[HOT] Project 11385
Ralf Bernhardt
raabee at gmx.de
Sun Feb 20 13:51:43 UTC 2022
getting interested by the blog post and subsequent discussion here, I
decided to monitor ongoing developments in this area. I wrote some
comments on changesets to make participants aware that alternative
imagery to the given project imagery should also be used - no response.
I also tried to correct some buildings and the road layout west of the
airport. Now mostly ruined again by project 12111. Also interesting to
see the discussion about changset 116808167.
Guess what? After mapping and validation this area with project 12120
again, the crap is still there. How is something like this possible?
Am 13.01.22 um 21:22 schrieb john whelan:
> I think one problem is each project is separate and independent.
> There is no requirement that says validation should be done in JOSM.
> Technically the task manager software could be configured to only
> allow JOSM to be used for validation.
>
> The other problem is the numbers involved. There just isn't a big
> enough pool of experienced mappers who validate.
>
> Just how do you validate a project with buildings? Much of the time
> the imagery is fuzzy. Some mappers always use Bing imagery to do HOT
> mapping no matter what the instructions say. Then you get to the odd
> shapes and sizes. Are you supposed to correct them? It takes much
> longer to correct them than to map them in JOSM with the
> buildings_tool plugin. This doesn't keep validators movitated to
> carry on validating.
>
> More central control? Dunno, there are tradeoffs but certainly we
> need some sort of standards for projects.
>
> Cheerio John
>
> On Thu, Jan 13, 2022, 06:02 Frans Schutz <frans.schutz at gmail.com> wrote:
>
> Hello.I have checked at random a few mappings of project 11385
> and can't say anything else but that the validation went well wrong.
> There are 2 people who validated most of them in iDeditor !!! and
> without correcting any significant errors.
> Info from "Overview of the ResultMaps @ neis-one.org
> <http://neis-one.org>"
>
> Validator 1 (experience with mapping since early December 2021)
> Quality assurance: iD editor: Resolved issues=679, Ignored
> warnings=1100
> OSMI issues (details): routing=12, tagging=8
> Osmosis issues: Level 1=0, Level 2=1, Level 3=2
>
> Validator 2 experience with mapping since early December 2021)
> Quality assurance: iD editor: Resolved issues=152, Ignored
> warnings=133
> OSMI issues (details): routing=2
> Osmosis issues: Level 1=0, Level 2=0, Level 3=0
>
> Then I am not talking about whether or not poorly mapped buildings
> were squared. Yes , changes were made, but most of them were not
> changed, while in iDeditor the errors were reported.
>
> To my opinion the best option here is to asign a few experenced
> validators to this project, put all tasks back to "more validaton
> needed" and start all over again with validating
>
> Best regards.
> Frans
>
> Op 11-1-2022 om 18:09 schreef john whelan:
>> Thank you Jiri,
>>
>> Thank you Pierre
>>
>> I just can't think of polite words to describe my reaction to the
>> news other than a plea to use JOSM and the buildings_tool plugin
>> to map buildings to avoid these sort of problems but at least we
>> understand some of the sources.
>>
>> Cheerio John
>>
>> On Tue, Jan 11, 2022, 12:04 Pierre Béland via HOT
>> <hot at openstreetmap.org> wrote:
>>
>> The link below points to a diary where a contributor reporte
>> bad edits in Modagisciu.
>> https://www.openstreetmap.org/user/UNGSC-DTLM-Ale_Zena/diary/398388
>>
>> Osmose Summary of errors shows that it is possible to monitor
>> a Collaborative project and assure we dont leave tons of
>> errors behind. The TM project 11385 for this area has just
>> been completed this week. Osmose errors summary for TM 11385
>> Area
>> <http://osmose.openstreetmap.fr/en/issues/open?item=xxxx&source=&class=&username=&bbox=45.279918,2.000613,45.330809,2.037097>
>> showed on 2022-01-08 :
>>
>> * 564 Highway intersecting buildings
>> * 231 Building intersections
>> * 93 Large building intersections
>> * 10 Long Highway underground and no tunnel
>> * and yes a lot of very imprecise buildings tracings could
>> be added to the list.
>>
>> Some errors might have been corrected since Osmose queried
>> the database 3 days ago, but
>> Highway https://www.openstreetmap.org/way/124549760 deserves
>> a mention since we see 10 highways reported as underground.
>> The higway did already exist in the database before this
>> project. A contributor traced buildings over it, then
>> revised the highway tags, adding layer=-2.
>>
>> See this Overpass query that loads both the highway and the
>> overlapped buildings.
>>
>> http://overpass-turbo.eu/?Q=(way(id%3A124549760)%3B%0Away(around%3A0)%5B%22building%22~%22.%22%5D%3B%0Anode(w)%3B)%3B%0Aout%20meta%3B%3E%3B%20out%20meta%3B%0A&C=2.03235;45.32651;20
>> <http://overpass-turbo.eu/?Q=(way(id%3A124549760)%3B%0Away(around%3A0)%5B%22building%22~%22.%22%5D%3B%0Anode(w)%3B)%3B%0Aout%20meta%3B%3E%3B%20out%20meta%3B%0A&C=2.03235;45.32651;20>
>>
>>
>> Pierre
>>
>>
>> Le mardi 11 janvier 2022, 10 h 53 min 46 s UTC−5, Martien van
>> de Griendt <m.griendt at gmail.com> a écrit :
>>
>>
>> Fyi, duplicate mapped buildings can also be caused by the
>> fact that ID Editor hides buildings when zoomed out.
>>
>> So mappers start to map them unaware of the fact that they
>> are already present.
>>
>> Regards, Martien
>>
>> On Tue, Jan 11, 2022 at 12:56 PM Jiri Vlasak
>> <jiri.hubacek at gmail.com> wrote:
>>
>> A bit of clarification about the script:
>>
>> > I note there are over 3,000 duplicated or overlapping
>> HOT projects.
>>
>> The script didn't care about if a project is archived.
>> Every ID between
>> 8000 and 12000 returning some geometry was considered. I
>> improved it
>> [1], to avoid project with "ARCHIVED" status. Here are
>> the results [2].
>>
>> > The AOI-BBOX is a rough approximation of the zone
>> covered by the
>> > Project
>>
>> The script uses `areaOfInterest`, not `aoiBBOX`. Polygon
>> or Multipolygon
>> is used, therefore the overlap detection is pretty precise.
>>
>> > The only problem I see is two overlapping active
>> project at exactly
>> > the same time.
>>
>> It's unfortunate HOT tech team is not able to deliver such a
>> functionality.
>>
>> Would it be useful to provide the similar stats on daily
>> basis? If so,
>> are there any information about the projects that should
>> be included?
>>
>> [1]:
>> https://paste.sr.ht/~qeef/4100c0f7547a241f7a8b8b48c980da78e4c6d402
>> [2]:
>> https://paste.sr.ht/~qeef/c2fe540f2f41a512f3f89d5960d9beeda21417b7
>>
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>
> --
> Frans Schutz
>
>
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