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Tree Preservation Orders

What is in this data?

The data available gives the location of Tree Preservation Orders issued within the Sedgemoor District area only.

The co-ordinates are for British National Grid [epsg:27700]

The data was extracted 27th July 2017.

What does each column mean?

For the main file(tpo.csv) contains TPO spatial data:

  • Id - Unique identifier for record in GIS layer (generated from RowId)
  • REFERENCE - Identifier for TPO record.
  • Obj_type - Type of spatial object. In the layer there are currently 300 Region objects and 1768 Point objects.
  • Obj_centroid_X - Easting for the centre of the object.
              (Please note, for a Region object this may fall outside of the actual spatial object)
  • Obj_centroid_Y - Northing for the centre of the object.
              (Please note, for a Region object this may fall outside of the actual spatial object)
  • Obj_npolygons - A Region object may be comprised of more than one polygon.
              (This is the number of polygons for the particular TPO record. If it is a Point object, the value will be 0)
  • Polygon1_nodes - The number of nodes that comprise the first polygon.
  • Polygon2_nodes - The number of nodes that comprise the second polygon. This is 0, if there is only one polygon.

The second file (tpo_polygon_nodes.csv) contains TPO spatial data (This only relates to TPO records in the main file which have Region objects. The file lists all the co-ordinates for all the nodes within a polygon. The co-ordinates for the first and last node will be the same):

  • Id - Link to record in tpo.csv extract
  • Polygon - The polygon identifier for a Region object. One TPO record has two polygons
  • Node - Node identifier
  • Node_X - Easting for Node
  • Node_Y - Northing for Node
How often is it published?We will publish this data annually.
Improving the dataMore regular updates.
Why we publish this type of dataTo assist with data use.

Our data is provided under the terms of the  Open Government Licence.

How to ask for more information

If you have queries with any of the information listed in the data, please contact us specifying what additional information you require.


Icon for csv tpo.csv [135.62KB]
Icon for csv tpo_polygon_nodes.csv [641.26KB]