Oh, how silly. I responded to Steve alone, rather than the list. Here you go.
-------- Forwarded Message -------- > From: Richard Weait <rich...@weait.com> > To: Steve Singer <ssinger...@sympatico.ca> > Subject: Re: [Talk-ca] Address ranges > Date: Sat, 21 Mar 2009 22:00:31 -0400 > > On Sat, 2009-03-21 at 21:21 -0400, Steve Singer wrote: > > I'm starting to think about how we might want to import address range data > > from Geobase/Statscan into OSM. > > Hi Steve, (and all) > > I would love to see the address data imported. > > Everything that you said sounds good. I think that the address nodes > must be off the road. > > My understanding of Karlsruhe schema is imperfect, but I believe that > interpolated addresses require a way rather than two nodes? If so, and > if we address a "curvy" block, then the address-interpolation-way may > cross the block twice or more. I don't know if that is fatal to > addressing, but it would look suboptimal. Given this situation, is it > possible to add the interpolated way by: > > duplicating the road / block > clip four meters from each end > offset from the road by two meters > apply address interpolation data as appropriate. > > Repeat for other side of road > > This might give us a map like: > > ! H ! > ! H ! > ----- H ----- > ===========#=========== > ----- H ----- > ! H ! > ! H ! > > So the roads look pretty normal and the addressing ways look like > sidewalks that never meet with each other. We will need to adjust the > distances to something sensible. (How acute an angle do addressed road > meet?) > > This does triple the db size (node and way count) for each road with > address info. But it's just Canadian road data, it's not like we're > tripling the size of the US data.... > > Wonderful news that you are looking at this. > > Best regards, > Richard > _______________________________________________ Talk-ca mailing list Talk-ca@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ca