[Talk-GB] UPRN Locations Map

[SK53]

The new Leicester Coronavirus Regulations
<http://www.legislation.gov.uk/uksi/2020/685/pdfs/uksi_20200685_en.pdf>
provide some interesting test data, ostensibly under a Open Government
Licence, of 24 pages of postcodes and what are obviously individual
properties where postcodes are split by the boundary captured by querying
UPRNs (telephone & post boxes are a useful clue). For instance Welford Road
in Wigston (on p. 34) corresponds to this area
<https://osm.mathmos.net/addresses/uprn/#19/52.9467/-1.1878> on Robert's
site. Postcode LE18 3TE seems to extend from the junction of Welford Road
with Guthlaxton Lane down to the Navigation at Kilby Bridge. I've just
added the telephone (from this Mapillary
<https://www.mapillary.com/map/im/thPKWiJGuO4RHRbe2ldOMg> image) which is
presumably UPRN 10025590850.

Given this looks to have been created by querying for objects via MasterMap
or similar I imagine the actual data is in practice covered by GeoPlace &
OSGB restrictions.

Nonetheless there are a few intriguing things mentioned which I cant locate
on OSM, including Lime Delph Road (which is probably the frontage road on
the new housing estate with unnamed road on the E). Nor is the nursery
obvious.

Jerry

On Sat, 4 Jul 2020 at 09:48, Jez Nicholson <jez.nicholson at gmail.com> wrote:

> From Wikidata, https://m.wikidata.org/wiki/Property:P8399 if you query
> the UK Flood service with the UPRN you can see more detail on the property
>
> On Sat, 4 Jul 2020, 08:52 Stephen Colebourne, <scolebourne at joda.org>
> wrote:
>
>> I'm not convinced this data should be pulled into OSM. It would add a lot
>> of clutter that users would be tempted to move around or delete. In areas
>> like mine where I've added thousands of buildings and addresses from
>> surveys, it would be making matters worse not better. It would be a
>> disincentive to adding more buildings with addresses as the additional
>> nodes would get in the way of editing, and because they represent a semi
>> random set of things. Because the dataset is fixed I would think it should
>> be a layer used alongside OSM by those tools that think it adds value.
>> Ideally, OSM itself should support layers, but AFAIK it doesn't.
>> Stephen
>> PS. Thanks for the slippy map!
>>
>> On Thu, 2 Jul 2020, 17:38 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/
>>>
>>> _______________________________________________
>>> Talk-GB mailing list
>>> Talk-GB at openstreetmap.org
>>> https://lists.openstreetmap.org/listinfo/talk-gb
>>>
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