[Talk-GB] Mapbox mapping activity

[Sonya Khilchyk]

Hi! Thanks for your feedback!

We will use street level photos where possible. If satellite imagery has
bad quality or there are no sources at all, we wouldn't touch any
roundabouts. Also we will use all available information from OSM wiki and
look twice through our work to avoid mapping mistakes.
We will add 'give ways' and turn restrictions on the cases like example 1,
thanks for mentioning it!
I changed the picture in example 3, because it's really not actual for
tagging as a mini-roundabout. We will add mini-roundabout only on
roundabouts with a traversable center.
About example 4: I read osm wiki
<https://wiki.openstreetmap.org/wiki/Tag:traffic_calming%3Disland> one more
time, you're right, the example on our page looks like small regular
roundabout. In such cases we will map roundabout and tag island with
'traffic_calming=island' tag.


Best regards,

Member of Mapbox team,

Sofiya



On Tue, Feb 14, 2023 at 9:06 PM SK53 <sk53.osm at gmail.com> wrote:

> I've just looked at the examples, and have the following comments:
>
>    - Example 1 :This is actually nothing more than a typical Spanish
>    intersection designed so that there are no left turns. I don't think adding
>    a junction=circular would do any harm, but the essential things here are to
>    map give ways and the relevant turn restrictions (probably straight_on_only
>    where the circular part crosses the main road & right_turn_only on the
>    other interconnectors). Here's an example
>    <https://www.openstreetmap.org/#map=19/40.13443/-5.22856> of a similar
>    junction with such turn restrictions.
>    - Example 3. At least in the UK, a small roundabout with a
>    non-traversable centre is still a roundabout, not a mini-roundabout.
>    - Example 4. Superficially this looks like a mini-roundabout, but on
>    checking <https://www.openstreetmap.org/#map=19/40.76224/14.45764>
>    this has a non-traversable centre, so is a small regular roundabout. I'm
>    not sure what junction=roundabout plus traffic_island=yes even means,
>    although there are very small number <https://overpass-turbo.eu/s/1rlG>
>    (two) of such in the UK
>
> None of the examples are from the UK, which also makes it hard to evaluate
> the planned changes.
>
> Jerry
>
> On Tue, 14 Feb 2023 at 15:54, Sonya Khilchyk via Talk-GB <
> talk-gb at openstreetmap.org> wrote:
>
>> Hello from the Mapbox Team!
>>
>>
>> In February 2023 our team is going to start a mapping project in the UK.
>>
>> The project was created to review errors in roundabouts data and fix it
>> where there’s possibility for improving the road network and enough ground
>> truth sources. We’re concentrating on road mistakes to improve map
>> condition. We’re using the automatic process for getting the detections
>> which is based on osmium and osmLint (link
>> <https://github.com/osmlab/osmlint>).
>>
>> In cases of lack of up to date satellite or imagery the team doesn’t make
>> any edits. And always taking care about local sources, which are the most
>> relevant and unique for each country.
>>
>> On our wiki page and ticket (osm wiki
>> <https://wiki.openstreetmap.org/wiki/Organised_Editing/Activities/missing_roundabouts_UK>
>> /ticket <https://github.com/mapbox/mapping/issues/420>) there is
>> detailed information about the background, satellite imageries, timeframes,
>> contact mails. Also, for more clear understanding we have osm wiki pages
>> with more detailed info about how we deal with feedback (link
>> <https://wiki.openstreetmap.org/wiki/How_Mapbox_Data_RAVE_team_work_on_receiving_feedback_from_OSM_users>
>> ).
>>
>> 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.
>>
>>
>> Best regards,
>>
>> Member of Mapbox team,
>>
>> Sofiya
>>
>> _______________________________________________
>> Talk-GB mailing list
>> Talk-GB at openstreetmap.org
>> https://lists.openstreetmap.org/listinfo/talk-gb
>>
>
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