Dear all
Sorry to resend this but I just wanted to have some feedback on my
recommendations about addresses and my question about the postcodes, if
anyone is able to help, before I add these recommendations to the wiki.
Cheers!
On 20/01/14 12:41, Stéphane Guillou wrote:
Thanks Ben and Warin for your input.
So my understanding of it so far is that we could recommend to tag as
follows:
*addr:housenumber=*separated with semicolons if several, or range
using a hyphen (current general addressing recommendations)*
**addr:street=*full way name*
*/*addr:postcode=*/four-digit postcode
/addr:suburb=//suburb name
//addr:city=large conurbation (is this the right term?) e.g. Sydney,
Melbourne//
//addr:state=whole name (as general rule is to make it as
human-readable as possible)//
//addr:country=AU (country code as currently recommended)//
/
Housenumber and Street should be pointed out as the most important
bits, as Ben explained. Tags in italic are the less important ones as
they can be deduced from existing boundaries, and thus ignored to
minimise a risk of confusion or inaccuracies. (?)
I understand from this page
<https://wiki.openstreetmap.org/w/index.php?title=Import/Catalogue/ABS_Data>
that the suburb boundaries already exist. About Australian postcodes,
the same page says that an older dataset was removed due to a change
in licensing. Is there any postcode boundary data currently in use for
Australia?
Add:city is a particular case as I understand there is no official
boundaries for those "conurbations" - am I getting this right, Ben? In
that case, should we recommend users not to use this tag at all as it
might end up being confusing?
Cheers
chtfn
On 20/01/14 09:35, Ben Kelley wrote:
Hi.
There is an admin boundary level for local government areas. This is
like a British county.
Note that all these can be derived for an address simply by looking
where the address node is. Is it inside the boundary for the country
Australia? Then then the address is in Australia. No need to tag it
as well. Same for suburb/town, LGA and state.
The things you can't infer from an address's location are the street
number, and which street it is associated with.
The boundaries for state and country are well defined. Less so for
town and LGA, but tools like Nominatum will use these boundaries to
describe addresses where they are present.
- Ben Kelley.
On 20 Jan 2014 09:22, "Warin" <61sundow...@gmail.com
<mailto:61sundow...@gmail.com>> wrote:
On 19/01/2014 8:48 PM, Ben Kelley wrote:
Hi.
I think in Australia, as far as gazetted places go, suburb=town,
but for these, you can derive it if the suburb has an admin
boundary.
City is not gazetted. E.g. Sydney is a suburb. An address in
nearby Pyrmont is not in Sydney (the suburb), so saying it is in
a city called Sydney might be confusing.
- Ben Kelley.
Perhaps better to deal with it as a county/shire issue? As we are
british based then this may be of some assistance?
http://wiki.openstreetmap.org/wiki/English_Counties
This should separate any two suburbs of the same name (I hope!).
Unfortunately these are not in common use here (unlike britain)
so may not be helpful for general navigation.
As for the post office - I'd think they use the post code first
rather than the city/suburb. I'd think the OS Map is for
navigation, not for the post office? So it should make sense in a
navigational way?
On 19 Jan 2014 14:01, "Stéphane Guillou"
<stephane.guil...@gmail.com <mailto:stephane.guil...@gmail.com>>
wrote:
Thanks everyone for your input.
I wonder what was the rationale behind using abbreviations
for countries and states as I understood that the database
must be as human-readable as possible.
Still, I will be following the recommendations on the
Key:addr page for addr:country=AU.
However, I am still unsure about suburb vs city. Key:addr
tells us to watch out for the Australian definition of
suburbs, and Wikipedia says the following:
"In Australia and New Zealand, suburbs have become
formalised as geographic subdivisions of a city and are used
by postal services in *addressing*."
As we are here tagging the address, I was wondering: are we
tagging so the addresses appear as they should when we use
them (e.g. when we write them on an envelope) - the original
point of tagging an address I guess - (in which case I would
just go with addr:city=The Gap), or should we understand the
tags as literally as possible (in that case, I would go
addr:city=Brisbane and addr:suburb=The Gap).
What would be the best way to decide on a convention so we
can add guidelines for OSM-AU?
Cheers
Stéphane (chtfn)
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