometry. The table is sourced from the website of Helsingin kaupunkiympariston toimiala, which is the Urban Environment Division of the City of Helsinki in Finland.
Field Descriptions
| Name |
Data type |
Description |
| _extract_date | date | The date when the data was extracted. |
|---|
| _row_number | long | The unique identifier for each row. |
|---|
| id | int | The unique identifier for each entry. |
|---|
| db_lo | int | The lower value of the range. |
|---|
| db_hi | int | The higher value of the range. |
|---|
| datanomist | string | The name of the data analyst. |
|---|
| paivitetty | string | The date when the data was last updated. |
|---|
| geom_geojson | string | The geometry in GeoJSON format. |
|---|
| geom_geotext | string | The geometry information in plain text format. |
|---|
| geom_type | string | The type of geometry. |
|---|
| geom_centroid | string | The centroid of the geometry. |
|---|
| geom_center_x | double | The x-coordinate of the center of the geometry. |
|---|
| geom_center_y | double | The y-coordinate of the center of the geometry. |
|---|
| geom | binary | The spatial geometry information. |
|---|
