On Tue, 7 Jan 2020 at 21:00, Colin Smale <colin.sm...@xs4all.nl> wrote:
Royal Mail do not say the Post Town is optional. RM also know of localities > and dependent localities, which may or may not bear any resemblance to an > inhabitant's perception of where they live. > Yeah, that's what they say. But only house name/number and postcode are required to uniquely identify a deliverable address. Royal Mail strongly suggest you include the other stuff as belt and braces. > > [...] > > > Postal counties have been deprecated for years, but are still in many > people's minds. Metropolitan counties are no longer "administrative". > Traditional counties maybe? But almost certainly not administrative > counties. > Try buying something online. They want a county. And quite possibly only let you choose a county that no longer exists (except as a ceremonial county) such as Dyfed rather than the county you're actually in, such as Ceredigion. > > > So if I am now more explicit about my intention to help this discussion > towards a conclusion..... > Actually, you sorta hijacked a discussion about whether to put the address on a building or a nearby gatepost. This discussion is probably needed too. What an address refers to, is different in the UK compared to other > countries. We will never find a single model to fit the whole world that is > not abstracted to the point that it becomes useless. Let's stop chasing our > tails, and accept that. > Already have. Long ago. Not sure that what we have, even in the UK, is entirely fit for purpose because I have several examples in my own town alone that don't fit that model. These are, to some extent, country-specific editor preset issues: figure out what works in a given country and persuade the people maintaining the editors to adopt it. Yes, I'm simplifying a lot (again). > > Back to the philosophical question: Is a normal "address" in OSM: a) for > delivering letters, or b) for navigation, or c) an identifier of a > building/premises, or d) something else? > The philosophical question is actually should we limit/prohibit any of those uses? I think not. We can't force any mapper to add all of the info, but we ought not to prevent them from doing so. Should/could we cater for these different definitions of "address", e.g. by > having tags like addr:{address_type}:{address_element}? This is a question > that IMHO is probably best addressed at global level; then let each country > have its own model within that framework. > Gut feeling, without any real analysis, is we don't have address_type, we just have address_elements. Because in one country address_element X may be a critical component of address_type A but in another country it's a critical component of address_type B. Just have address elements and it's up to the consumer to make sense of them. -- Paul
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