[Imports] Importing addresses in New South Wales, Australia

[Eliot Blennerhassett]

On 04/08/18 22:41, Dion Moult wrote:
>
>  I am still unsure about how to accurately map multiple addresses
> that end up in one spot. If there are just two (e.g. 18 Third Avenue,
> and 2/18 Third Avenue) over a house, I can just displace them and let
> it be. However, I am now encountering 49 nodes that are all in one
> spot. 

In the recent New Zealand wide address import, we ignored (deleted from
import), most large sets of coincident address nodes like this.
I.e. they have been left for a future update.

Where there were less than about 10, and the assignment to units looked
fairly obvious we spread them out.

In a few cases, I used JOSM's 'distribute' to scatter them slightly.


Possibly using https://wiki.openstreetmap.org/wiki/Key:addr:flats is a
way forward for this situation.


> Here's a sample of the addresses they have which I have sorted
> ascending:
> 
> ... snip ... 206/38-44 Pembroke Street 207/38-44 Pembroke Street 
> 208/38-44 Pembroke Street 210/38-44 Pembroke Street 212/38-44
> Pembroke Street 301/38-44 Pembroke Street 302A/38-44 Pembroke Street 
> 304/38-44 Pembroke Street 305/38-44 Pembroke Street 306/38-44
> Pembroke Street 306B/38-44 Pembroke Street 307/38-44 Pembroke Street 
> 310/38-44 Pembroke Street 401A/38-44 Pembroke Street 402A/38-44
> Pembroke Street ... snip ...
> 
> As you can see:
> 
> 1. It is ambiguous as to what it is, is it a flat, a tenant, a
> "granny flat" as the locals call it, another apartment block, etc? 2.
> It is not obvious what the interpolation pattern is. Odd? Even?
> Floors? Alphabetical suffix? 3. I have even encountered up to over
> 200 nodes in one spot (say for a large apartment tower, although
> admittedly these towers have a bit more logic to the numbering than
> the example given above)
> 
> At the moment, each one of these addresses are separate and distinct
> address nodes. I indeed can continue my conservative approach of not
> assuming interpolation, not merging, and not doing anything fancy,
> and instead only displacing them, however I'm not sure how mappers
> would react to 200 address nodes arranged in a 10m radius circle.
> 
> What should I do? Continue the conservative displacement strategy,
> or?

One possibility for the example you give above would be to just map
a single node at "38-44 Pembroke Street"

I wonder if in-person survey would shed any light on how/where to places
these addresses...

--
Eliot