2012 Noise Analysis on Road Network in Area 09
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This table contains data from the 'Helsinki City Environment Department' website which originates from Finland (ISO country code: 'fi'). The table 'avoindatameluselvitys_2012_alue_09_maantiet_l_den__meluselvitys_2012_alue_09_maantiet_l_denpolygon' provides information related to noise surveys conducted in 2012. The table consists of several columns that store various attributes such as the date of data extraction, the row number, unique identifier, noise levels range, data source, last updated date, geometric representation in GeoJSON and GeoText formats, geometry type, centroid coordinates, and the full geometry. This data can be utilized in data analytics to analyze noise pollution levels in different areas, identify areas with high noise levels, perform spatial analyses by examining geometric representations, and monitor changes or trends in noise levels over time.
Field Descriptions
| Name |
Data type |
Description |
| _extract_date | date | The date when the data is extracted from the source. |
|---|
| _row_number | long | The row number of the record in the table. |
|---|
| id | int | The unique identifier for each record. |
|---|
| db_lo | int | The lower bound of the database value. |
|---|
| db_hi | int | The upper bound of the database value. |
|---|
| datanomist | string | The name of the data analyst. |
|---|
| paivitetty | string | The date when the record is last updated. |
|---|
| geom_geojson | string | The geometry data in GeoJSON format. |
|---|
| geom_geotext | string | The geometry data in Geotext format. |
|---|
| geom_type | string | The type of geometry. |
|---|
| geom_centroid | string | The centroid point of the geometry. |
|---|
| geom_center_x | double | The x-coordinate of the center point of the geometry. |
|---|
| geom_center_y | double | The y-coordinate of the center point of the geometry. |
|---|
| geom | binary | The geometry data. |
|---|
