Andy Allan [mailto:gravityst...@gmail.com] wrote: >Sent: 12 November 2009 2:15 PM >To: Andy Robinson (blackadder-lists) >Cc: Ian Dees; OSM Talk; talk...@openstreetmap.org >Subject: Re: [OSM-talk] Addressing Question > >> Ian Dees wrote: >>>Hi everyone, >>> >>>I'm looking at some donated street centerline data that has addressing >data >>>in the form of "Right/Left From Addr" and "Right/Left To Addr" on each >>>street centerline. Is there an accepted way of applying these tags to the >>>road ways? It doesn't really make very much sense to create and store a >>>separate way just for the addressing information. > >It's a fairly well established convention that in OSM it's the >houses/plots, not the road centrelines, that are addressed. I'd say >it's better to approximate the gap between the road and the houses >(10m?) than to just put it on the centreline due to that being easier. >This has precedent already - a couple of areas in the US has Karlsruhe >schema addressing converted from what is clearly centreline data to >spread the addresses out on either side: > >http://www.openstreetmap.org/?lat=33.676517&lon=- >84.012017&zoom=18&layers=B000FTF > >Your point about 3 time the number of ways becomes increasing relevant >with the decreasing quality of the data you are importing - 3 times >the headache of fixing dreadful road geometries would be too much! > >On Thu, Nov 12, 2009 at 10:42 AM, Andy Robinson (blackadder-lists) ><ajrli...@googlemail.com> wrote: >> I'd let someone else work out if they can transcribe the data to another >> format once its in OSM, should that be desirable > >I disagree there. It's much better to put the effort in during the >initial import, than to import things badly and try to fix it up >later. We've been working on lots of post-import fixups in the last 6 >months and it's much harder than everyone assumes. The 4 months to >remove TIGER node tags is a case in point - it took less time than >that to import them!
You make a good point and I certainly wouldn't want to see data imported that was either difficult to rework or didn't make logical sense. If its been done before to offset left/right data automagically I too would vote for that as a preferred import method. Cheers Andy R _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
