[Talk-us] Fixing road network in New York — MapRoulette challenge

[Andy Townsend]

On 11/02/2019 13:01, Jmapb wrote:
> On 2/9/2019 9:30 AM, Ilya Zverev wrote:
>> Yesterday I took ~1 mln rides we made in December and matched them to 
>> the OSM road network. With that I found a few hundred points where an 
>> actual trace diverged from the matched one quite often. This usually 
>> means a oneway tag is wrong, or a turn restriction is incomplete.
>>
>> The result is this MapRoulette challenge: 
>> https://maproulette.org/mr3/challenge/3570
>>
>> Have fun,
>> Ilya
>>
> Thanks, Ilya -- this *is* fun! You've caught a lot of bad tagging 
> that's been sitting for years. Looks like we're about a third of the 
> way through these already. Teamwork!
>
I suspect that some of the problems aren't previous bad editing or even 
TIGER issues, but actual wilful vandalism.  I mentioned the problems due 
to this user last year (see 
https://lists.openstreetmap.org/pipermail/talk-us/2018-December/019144.html 
), but as they keep doing the same thing and resisting all calls for 
them to get in contact, I suspect it's probably deliberate.

I've just had a go at patching up their latest efforts (in changeset 
67172109 and the one before it - I'll comment on that when the OSM 
website comes back).  The admin relations 175711, 175698 and 175708 now 
look sane, but 397330 and 400000 look to have been broken for some time 
and could definitely benefit from someone local trying to figure out 
what is correct there (I'm guessing most of the wood one isn't).

Best Regards,

Andy