*"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 <
gerhardus.geldenh...@gmail.com> 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 <
> talk-za@openstreetmap.org> 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 |
>> andrew_wise...@apple.com
>>
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>>
>
>
> --
> Gerhardus Geldenhuis
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