Hi Aidan You might like to get a volunteer to check a pilot import that's limited within a manageable area - suggest a limited range of postcodes
Regards Brian On 15 January 2013 11:32, Aidan McGinley <aidmcgin+openstreet...@gmail.com>wrote: > @Rob yes I had seen that. It is a great tool, but as you say it's > difficult to be absolutely sure that what you get back is accurate > > To summarise what I'll be looking at doing > > Filter the following from the ONS Postcode data: > - Postcodes which have a date of termination set > - Postcodes whose centroid is shared with other postcodes > - Postcodes which have a quality indicator other than "Within the > building of the matched address closest to the postcode" > > Then match these filtered centroids to ways from Openstreetmap that have > the following criteria: > - The way is closed > - The postcode centroid is inside the way > - The way does not already have a "addr:postcode" tag > - The way is tagged building=* > > There are future enhancements that can be done around tackling ways tagged > amenity=* as per Rovastars comments, and reporting on postcode accuracy but > the above is enough for the initial version I think. > > If there are no objections to the above, I will start work on optimizing > the script and get in touch with the import mailing list to discuss how to > actually tackle the task of importing the data. > > > > > On 14 January 2013 19:54, Rob Nickerson <rob.j.nicker...@gmail.com> wrote: > >> Hi Aidan, >> >> Sounds like you have thought this through to ensure that this "import" >> will work well in practice. I would be more satisfied if imports were to >> closed ways with building=* only (as mentioned by others). >> >> Have you seen the Land Registry 'price paid' open data that includes >> addresses and postcodes. Matt had a go at creating a simple tool that >> matches their data to OSM address tags [1]. It's a great start, but be >> aware that the "nearby houses" only matches on street name and number so >> you can end up with addresses in different towns. Also it's quickest if you >> specify at least the first number after the space (e.g. CV4+8) >> >> Rob >> >> >> [1] http://milliams.dev.openstreetmap.org/postcodefinder/landregistry/ >> > > > _______________________________________________ > Talk-GB mailing list > Talk-GB@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-gb > >
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