[Talk-GB] Tagging post towns and other addressing issues in the UK

Will Phillips wp4587 at gmail.com
Wed Jan 30 23:18:33 UTC 2019

Hi Andrzej,

I feel a bit conflicted here. Having the choice of several tags does 
make things easier when adding complicated addresses, but for less 
experienced mappers it does also help if things are kept simple. For 
example, if better guidance regarding UK address mapping was added to 
the wiki, it would definitely be clearer to recommend one main tag for 
places below city.

I've noticed that iD varies the address fields shown depending on which 
country is being edited. Some countries have a field labelled 'Suburb', 
while for the UK the only level above street is 'City'. It would 
definitely improve things if another field could be added, but it would 
be difficult to argue for adding several fields. Therefore, it would 
probably be better to agree on one main locality tag. Whatever happens 
tags such as addr:suburb and addr:village are already in use and will 
most probably continue to be used.


On 30/01/2019 22:24, Andrzej wrote:
> Thank you for the discussion so far. I've been thinking about a 
> solution for tagging localities that would work for both mappers who 
> want to tag locality types and those who don't. Current proposals 
> (addr:town|village and addr:locality|sublocality) are two distinct and 
> incompatible tagging schemes so reaching a consensus may be impossible.
> How about tagging localities as addr:locality|sublocality _and_ 
> addr:locality|sublocality:type=city|town|suburb|village|hamlet|campus, 
> so they can be added separately and at different times?
> Best regards,
> Andrzej
> On 28 January 2019 04:40:26 GMT+08:00, Andrzej <ndrw6 at redhazel.co.uk> 
> wrote:
>     Hi,
>     When working on post codes in East Anglia I realised the current
>     address tagging scheme is insufficient for even fairly basic
>     scenarios. I have already discussed the issues with some of the
>     most experienced mappers and like to bring these issues to your
>     attention. Robert has summarised his ideas in
>     https://wiki.openstreetmap.org/wiki/User:Rjw62/UK_Address_Mapping
>     The bottom line is, I would like to be tag commonly used addresses
>     without losing information and without resorting to addr:full.
>     Issues:
>     1. Post towns (most pressing one because there is a lot of
>     confusion around it). The UK is fairly unique in that not every
>     town is a post town. This makes it impossible to tag e.g. Station
>     Road, Histon, Cambridge CB24 9LF.
>     Wiki recommends addr:city to be used for tagging post towns
>     (Cambridge) but then how do we tag Histon?
>     - Robert recommends sticking to the current meaning of addr:city
>     and using addr:town and addr:village for town and village names,
>     which, although not in wiki, are already being used in the UK. I
>     like this solution because it is very explicit in what each addr:
>     key means and it doesn't redefine addr:city.
>     - SK53 prefers using addr:city for everything (towns, even
>     villages) and either not tagging post towns (they can be seen as a
>     an internal detail of a closed Royal Mail database) or using a new
>     tag for it, like addr:post_town. It is a simple solution, results
>     in Histon being called Histon and not Cambridge (without
>     introducing new tags for town and village names) and is commonly
>     used. It is also a bit confusing (what exactly is a city?) and I
>     think we we should at least support tagging post towns.
>     Key questions:
>     a) addr:city for post towns or towns and villages?
>     b) how to rag remaining information (respectively, towns and
>     villages or post towns,)
>     2. Tagging addresses within campuses, business parks etc. There is
>     addr:place but it is supposed to be used instead of addr:street.
>     Again, Robert has a fairly decent proposal for that using
>     addr:place or addr:locality and addr:parentstreet. Please comment.
>     2a. should buildings in campuses be tagged with
>     addr:buildingnumber/name or addr:unit? I would prefer
>     buildingname/number (as they are often subdivided) but these seem
>     to be associated with addr:street.
>     3. Similar to (2) but for buildings. Tagging buildings that have
>     e.g. a single name but multiple house numbers?
>     Best regards,
>     ndrw6
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