*"Armchair mapping" is dangerous if you are not properly ground truthing changes and you have not specified the criteria that you are using on imagery to determine whether a road qualifies as a service road or not. I for one do not see the value that changing these tags would add other than shape the data according to Apple's criteria for what Apple wants in a map, which is not what OpenStreetMap is about.*
Case in point: the M3 in Cape Town arbitrarily being changed by armchair mappers to be highway=trunk for its entire length, blissfully unaware of the sections that should be highway=motorway (and that are delimited with start/end freeway signs that are blindingly obvious to anyone actually driving along it). I did emigrate from South Africa two years ago though, so very hesitant to fix that one myself, even though I know where those signs are with reasonable accuracy. --K On Wed, 12 Aug 2020 at 09:55, Gerhardus Geldenhuis < [email protected]> wrote: > Hi > The definition of a service road seems a bit arbitrary even in the > official tagging policy mentioned: > https://wiki.openstreetmap.org/wiki/Key:highway > One man's service road is another man's narrow residential road. > > "Armchair mapping" is dangerous if you are not properly ground truthing > changes and you have not specified the criteria that you are using on > imagery to determine whether a road qualifies as a service road or not. I > for one do not see the value that changing these tags would add other than > shape the data according to Apple's criteria for what Apple wants in a map, > which is not what OpenStreetMap is about. > > Regards > > On Tue, 11 Aug 2020 at 22:41, Andrew Wiseman via Talk-ZA < > [email protected]> wrote: > >> Hi everyone, >> >> This is Andrew from Apple again. Earlier in the year I emailed about our >> team working on some road network improvements ( >> https://lists.openstreetmap.org/pipermail/talk-za/2019-January/001248.html) >> and lately we have had some discussions about road classification around >> service roads and residential roads after we added some missing ones. I >> wanted to let you all know what we were thinking and get your feedback to >> see if you agree or have other suggestions. >> >> The South African Tagging Guidelines ( >> https://wiki.openstreetmap.org/wiki/South_African_Tagging_Guidelines) >> don’t mention service roads at all, and the global tagging guidelines ( >> https://wiki.openstreetmap.org/wiki/Key:highway) describe service roads >> to be used for specific commercial/industrial estates or >> driveways/alleys/car parks. It was suggested to us that service should be >> used for private roads to access buildings, which are generally dead end >> and/or have barriers or gates, and short roads that don’t have names. >> >> This seems logical to us, and if others agree with that maybe the South >> African Tagging Guidelines can be updated with that information. We can >> make the edits to the Wiki page if you’d like. >> >> We are also currently going back and changing roads to service to fit >> these suggestions in and around Cape Town. >> >> One tricky point in the suggestions is that we can’t tell from aerial >> imagery which ones don’t have names, so those might get missed. What does >> everyone think of that point? >> >> Thanks! >> >> Andrew >> >> Andrew Wiseman | Maps | iPhone: +1.202.270.4464 | >> [email protected] >> >> _______________________________________________ >> Talk-ZA mailing list >> [email protected] >> https://lists.openstreetmap.org/listinfo/talk-za >> > > > -- > Gerhardus Geldenhuis > _______________________________________________ > Talk-ZA mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/talk-za >
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