[Talk-GB] UPRN Locations Map

Nick nick at foresters.org
Sat Jul 4 16:41:12 UTC 2020


Hi Mark

I was wondering in the future if street names etc. could be derived from 
Mapillary (attribution source=Mapillary) where images exist?

Cheers

Nick

On 04/07/2020 12:02, Mark Goodge wrote:
>
>
> On 04/07/2020 06:16, Kai Michael Poppe - OSM wrote:
>>
>> So, a few months ago I stumbled upon a note
>> (https://www.openstreetmap.org/note/2158104#map=19/51.49829/-0.32762)
>> that StreetComplete left saying, that the street couldn't be given a
>> name because there's none shown.
>>
>> Back then, I used streetmap.co.uk
>> (https://www.streetmap.co.uk/map.srf?X=516161&Y=179063&A=Y&Z=106) in
>> hopes to finding something - but only got "FAI RD." which - to me -
>> makes no sense.
>>
>> Also, using https://os.openstreetmap.org/ makes it look like that's just
>> an access path to houses around it, which is (IMHO) not entirely true as
>> the way directly linking Southdown Av. and Boston Rd. clearly is
>> publicly accessible.
>>
>> Now, using the above mentioned map
>> (https://osm.mathmos.net/addresses/uprn/#19/51.4983/-0.3279) I now know,
>> that this street has the UPRN ID 12145988.
>
> That may not be the UPRN of the path or street. It may be the UPRN of 
> the open space that the path runs through. The path is more likely to 
> have a USRN (unique street reference number) than a UPRN.
>
> To find the USRN of the path, you need to use the lookup tables 
> supplied by OS. Doing that, we find that the associated USRN is 20602512.
>
> Now, there's no open data source which will directly tell you the name 
> of a USRN (at least, not until we start putting them into OSM). The 
> long way of doing so is to find the matching LineString in OS OpenMap 
> Local, and see what name it has there.
>
> However, it can be done directly via a non-open source. If you go to 
> https://www.findmystreet.co.uk/map and zoom in on the location, then 
> click the street to bring up the USRN details, it will give the name 
> (and also confirm that the USRN from the OS lookup table is correct). 
> Or use the search box and search for USRN 20602512.
>
> From an OSM point of view, that would normally be a dead end. Even if 
> you can view the information on a non-open source, you can't 
> incorporate it into OSM. However, in this case, we already have an 
> abbreviated name from an open source. So all we are learning from the 
> closed source is the full text of the abbreviation. Whether that makes 
> it acceptable to include the full name into OSM is a matter of debate. 
> I'll leave that decision up to others, but, for reference, the name of 
> the street is Fairfield Road.
>
> Mark
>
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