[Talk-ca] CANVEC data address interpolation question -- Edmonton

[Sam Vekemans]

Hi,
Im cc'ing Daniel for the correct answer.  and James as a fellow
Edmonton Mapper... so you dont step on toes, accedently working on the
same tile.   (which is why i'm recommending IRC  #osm-ca chat on
oftc.net   so everyone knows whats going on.


On Thu, Jul 22, 2010 at 8:18 AM, Dan Post <dan512 at shaw.ca> wrote:
> Great to see the Canvec data files available, thanks for the work!
> I have been checking the address data in part of Edmonton, tile
> 083H11.0.0.0. Some of the address interpolation nodes have a value of -1
> (minus one).  In some cases, one end of the line has the correct address, a
> node in the middle has -1, or the node at the other end of the line is -1.
>  Is this a problem?

1st thanks for sharing the tile # your working on.

>From what i understand about canvec is that '-1'  means that the value
is 'unknown' or 'not available from the data source'.
So if at one end of the street has a number, it's just a guess on what
the other number is,   those need to be added in when found the
correct #.

So in order for it to render, something needed to be in place (to make
address interpolation work).  Otherwise the 1st number wouldn't show
up.   So i would leave it as '-1'   and maybe even add in the tag
'fixme=check housenumber'. ... then go around the neighbourhood and
note down what it actually is ... while adding other stuff that isn't
on the map.   Post boxes perhaps?

Perhaps others have answers that could work too :)

Cheers,
Sam


>
> I was thinking of using JOSM to import the address data into Openstreetmap
> for Edmonton.  Now wondering if I should import the addresses into OSM, and
> correct any problems later?
>
> Edmonton is already well mapped for streets, so I would not import them
> except where I can confirm by onsite observation that Canvec is closer to
> reality.
>
> Dan   (have been silently lurking here for a year, username: xixi)
>
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