[Talk-GB] worrying edit to junction (now reverted)

[Robert Skedgell]

I've done something similar at a farm in Essex redeveloped as very
expensive housing. The new housing is clearly visible on Bing and Maxar
Premium, but the older farm buildings which had been mapped previously
are still in Esri Clarity. I've used the demolished: and removed:
prefixes for buildings and service roads respectively, although razed:
for both might have been better.
https://osmcha.org/changesets/97558382/

On 20/01/2021 09:41, Edward Catmur via Talk-GB wrote:
> One thing you can do is to leave the old ways in place, retagged with a
> lifecycle prefix (probably razed:), and with dates if known. It won't
> necessarily stop people replacing them, but it should give them pause.
> 
> On Wed, Jan 20, 2021 at 9:15 AM Jon Pennycook <jon.pennycook at gmail.com
> <mailto:jon.pennycook at gmail.com>> wrote:
> 
>     Amazon had a habit of drawing old roads in construction sites,
>     including putting old roads through the middle of new parks, based
>     on old aerial imagery - all in areas that I had already mapped (and
>     sometimes where I had supplied imagery to Mapillary). They reversed
>     the changes when I noticed them, but it is annoying when people use
>     old imagery. 
> 
>     Jon 
> 
>     On Wed, 20 Jan 2021, 08:40 Ken Kilfedder,
>     <spiregrain_osm at ksglp.org.uk <mailto:spiregrain_osm at ksglp.org.uk>>
>     wrote:
> 
>         __
>         I write for advice on couple of related, very annoying edits
>         that happened in my area yesterday.  One of the two users
>         responded to a changeset message, and reverted the change.
> 
>         I suspect they were involved in doing mass or part-automated
>         edits for Facebook.   The two offending changes are:
> 
>           * https://www.openstreetmap.org/changeset/97788019
>             <https://www.openstreetmap.org/changeset/97788019>  /
>             https://osmcha.org/changesets/97788019/
>             <https://osmcha.org/changesets/97788019/>
>               o (Remodelled a T-junction back to the roundabout it was 2
>                 years ago - complete with entry lanes etc. a very nice job)
>           * https://www.openstreetmap.org/changeset/97789682
>             <https://www.openstreetmap.org/changeset/97789682> /
>             https://osmcha.org/changesets/97789682/
>             <https://osmcha.org/changesets/97789682/>
>               o (Patched up the resulting gaps in route relations, etc)
> 
> 
>         Like I say, the users have at least put everything back, and
>         have engaged in conversation on the subject.   So it's not a
>         matter for DWG.
> 
>         But my concern is that one of them has around 1000 edits to his
>         name; and that the two user names *imply* dozens (hundreds?) of
>         others a blundering about replacing accurate in-person mapping
>         with nice-looking but incorrect data from who-knows-what sources?
> 
>         Is anyone keeping a log of similar incidents from FB mappers
>         and/or our other corporate benefactors?
> 
>         Am I making a mountain out of a molehill?  Happy to wind my neck
>         in, if so.
> 
>         ---
>         https://hdyc.neis-one.org/?spiregrain
>         <https://hdyc.neis-one.org/?spiregrain>
>         spiregrain_osm at ksglp.org.uk <mailto:spiregrain_osm at ksglp.org.uk>