[Imports] [Talk-GB] Import UK postcode data?
Russ at PhillipsUK.org
Wed Oct 2 15:11:31 UTC 2019
OsmAnd is what made me think of it. I'm using that for directions a lot
now, and it's common these days to give a postcode to plug into a sat
nav, but they frequently don't work in OsmAnd.
I was somewhat surprised that it hadn't already been done, and I accept
all the reasons for not doing it.
I'll look into alternatives.
On 02/10/2019 15:52, SK53 wrote:
> I really see no point. The data are already present in Nominatim
> (albeit perhaps not up-to-date) and search is the ONLY thing that
> so-called postcode centroids can help with. DE24 (Sinfin) was imported
> long ago, see this overpass query <http://overpass-turbo.eu/s/MNZ>.
> What can be done is attempt to assign postcodes to streets, and
> various incomplete efforts have been made over the years. Open Data
> provides full addresses for around 70% of UK postcodes (principally
> Companies House, Food Hygiene & National Register of Social Housing).
> What would be useful is a maintained set of postcode information based
> on codepoint open/ONS postcode data/OS Local. The sorts of things
> which it would be useful to know are:
> * Is the postcode centroid co-located with others (e.g., delivery
> offices, some businesses, blocks of flats)
> * Can the postcode be unambiguously assigned to a street & post town?
> * Is the post code in use or not (ONS is now obviously 8 years old,
> but still potentially useful). Greg's FHRS tracker does appear to
> indicate a degree of churn with inner-city postcodes (although
> some of this will be inadvertent use of more general rather than
> specific postcodes by people filling in the FHRS forms)
> * Is a postcode the sole postcode for that street?
> Somewhere I have an old CPO table with some of this data populated. I
> think Geolytix had summary info associated with their post code sector
> shape files as well.
> Adding addr:postcode to streets which have a single postcode is in my
> book fine: numerous LAs put this on street signs (Rushcliffe & Gedling
> for sure); it's an intermediate step to adding the addresses to
> houses Once the postcodes which obviously belong to a single street
> are eliminated it's often easier to work out where the others belong.
> Note that other than for FHRS we have no good source for Northern
> Ireland postcodes at all. Equally assignment of rural postcodes is
> quite a bit harder than urban ones. In re-reading bits of Chris's blog
> last night I came across a post of his
> <https://chris-osm.blogspot.com/2017/03/have-you-moved.html> showing
> that some postcodes move huge distances between releases.
> PS. The Sinfin postcodes possibly should be removed as they were added
> IIRC before Mike Collinson's discussions with OSGB about OS Open Data.
> On Wed, 2 Oct 2019 at 13:44, Russ Phillips via Talk-GB
> <talk-gb at openstreetmap.org <mailto:talk-gb at openstreetmap.org>> wrote:
> I'm wondering if it would be feasible and advisable to import the
> UK postcode data from OS OpenData Codepoint
> The licence is OSM compatible. My thinking was that we could
> create a node for each data point and set the addr:postcode tag.
> This would be useful for routing software like OsmAnd, since it
> would allow a user to enter a postcode as a destination.
> I'm happy to do the work, but the import guidelines
> <https://wiki.openstreetmap.org/wiki/Import/Guidelines> say that
> imports should be discussed on the imports@ list and the
> appropriate local communities, hence this email.
> Russ Phillips
> Talk-GB mailing list
> Talk-GB at openstreetmap.org <mailto:Talk-GB at openstreetmap.org>
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Imports