[Talk-GB] MapRoulette challenge to add highways

[Kai Michael Poppe - OpenStreetMap]

Hey Marjan,

thank you for the challenge, I had fun doing it ;-)

As MapRoulette adds the URL of the challenge to the comment of any 
changeset (given the mapper doesn't remove it), it is possible to 
request all the CSs using OsmCha's API:

curl -X GET 
"https://osmcha.org/api/v1/changesets/?comment=https%3A%2F%2Fmaproulette.org%2Fbrowse%2Fchallenges%2F37289&page_size=10000" 
-H  "accept: application/json" -H  "Authorization: Token <<REDACTED>>"

will give you a json with all 56 CSs that contain the comment. As you 
said there were 88 cases and 64 cases where fixed, it's reasonable to 
assume that either 8 changes where fixed within one CS or someone 
removed the comment - but you've got 87,5% of changes available for you 
to analyze.

The Authorization Token, redacted here, can be retrieved when you're 
logged into OsmCha.org, click on your username, go to Account settings 
and copy the API key.

I have attached the result of the request for convenience.

Kai

On 24.01.2023 13:55, Marjan Van de Kauter wrote:
>
> Hi Rob,
>
> Unfortunately I don’t have any stats on the types of highways that 
> were added in the framework of this challenge. It’s hard to track this 
> because MapRoulette doesn’t show the changeset IDs connected to a 
> task. I do think the breakdown you’re looking for is valuable though. 
> I’ll try to find out if there’s some way to retrieve this 
> information—we might not be able to do so, but I’ll let you know if we 
> are.
>
> To your second question: I don’t have road names or street-side 
> imagery to share.
>
> In the meantime, I was able to get some more information about the set 
> of leads we will add to the “Add Highways” challenge this Thursday. 
> There will be about 800 new tasks in the Southern part of England 
> (including Winchester, Southampton, Portsmouth, Exeter, Wells, 
> Bristol, Plymouth, Truro, etc.).
>
> Kind regards,
>
> Marjan
>
> *From:*Rob Nickerson <rob.j.nickerson at gmail.com>
> *Sent:* Tuesday 24 January 2023 0:05
> *To:* Talk-GB <talk-gb at openstreetmap.org>; Marjan Van de Kauter 
> <Marjan.VanDeKauter at tomtom.com>
> *Subject:* Re: [Talk-GB] MapRoulette challenge to add highways
>
> Hi Marjan
>
> Yes, happy to receive the next set of challenges! I'd also be 
> interested in any stats on what we added in Kent if this is possible. 
> For example sometimes I added a service road, other times a 
> residential road and occasionally a path / footway. If you have the 
> breakdown that would be great, but if not, no worries.
>
> Do you have any road names along with these? It is a shame to add the 
> roads without the names! Street side imagery would also be useful :-)
>
> You're right about checking all the aerial imagery sources (Esri, 
> Bing, Maxar) as - even within such a small area - it wasn't always the 
> same one which was most up to date. The other source I found useful 
> was the OSM UK Cadastral Parcels layer.
>
> Best regards
>
> *Rob*
>
>
> _______________________________________________
> Talk-GB mailing list
> Talk-GB at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/talk-gb
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