Buildings
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https://www.cambridgema.gov/GIS/gisdatadictionary/Basemap/BASEMAP_Buildings
Description
City of Cambridge, MA, GIS basemap development project encompasses the land area of City of Cambridge with a 200-foot fringe surrounding the area and Charles River shoreline towards Boston. The basemap data was developed at 1" = 40' mapping scale using digital photogrammetric techniques. Planimetric features; both man-made and natural features like vegetation, rivers have been depicted. These features are important to all GIS/mapping applications and publication. A set of data layers such as Buildings, Roads, Rivers, Utility structures, 1 ft interval contours are developed and represented in the geodatabase. The features are labeled and coded in order to represent specific feature class for thematic representation and topology between the features is maintained for an accurate representation at the 1:40 mapping scale for both publication and analysis. The basemap data has been developed using procedures designed to produce data to the National Standard for Spatial Data Accuracy (NSSDA) and is intended for use at 1" = 40 ' mapping scale. Where applicable, the vertical datum is NAVD1988.
About Edit Dates
This data is automatically updated on a set schedule. The Socrata edit date may not reflect the actual edit dates in the data. For more details please see the update date on the full metadata page or view the edit date within the data rows.
Columns
| Name | Socrata field name | Column name in sgr mount | Data type | Description |
|---|---|---|---|---|
| Roof Elevation - sea level | elev_sl | elev_sl | Number | Elevation of roofline edge above sea level (NAVD88) |
| Top Elevation - sea level | top_sl | top_sl | Number | Elevation of highest point above sea level (NAVD88) |
| Geometry | the_geom | the_geom | MultiPolygon | Polygon layer geometry. The latitude and longitude data for the underlying map shapes. |
| Top Elevation - ground level | top_gl | top_gl | Number | Elevation of highest point above ground level (NAVD88) |
| Type | type | type | Text | Type of building (building, outbuilding, ruin) |
| Roof Elevation - ground level | elev_gl | elev_gl | Number | Elevation of roofline edge above ground level (NAVD88) |
| Building ID | bldgid | bldgid | Text | Unique building ID in master address block |
| Base Elevation | base_elev | base_elev | Number | Elevation of structure (NAVD88) |