I was wondering if it was worth creating a wiki page to provide more of these examples. Clearly the value of the data and types of false positives vary across the country.
Jerry On Sun, 5 Jan 2020 at 15:12, Russ Garrett <[email protected]> wrote: > Given the obvious flaws in the data, I'm actually quite surprised how > good it is at spotting unmapped service roads in London - including > those which pass beneath buildings. Most of them probably deserve a > survey though. > > Russ > > On Sun, 5 Jan 2020 at 15:04, Rob Nickerson <[email protected]> > wrote: > > > > Thanks Jerry. > > > > I'd also subsequently discovered the data dump but had not yet got > around to looking at it. What are you using here to view and work with the > data? Is QGIS and 6GB RAM sufficient? > > > > I would be interested in Warwickshire if you can extract that. > > > > And yes, we probably are not expecting much for the UK given how well we > already have most roads mapped. It's a shame it only shows missing roads as > I suspect it has better geometry of some rural roads in poorly mapped areas > than us - I still find jagged roads with source=npe. > > > > Nevertheless, the AI stuff is an interesting one to keep an eye on. If > improvements can be made and additional datasets incorporated, it could > become a significant aid in the future. For example I wonder if it could be > good at building detections when combined with other data such as LiDAR > height data. There is also the prospect of using AI to help find solar > panels. > > > > Best regards, > > Rob > > > > > > On Sun, 5 Jan 2020 at 14:07, SK53 <[email protected]> wrote: > >> > >> Perhaps more useful is that one can download the UK data as a > geopackage from > https://github.com/facebookmicrosites/Open-Mapping-At-Facebook/wiki/Available-Countries. > It's 147Mb zipped in a tar which unpacked is around 400Mb. > >> > >> I've had a very quick look and notice quite a few concentrations of > features which are obviously tractor lines in farmland. See this area > around Colston Bassett > https://wiki.openstreetmap.org/wiki/File:Colston_basset_fb_rapid.png. > Apparently such false positives can be marked as such in the editor which > ought to improve detections next time round. My suspicion is that things > which are actually roads are mainly driveways to outlying houses & farms or > farm tracks. Using OS OpenRoads is more likely to help find significant > missing adopted roads. > >> > >> Jerry > >> > >> I can potentially provide extracts for individual LAs if people want > them, send me an email. I personally found it easier to look at the data as > a whole rather than scanning around in the editor. > >> > >> > >> On Thu, 2 Jan 2020 at 22:09, Rob Nickerson <[email protected]> > wrote: > >>> > >>> Hi all, > >>> > >>> I just spotted that Facebook have pushed an update to their map with > AI project: > >>> > >>> "For our final release of 2019, we have released 84 new countries for > our AI road data with new coverage in the remainder of Europe, Asia, and > Oceania! AI roads are now available nearly globally." > >>> Source: > https://github.com/facebookmicrosites/Open-Mapping-At-Facebook/blob/master/WHATSNEW.md > >>> > >>> For those who don't know what MapWithAI is check out > https://mapwith.ai > >>> > >>> And to try it out in their RapID version of the iD editor: > https://mapwith.ai/rapid#background=Bing&disable_features=boundaries&map=18.60/53.40625/-2.13801 > >>> > >>> Just roads at the moment and not that easy to find a suggestion that > is worth adding (at least near me where roads are well mapped) but this > does demonstrate what is possible. Let us know if you have a good or bad > experience with this. > >>> > >>> Would be great to see this extended to buildings but we may have to > wait for Microsoft for that. > >>> > >>> P.S. A happy new year to all! > >>> > >>> Thank you, > >>> Rob > >>> _______________________________________________ > >>> Talk-GB mailing list > >>> [email protected] > >>> https://lists.openstreetmap.org/listinfo/talk-gb > > > > _______________________________________________ > > Talk-GB mailing list > > [email protected] > > https://lists.openstreetmap.org/listinfo/talk-gb > > > > -- > Russ Garrett > [email protected] >
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