Hi Colin, This is broadly in line with Robert's proposals. However, it raises questions about:
1. tagging "dependent localities" - they can be towns or villages. Are you happy with addr:town, addr:village for this purpose? Reaching consensus on that would be a major step forward. 2. Tagging "dependent throughfares". I think they could be used to tag "building name, Cambridge Science Park, Milton Road, Cambridge". This could be addr:place except in OSM addr:place should not be combined with addr:street. Or, like in Robert's proposal, addr:street+addr:parentstreet. Except that CSP is a campus, not a street. 3. Tagging subbuildings. Addr:unit is available but is fairly limited (unit names?) and vague. 4. PO Box - I haven't thought about it. Is that something that we would include at all in a geographical database? Perhaps if it is associated with a business that has a known location but uses PO Box as its address? Best wishes, Andrzej On 28 January 2019 05:21:36 GMT+08:00, Colin Smale <colin.sm...@xs4all.nl> wrote: >Assuming the post code is seen in OSM as a way of addressing post (as >opposed to a geographic subdivision or an indication of location) then >I >suggest following Royal Mail's address structure, which can be seen in >the description of the Postcode Address File on Wikipedia [1]. If we >cannot map a full-format address onto OSM tags, we need a description >of >how to deal with this (i.e. which bits to leave out or combine). > >I have taken the table from wikipedia and added a column for the OSM >tags where known. Most of these fields are actually optional, or not >always present, depending on the exact address in question. > >How do we fill in the blanks? > > ELEMENT > FIELD NAME > DESCRIPTION > MAX LENGTH > OSM > > Organisation > Organisation Name > > 60 > n/a > > Department Name > > 60 > n/a > > Premises > Sub Building Name > > 30 > > Building Name > > 50 > addr:housename > > Building Number > > 4 > addr:housenumber > > Thoroughfare > Dependent Thoroughfare Name > > 60 > > Dependent Thoroughfare Descriptor > > 20 > > Thoroughfare Name > Street > 60 > addr:street > > Thoroughfare Descriptor > > 20 > > Locality > Double Dependent Locality > Small villages > 35 > > Dependent Locality > > 35 > > Post town > > 30 > addr:city > > Postcode > Postcode > > 7 > addr:postcode > > PO Box > PO Box > > 6 > >[1] https://en.wikipedia.org/wiki/Postcode_Address_File > >On 2019-01-27 21:40, Andrzej 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 >> >> _______________________________________________ >> Talk-GB mailing list >> Talk-GB@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/talk-gb
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