Of course. You can see details on signs and on walls on aerial imagery. I'm not saying that nobody should anymore visit a place that has been traced from aerial imagery. But for Australian aerial imagery like Nearmap's which is very recent and of a high resolution, I think that Australians would derive much more info from that imagery than if some random non-Australian person like me were to actually visit the place.
Heck, there are places in my city that haven't been visited by any mapper in the last 3 years! Aerial imagery that is 3 months old is a lot better than that! On Mon, Dec 20, 2010 at 8:18 AM, <j...@jfeldredge.com> wrote: > OK, but there will likely be additional details available from visiting the > site in person that you wouldn't be able to detect from an aerial view, plus > you would be able to tell if the road had been modified since the aerial > photo had been taken. > > -------Original Email------- > Subject :Re: [OSM-talk] Bing maps is misplaced > From :mailto:sea...@gmail.com > Date :Sun Dec 19 18:00:21 America/Chicago 2010 > > > For *that* particular imagery, yes. > > My point is that blindly saying that you shouldn't trace from imagery > if you haven't visited the place is not a hard rule. There are a lot > of circumstances when tracing is actually OK. > > > On Mon, Dec 20, 2010 at 3:19 AM, John F. Eldredge <j...@jfeldredge.com> wrote: >> So, you are saying that you feel OpenStreetMap should reflect the status of >> the road when the aerial photo was made, rather than the current status? >> >> -------Original Email------- >> Subject :Re: [OSM-talk] Bing maps is misplaced >> From :mailto:sea...@gmail.com >> Date :Sun Dec 19 10:17:51 America/Chicago 2010 >> >> >> On Sun, Dec 19, 2010 at 8:04 PM, M∡rtin Koppenhoefer >> <dieterdre...@gmail.com> wrote: >>> 2010/12/15 Steve Bennett <stevag...@gmail.com>: >>>> I'm sorry, but no. This is not common practice, nor is it desirable. >>>> Could we please not give advice which only reflects personal >>>> preferences? >>>> >>>> Fwiw, highway=road is for when you know *nothing* about a road. Can >>>> you tell me, hand on heart, that you would not tag this road: >>>> >>>> http://www.nearmap.com/?ll=-38.107325,145.15275&z=20&t=k&nmd=20101020 >>>> >>>> as highway=residential, maxspeed=50, surface=paved, lanes=2? >>> >>> >>> If I knew the road I would surely do it. For the_point_ you linked >>> to, it seems correct (the maxspeed at least for one direction), but I >>> still would have to guess, that this maxspeed is valid for the other >>> direction as well (probably yes, but you cannot be sure) and that it >>> is valid for the whole road. >> >> If I was a tourist and I went to that particular spot and saw that >> "50" on the ground, I still wouldn't know if the speed limit is just >> for one direction or both and if it applies to the whole road. So even >> if I were on the ground, my information would not be much better than >> if I traced from that particular aerial imagery. >> >>> Don't know if it is a residential street either (could be unclassified >>> or tertiary). Of course you don't know for other restrictions (e.g. >>> weight, but also access=destination, ...). You can be quite sure for >>> the information you provided above, but still you don't know if some >>> important information (like access=destination) that you surely would >>> insert if you had visited the place, is missing. >> >> OSM's a wiki, so other people can add those details. There's no need >> to have everything topnotch on the first edit. Otherwise we'd have a >> pretty blank map. >> >>> This discussion is simply about the quality level: are you satisfied >>> with probable information derived from an aerial photo depicting the >>> situation some years ago, or do you want to insert only information >>> you verified on the ground and you can guarantee for? >> >> For aerial imagery that is of a high resolution and recency as >> Nearmap's, I would rather trust an Australian to trace and add data >> from that imagery even if he/she has not been to the place than if I >> were to actually visit that place and add details from on the ground. >> >>_______________________________________________ >> talk mailing list >> talk@openstreetmap.org >> http://lists.openstreetmap.org/listinfo/talk >> >> -- >> John F. Eldredge -- j...@jfeldredge.com >> "Reserve your right to think, for even to think wrongly is better than not >> to think at all." -- Hypatia of Alexandria >>_______________________________________________ >> talk mailing list >> talk@openstreetmap.org >> http://lists.openstreetmap.org/listinfo/talk >> > > > > -- > http://vaes9.codedgraphic.com > > -- > John F. Eldredge -- j...@jfeldredge.com > "Reserve your right to think, for even to think wrongly > is better than not to think at all." -- Hypatia of Alexandria > _______________________________________________ > talk mailing list > talk@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk > -- http://vaes9.codedgraphic.com _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
