[Talk-ca] (no subject)

[Jarek Piórkowski]

Hi Sonya,

Thank you for the QA efforts.

I would have found it useful for reviewing this project if it included
specific examples of past issues fixed and what you intend to fix
going forward.

For example 996 fixes of "tr-missingroletr" doesn't really tell me
much and it's not trivial to figure out what was actually changed and
where. So I would be curious, which specific objects do you actually
intend to fix for (for example) islandshighways?

I had to dig into the zip files attached to the Github issue and look
at relation IDs to find this example:
https://www.openstreetmap.org/changeset/108096497. On this particular
example, the change itself seems to be good: the relation deleted
looks to have been incomplete and not needed, seemingly left over from
a roadway split. But I found the changeset message a little difficult
to understand, and it cited Bing aerial imagery as a source - but I'm
not clear how aerial imagery is a conclusive source on turn
restrictions which are frequently posted as vertical roadside signs.

I appreciate that the changesets have hashtags and there's probably a
search tool for changeset hashtags, but some links from the OSM wiki
page would be great too.

I would also suggest putting the fact that this is a Mapbox project,
rather than a local editor project, much more prominently in the OSM
wiki page.

Historically we have had some bad experiences with non-local mappers
dropping in via Maproulette and iD and making "fixes" without knowing
the area. A particular example was that crossings of roads with
ditches and minor streams would sometimes end up mapped as fords,
whereas in Southern Ontario these are almost always culverts. Of
course these then disappear from automatic lists of errors (crossing
waterways) while still being mapped incorrectly. I would suggest to
wherever possible use local sources like roadside imagery,
high-resolution aerial imagery, and if in doubt, leave it for someone
local to fix rather than fix it poorly.

Thanks,
--Jarek

On Mon, 30 Aug 2021 at 05:23, Sonya Khilchyk via Talk-ca
<talk-ca at openstreetmap.org> wrote:
>
> Hello from the Mapbox Team!
>
> In August our team is going to start a permanent mapping project in Canada.
> As part of on-going work to improve the quality of OpenStreetMap data, our team is planning to review a subset of the detections to better understand the type of issues, and also fix any valid data issues directly in the OSM.
> We would really appreciate your feedback, any questions you have about this project, as well as local insights that you think will help us better understand the data.
> There's a link to our Github ticket to the related issue: https://github.com/mapbox/mapping/issues/383
> And link to our page in OSM Wiki: https://wiki.openstreetmap.org/wiki/Resolving_lintings_problems_in_Canada
>
> Cheers,
> Member of Mapbox team, Sonya
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