[Talk-GB] UPRN Locations Map

Peter Neale nealepb at yahoo.co.uk
Fri Jul 3 08:15:42 UTC 2020


Hi Nick,
Thanks for that.
I regret that my VBA and Python are about as good as my Swahili and Martian.  (i.e. NOT)
Many years ago, I did a bit (sic) of coding in Basic, Fortran and Algol (look them up in the history books) and I used Prolog for my AI project in 1984, but since then, I've been gradually relegated to management.
However, I am sure that there are others in this community, who will be much better placed than I am to use the code that you  have so kindly provided.
Regards,Peter


    On Thursday, 2 July 2020, 23:19:06 BST, Nick <nick at foresters.org> wrote:  
 
  
Hi Peter
 
re: "I am still not clear how best to use the data available" - I have written a simple bit of VBA that enables address data to be retrieved for a given UPRN (I attach the VBA used in a form for Excel) - this only works for Scotland but may be available elsewhere. Using the concept you can use Python (a friend has done some preliminary work) or similar. This is not elegant but is perhaps a first step in enabling a whole lot of development?
 
 
Cheers
 
Nick
 

 
 On 02/07/2020 18:38, Peter Neale via Talk-GB wrote:
  
 
  Hi Robert, 
  Many thanks for producing that map. 
  I was able to look at my street and see a blue pin in each of the building outlines that I had mapped from aerial imagery, so that gave me a warm, smug feeling :) 
  I too noticed some not-yet-there properties in a nearby development that had UPRNs assigned - Not a problem really (IMHO).  There is also one allocated to a pond near me; I didn't know that was "addressable"!
  
  However, I am still not clear how best to use the data available, if you can't use it to look up the address of the property.  Similarly, I am not sure how a data consumer could use the data, if we laboriously edited every property in OSM to include a "ref:GB:UPRN=" tag (or similar; other tags are available.....). 
  Sorry not to be able to contribute something more useful... :( 
    Regards, Peter 
     
  
      On Thursday, 2 July 2020, 17:40:51 BST, Robert Whittaker (OSM lists) <robert.whittaker+osm at gmail.com> wrote:  
  
   I'm not completely sure if/how we can best make use of the new OS
  OpenData (UPRNs, USRNs and related links) in OpenStreetMap, but as a
  first step I've set up a quick slippy map with the UPRN locations
  shown:
  
  https://osm.mathmos.net/addresses/uprn/ (zoom in to level 16 to show the data)
  
  The UPRN dataset literally just contains the UPRN number and its
  coordinates (both OS National Grid and WGS lat/lon). There are some
  additional linking datasets that link these ids to other ids (e.g.
  USRNs, TOIDs). But no address information is available directly. (You
  may be able to get street names by matching to OS Open Roads via TOIDs
  though. Coupled with Code-Point Open, you might be able to assign
  quite a few postcodes in cases where there's only one unit for a whole
  street.)
  
  The UPRN data has already helped me find a mapping error I made
  locally though -- it looks like I'd accidentally missed drawing a
  house outline from aerial imagery, and also classified a large garage
  a few doors down as a house. The two errors cancelled out when the
  houses were numbered sequentially, so I didn't notice until now. Today
  though I spotted a UPRN marker over some blank space on the map, and
  no marker over the mapped house that's probably a garage.
  
  Now a few initial thoughts on the data that I've explored so far:
  
  I believe that the UPRNs are assigned by local authorities, so
  conventions may vary from place to place. I don't know who actually
  assigns the coordinates (authority or OS). Looking at those for rows
  of houses around me, they don't seem to have been automatically given
  coordinates from the house footprint, it looks more like someone
  manually clicking on a map.
  
  The UPRN dataset should include all addressable properties. It is also
  ahead of reality in some places, as it includes locations for houses
  on a new development near me that have yet to be built yet. For blocks
  of apartments/flats, the UPRN nodes may all have the same coordinates
  or may be displaced from each other, possibly in an artificial manner.
  
  Other objects also appear to have UPRNs. Likely things I've noticed so
  far include: car parks, post boxes, telephone boxes (even after
  they've been removed), electricity sub-stations, roads and recorded
  footpaths (the UPRN locations seem to be at one end of the street, so
  usually lie at a junction), recreation grounds / play areas,
  floodlight poles (around sports pitches), and allotments. There's no
  information about the object type in the UPRN data unfortunately.
  
  Anyway, I hope some of this is useful / interesting. I hope to be on
  the OSMUK call on Saturday to discuss things further. Best wishes,
  
  Robert.
  
  -- 
  Robert Whittaker
  https://osm.mathmos.net/
  
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