[Talk-GB] Postcodes

Gregrs gregrs at fastmail.co.uk
Fri Jan 25 17:54:47 UTC 2019

Hi Jack,

On Fri, Jan 25, 2019 at 05:30:41PM +0000, Jack FitzSimons via Talk-GB wrote:

>What if one of those sources (say FHRS) shows the correct postcode but 
>more obvious sources (e.g. the company website) shows an old postcode? 
>I can use the correct postcode but it is likely to be changed back to a 
>wrong one by a mapper who has only found the obvious source.

I don't have answers to all your questions but it might be worth 
mentioning that the not:addr:postcode tag can be useful to record 
incorrect postcodes. I usually pair this with the note tag to explain my 
choice of correct postcode.

The FHRS/OSM comparison tool at 
https://gregrs.dev.openstreetmap.org/fhrs/ makes use of this tag so that 
FHRS establishments can still be successfully matched with OSM entities 
even when the FHRS postcode is incorrect, which does happen on occasion.


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