46 changesets created by Jean-Marc Liotier have been discussed with 37 replies of this contributor
Changeset # Tmstmp UTC Contributor Comment
169731938
by Jean-Marc Liotier
@ 2025-07-30 17:13
12025-07-30 17:15Jean-Marc Liotier Sorry for large changeset bounding box: I had started with a simple attribute edit of incorrectly capitalized health infrastructure names and attributes, and got carried away in Kaffrine...
168145874
by Jean-Marc Liotier
@ 2025-06-26 15:38
12025-06-26 15:40Jean-Marc Liotier Sorry for the uninformative changeset comment: RAM was saturated and I couldn't edit the field, only select a value. This is of course about capitalization: BWAISE -> Bwaise.
163959549
by Jean-Marc Liotier
@ 2025-03-22 18:23
12025-04-15 10:23Syl
♦973
Bonjour, tu as ajouté des jardins sur un grand nombre de nœuds, notamment au croisement de routes et de barrières. Serait-il possible de corriger ?
22025-04-16 00:32Jean-Marc Liotier Bien vu - merci ! Corrigé par https://www.openstreetmap.org/changeset/165006620
33581993
by Jean-Marc Liotier
@ 2015-08-25 20:27
12023-05-30 10:22marc__marc
♦1,265
Bonjour,
je tombe sur cette perle :
source \tDo my approximate memories of numerous strolls along this pond qualify as "source=survey" ?
l'attribut source n'est quand même pas le bon endroit pour poser une question :)
et pour la réponse, c'est non :) survey ...
44595582
by Jean-Marc Liotier
@ 2016-12-22 16:59
12022-08-21 00:19marc__marc
♦1,265
Bonjour,

https://www.openstreetmap.org/way/461174958
je m'étonne des tags d'accès, il y a vraiement un panneau avec tout cela à cet endroitr ? particulièrement la combinaison de privé <> pas privé selon le type de véhicule m'i...
33450724
by Jean-Marc Liotier
@ 2015-08-19 21:29
12022-05-27 14:04Syl
♦973
Bonjour, cela maintenant près de 7 ans, est-ce qu'on peut nettoyer ?
104985722
by Jean-Marc Liotier
@ 2021-05-19 21:36
12021-06-02 01:20Bert Araali
♦98
You deleted a building (Plan B pub, now hanging idle) consisting of 3 units. Recent satellite imagery shows only the middle unit was demolished. Can you please add the remaining units back and consult the previous editor if the previous pub located there still exists ? Stop deletions please and use ...
105489400
by Jean-Marc Liotier
@ 2021-05-28 11:48
12021-06-02 00:29Bert Araali
♦98
As source you give survey, does this mean that the construction area you created on top of the Arua Hill pitch is no longer a community park and sports area ? Mapilary imagery of feb 2018 shows the contrary, shows it still as a playground.
105504807
by Jean-Marc Liotier
@ 2021-05-28 17:03
12021-06-02 00:05Bert Araali
♦98
You deleted a still existing building, Biryani House garage in the garden. It is hardly visible in latest imagery since overgrown by trees and was incorrectly aligned. Corrected it in changeset 105702922. Please stop deleting buildings in case of the slightest doubt and contact mapper of the origina...
105491474
by Jean-Marc Liotier
@ 2021-05-28 12:20
12021-06-01 22:18Bert Araali
♦98
Hello Jean-Marc, created a new calibration point in changeset #105700682. Roundabout on the Northern Bypass (find it in the Imagry Offset Database). I stopped storing offsets since they are only applicable for a specific source and for a limited time since imagery gets updated. Buildings and most ...
102805491
by Jean-Marc Liotier
@ 2021-04-12 12:53
12021-05-03 13:22Bert Araali
♦98
Hello Jean-Marc. Thank you for mapping a missing wetland in Uganda. Kindly make some improvements so we keep our wetlands data significant and of high quality. The wetland should intially be mapped as a boundary, a protected_area with protect_class=15. The reason is that all of them are governme...
22021-05-03 21:14Jean-Marc Liotier Is this definition of wetland foremost an administrative one ? How should wetlands that are not protected_area be tagged ? Or are all wetlands in Uganda considered protected_area by Ugandan legislation ?
32021-05-03 22:35Bert Araali
♦98
No not administrative. All wetlands are government land by law, as well as lakes, rivers etc... The boundaries are never gazetted however, even government violates them, but when it comes to protection and eviction reference can go back to aerial imagery as far as 20 years. WHole wetlands are no lon...
103989945
by Jean-Marc Liotier
@ 2021-05-02 11:18
12021-05-03 18:02Bert Araali
♦98
Reverted because of deletions of urban trees, not justified. Most changes recovered like correct use of wikipedia tag. Squared some buildings and resolved overlaps with landuse.
22021-05-03 21:35Jean-Marc Liotier Take a look at the Osmose "tree intersects with building" - there are quite a few in Kampala. Also, so many false trees that I usually filter them out and don't even bother.
32021-05-03 22:15Bert Araali
♦98
Might be, so what is the problem moving the tree instead of deleting it. If it's cut then its very important to know because these are large trees and a stub or the roots might still be there, and will remain there for the next 50 years as we have many hardwood trees, in many cases protected b...
104010085
by Jean-Marc Liotier
@ 2021-05-02 19:35
12021-05-03 15:20Bert Araali
♦98
Too much deletions, not justified according your source. No consent from the local community. Please revert , don't delete but correct and use lifecycle tagging for demolished buildings.
22021-05-03 21:29Jean-Marc Liotier Lifecycle tagging would make sense for buildings that still exist, even in trace form. I agree that it would be applicable to some ruins here that while no longer buildings are not entirely removed from all physical existence either - I'll consider that.

As for correcting erroneous buildings...
32021-05-03 21:32Jean-Marc Liotier If you can add instances of buildings that you think I may have erroneously deleted, please pass their identifiers - I would like to take a look to improve my mapping.
42021-05-03 22:03Bert Araali
♦98
It is not about economical mapping, it's about respect for what other mapper try to achieve, even if it looks terrible. Maybe they just want to map "there is abuilding there" or in the instance when they were surveying not able to access convenient mapping tools. Deletions in most ca...
104010329
by Jean-Marc Liotier
@ 2021-05-02 19:42
12021-05-03 15:16Bert Araali
♦98
In this case true, agreed, much appreciated improvement.
104012740
by Jean-Marc Liotier
@ 2021-05-02 21:07
12021-05-03 15:08Bert Araali
♦98
Jean-Marc, another kind request, please stop the deletions. I checked this changeset and although some are justified, as trucks on truck parkings should not be mapped as buildings, you keep on deleting poor quality buildings, especially from HOTOSM projects, some of them still ongoing and waiting fo...
103976306
by Jean-Marc Liotier
@ 2021-05-01 23:21
12021-05-03 02:55Bert Araali
♦98
Hello, unfortunately I needed to revert this changeset:
- building deletions based on incorrect source reference. We concluded this because you deleted multiple buildings from a tea factory, which is still shown in Esri imagery and BING, back to 2019, however not on Maxar, dated 2020. So reference...
22021-05-03 04:29Jean-Marc Liotier Sorry for the tea factory mistake. Can you link to it so I'll have a look ? I have noticed that outside of Kampala (can't remember if along the Fort Portal Road or the Nansana-Busunju Road) the ESRI imagery at high zoom level is older than within the city - so I may have erred that same wa...
103074489
by Jean-Marc Liotier
@ 2021-04-16 17:42
12021-05-01 03:42Bert Araali
♦98
Hello Jean-Marc, what is the intend of this super-relation ? It conflicts with the local situation on the ground, local mapping practices and I fear it is going to increase the already heated land conflicts in our Capital. Kampla, neither any other Ugandan city is a unified residential zone. We ar...
22021-05-01 12:30Jean-Marc Liotier You mean https://www.openstreetmap.org/relation/12571016 ? This is standard practice everywhere - look at Conakry here: https://www.openstreetmap.org/#map=12/9.6143/-13.5630 - or anywhere else really. Yes, it is the norm in Paris too: https://www.openstreetmap.org/relation/1988489, https://www.opens...
32021-05-01 13:34Bert Araali
♦98
Yes, I do mean https://www.openstreetmap.org/relation/12571016. You focus on single phrases in a guideline. The wiki is a guideline, not a rule or necessarily reflecting "common use" of OSM. Landuse is used differently across the world, in some countries on a macro scale, in some on a mirc...
42021-05-01 14:31Jean-Marc Liotier The logic I was following is the mapping of the built-up area of the agglomeration, so independently of administrative boundaries (which I usually filter out in JOSM - because I have no information about them, so I don't touch them). Aligning residential areas with administrative boundaries is ...
52021-05-02 13:17Bert Araali
♦98
I wouldn't call the lack of landuse tagging in Kampala and UG at large troubling. It's a next step in establishing more details on base maps, the local community with the help of other OSM users and groups is working hard to improve it. Groups include the UN mappers, HOTOSM, youthmappers a...
62021-05-02 20:50Jean-Marc Liotier I agree on the difficulty of maintaining relations with large number of members. Even when relation is necessary, breaking it into more relation with fewer members and better locality is more manageable.

Regarding the relationship between fine-grained landuse=* and extensive ones, in Openstreetma...
72021-05-03 03:51Bert Araali
♦98
They are in conflict with one basic Good Practice of OSM: One feature one tag. I don't care so much about renderers, sure they can be creative and anticipate on incorrect mapping. For other data consumers this is a huge problem though, they find overlapping identical landuse and are not able ...
93655023
by Jean-Marc Liotier
@ 2020-11-06 09:56
12020-11-07 22:13Greg_Rose
♦176
Looks like we were editing the same area...
22020-11-09 09:17Jean-Marc Liotier Indeed - and that cost me a handful of conflicts... As I'm usually alone in the areas I edit, I have very the bad habit of committing large changesets.
67704472
by Jean-Marc Liotier
@ 2019-03-02 01:26
12020-11-04 21:30Greg_Rose
♦176
Salut!
re: Node 1051051796 https://www.openstreetmap.org/node/1051051796
This is a crash SITE from 1983 - if there is a memorial there, fine - but I'm not on the ground to confirm that. But I think the "ruins" can be removed without a ground survey. Would you agree?
22020-11-04 21:59Jean-Marc Liotier Might be https://www.baaa-acro.com/crash/crash-de-havilland-dhc-6-twin-otter-300-bamako-7-killed but the place name it mentions for the crash site is "Niéla" which I can't find. I'll try talk-ml@osm if it rings any bell there !
32020-11-04 22:03Jean-Marc Liotier Oups, you mentioned the same URL in the note - sorry !
42020-11-04 22:09Greg_Rose
♦176
It's okay! We're obviously on the same page mentally. Love the work you've done on Bamako - it certainly has needed it.
I've been placing settlement names throughout Kati and Koulikoro cercles, but I don't have good data for Bamako city, so I'm largely leaving it alone...
52020-11-04 22:19Jean-Marc Liotier Thanks - it is nice to meet fellow local contributors !
62020-11-04 22:20Jean-Marc Liotier The discussion on the mailing list: https://lists.openstreetmap.org/pipermail/talk-ml/2020-November/000253.html
72020-11-04 23:56Greg_Rose
♦176
I don't intend to mislead you - so I'll confess that I am NOT local to Mali. I'm armchair mapping from the US.
82020-11-06 11:19Jean-Marc Liotier Last time I was in Bamako was 2016. All of the heavy lift is done remotely - except the buildings, which I won't comment on.
83991444
by Jean-Marc Liotier
@ 2020-04-23 09:37
12020-05-10 14:00Carto'Cité
♦1,143
Bonjour Jean-Marc,
J'ai regardé tes contributions sur les aménagements cyclables et piétons et j'ai vu que tu avais fait un peu de travail de nettoyage de tag excessif ou redondant. Merci :)
Je pense que dans la foulée tu as supprimés quelques tags qui ...
22020-05-10 14:19Carto'Cité
♦1,143
Je crois qu'il y a aussi quelque footway=sidewalk qui ont sauté sans que ce soit justifié à mon avis. J'imagine que c'est une tentative de sélection des clés footway sur des highway=footway qui a pu provoqué ça mais n'hésite...
32020-05-10 14:22Jean-Marc Liotier Hello, merci pour les remarques - malgré mon expérience ailleurs, j'ai certainement des lacunes concernant le grain fin des footway. Je croyais que l'intersection d'un footway avec un highway automobile se représentait par un noeud highway=crossing - alors le foot...
42020-05-10 15:02Carto'Cité
♦1,143
Merci pour ton retour :)
Effectivement les passages piéton peuvent aussi se décrire en linéaire. C'est relativement utile avec la généralisation des descriptions des cheminements piétons.
À bientôt.
Charles
67719095
by Jean-Marc Liotier
@ 2019-03-02 17:24
12019-06-03 17:14Palolo
♦457
You adjusted a road which then intersected a building. Please be careful in the future.
22019-06-03 17:17Jean-Marc Liotier What way are you referring to ? What imagery are you using ? What imagery was the building aligned on ?
32019-06-03 17:31Palolo
♦457
I fixed the alignment to Digital Globe Premium. https://www.openstreetmap.org/changeset/70893922
42019-06-03 18:50Jean-Marc Liotier Well, my changeset was aligned on Bing. Also, I usually work with buildings filtered out because the buildings (particularly the ones added by HOT volunteers) are usually of such horrendously bad quality that I only take them into account if I am in a particularly charitable mood (apart for mass-del...
67780531
by Jean-Marc Liotier
@ 2019-03-04 20:02
12019-03-08 16:51Basstoelpel
♦368
Hi Jean-MArc,


I can see in https://www.openstreetmap.org/way/202278437
only a substation, not a power plant. Do you have any knowledge that this in fact is an oil fired power plant?

Baßtölpel
22019-03-08 17:13Jean-Marc Liotier I just removed the "water-pumped-storage" which was extremely ridiculous. From imagery and considering location, it is extremely unlikely that it is a power plant and I have found no trace of one existing downtown Thiès. I would conclude that it is only a substation, but I did not d...
67725924
by Jean-Marc Liotier
@ 2019-03-02 23:39
12019-03-02 23:52Jean-Marc Liotier Source actually ESRI.
---

Published using OSMCha: https://osmcha.mapbox.com/changesets/67725924
67718474
by Jean-Marc Liotier
@ 2019-03-02 17:01
12019-03-02 17:25Jean-Marc Liotier Source is actually Bing... ESRI is good for Bamako but Bing is better here.
67701346
by Jean-Marc Liotier
@ 2019-03-01 21:49
12019-03-01 21:51Jean-Marc Liotier Damn, wrong commit comment... This corrects https://www.openstreetmap.org/changeset/67700148
67231116
by Jean-Marc Liotier
@ 2019-02-15 15:56
12019-02-15 15:59Jean-Marc Liotier Actually ESRI World (clarified) orbital imagery - sorry.
66158580
by Jean-Marc Liotier
@ 2019-01-09 11:29
12019-01-11 10:22mueschel
♦6,589
Hi,
could you check this building?
https://www.openstreetmap.org/way/350571672
The tag "MINUS = government" looks like a mistake.

Jan
22019-01-12 13:15Jean-Marc Liotier Indeed - 99% sure it is MINUSMA. I'll check with a local.
32019-01-12 13:22Jean-Marc Liotier Fixed in https://www.openstreetmap.org/changeset/66250484
63091840
by Jean-Marc Liotier
@ 2018-10-01 11:49
12018-10-01 13:10Jean-Marc Liotier Looks like I inadvertently displaced a lot of nodes... Now reverting !
---

Published using OSMCha: https://osmcha.mapbox.com/changesets/63091840
22018-10-01 13:22Jean-Marc Liotier Reverted... https://www.openstreetmap.org/changeset/63094495
60666019
by Jean-Marc Liotier
@ 2018-07-12 21:36
12018-07-13 08:50Jean-Marc Liotier Qu'est-ce que je raconte... 2015, pas 1995 !
60664285
by Jean-Marc Liotier
@ 2018-07-12 20:14
12018-07-12 21:15Jean-Marc Liotier I definitely should have done the landuse=residential overhaul separately from the gardening and weeds patrol. Also, this one a bit too much to swallow in one go. I'm glad it is done - now let's check quality !
37756547
by Jean-Marc Liotier
@ 2016-03-11 10:56
12018-01-02 14:41edvac
♦221
Hi, Jean-Marc:

You say you have used government data, so that looks at a first glance an import.
Have you discussed this with the local OSM community and the imports list?
22018-01-02 15:15Jean-Marc Liotier I have discussed it in private with a few persons interested in Senegal's Openstreetmap data - the most active of which are not located in Senegal (getting any sort of feedback is a challenge - especially online, even though I have met contributors personally in Dakar) - responses have been pos...
32018-01-02 19:59edvac
♦221
Hi, Jean-Marc. In fact I see a lot of very good work in that. But my concern is about that you are using external data to integrate/conflate it with OSM data, and that makes it actually an import, so you should follow the import guidelines for that.
Among other things, I doubt the license is compa...
42018-01-03 00:31Jean-Marc Liotier At least one the people who helped Senegal deploy this geographic information publishing portal is a well known Openstreetmap contributors and you can bet that he had a hand in the licensing. The paragraphs of interest to us is: "le Sénégal octroie au Détenteur de licence u...
52018-01-03 00:45Jean-Marc Liotier To ensure peace of mind for Openstreetmap, we are going to check the compatibility of the license with the ODbL as interpretation of other clause may raise issues. I'll keep you posted.
51227771
by Jean-Marc Liotier
@ 2017-08-18 09:43
12017-08-18 09:45Jean-Marc Liotier I was so pissed off that I forgot to mention that the initial purpose of that commit was to fix a few Osmose errors...
47212778
by Jean-Marc Liotier
@ 2017-03-27 21:10
12017-03-27 21:12Jean-Marc Liotier Link to the culprit: http://www.openstreetmap.org/changeset/37672333
42476301
by Jean-Marc Liotier
@ 2016-09-27 17:57
12016-09-27 20:17n76
♦60
Next time you might want to want to have your commit comment say you are correcting the spelling of the healthcare:speciality tag.

For those who watch areas we are interested in for changes, seeing a change set that covers a large part of the world with the comment "obvious tagging typos&quo...
22016-09-27 20:53Jean-Marc Liotier Yes, you are right. Sorry - I'll be more precise next time.
7469174
by Jean-Marc Liotier
@ 2011-03-06 00:16
12016-08-07 00:12gendy54
♦588
Bonjour Jean-Marc,

Je suis passé par là: https://www.openstreetmap.org/changeset/7469174#map=18/48.89302/2.24572
C'est un peu le bordel au niveau des voies. Sais-tu ce qui s'est passé.
Donat
39195868
by Jean-Marc Liotier
@ 2016-05-09 07:43
12016-05-09 18:02Jean-Marc Liotier Interrupted by https://twitter.com/OSM_Tech/status/729582996685213696 - I'll resume commiting tonight
22016-05-09 19:10Jean-Marc Liotier Continued at http://www.openstreetmap.org/changeset/39197330
37761751
by Jean-Marc Liotier
@ 2016-03-11 14:59
12016-03-11 19:20Jean-Marc Liotier After repeatedly uploading due to network failure, I made a big mess of duplicated objects... I'll clean it up - but not tonight... Give me a few days of patience... Sorry !
22016-03-14 09:15Jean-Marc Liotier No duplicates after all... Looks like after the connection drop on upload, duplicate objects were created locally but not on the server... What a big relief ! I'm still going to be on my toes next time...
37767240
by Jean-Marc Liotier
@ 2016-03-11 18:01
12016-03-11 19:20Jean-Marc Liotier After repeatedly uploading due to network failure, I made a big mess of duplicated objects... I'll clean it up - but not tonight... Give me a few days of patience... Sorry !
22016-03-14 09:15Jean-Marc Liotier No duplicates after all... Looks like after the connection drop on upload, duplicate objects were created locally but not on the server... What a big relief ! I'm still going to be on my toes next time...
37767643
by Jean-Marc Liotier
@ 2016-03-11 18:15
12016-03-11 19:20Jean-Marc Liotier After repeatedly uploading due to network failure, I made a big mess of duplicated objects... I'll clean it up - but not tonight... Give me a few days of patience... Sorry !
22016-03-14 09:15Jean-Marc Liotier No duplicates after all... Looks like after the connection drop on upload, duplicate objects were created locally but not on the server... What a big relief ! I'm still going to be on my toes next time...
37769414
by Jean-Marc Liotier
@ 2016-03-11 19:13
12016-03-11 19:20Jean-Marc Liotier After repeatedly uploading due to network failure, I made a big mess of duplicated objects... I'll clean it up - but not tonight... Give me a few days of patience... Sorry !
22016-03-14 09:15Jean-Marc Liotier No duplicates after all... Looks like after the connection drop on upload, duplicate objects were created locally but not on the server... What a big relief ! I'm still going to be on my toes next time...
37683131
by Jean-Marc Liotier
@ 2016-03-08 10:14
12016-03-08 10:15Jean-Marc Liotier Corrections effectuées dans http://www.openstreetmap.org/changeset/37683131
37433399
by Jean-Marc Liotier
@ 2016-02-25 11:55
12016-02-27 11:23Jean-Marc Liotier Commentaire de test pour la formation
37228023
by Jean-Marc Liotier
@ 2016-02-15 16:16
12016-02-15 16:34Jean-Marc Liotier I'm certainly going to split this one with a landuse=harbour area for the Port Autonome de Dakar.
22016-02-15 16:35Jean-Marc Liotier Cf. http://www.portdakar.sn/images/stories/design/plangeneral.pdf pour le nom des môles du Port Autonome.
32016-02-16 22:22Jean-Marc Liotier Split done: http://www.openstreetmap.org/changeset/37256532 & http://www.openstreetmap.org/changeset/37256093 - still a lot more details to add.
33293663
by Jean-Marc Liotier
@ 2015-08-12 14:57
12015-12-01 09:41alexz3
♦3
PEOPLE LIKE YOU WHO GO AROUND DELETING THINGS THEY DON'T UNDERSTAND HAVE NO PLACE ON OSM.
22015-12-01 09:46Jean-Marc Liotier Yes, I don't understand how this way could in any imaginable have been sourced from Microsoft Bing since it is nos visible on Microsoft Bing. If I am wrong, please do enlighten me !
32015-12-01 09:47Jean-Marc Liotier Yes, I don't understand how this way could in any imaginable way have been sourced from Microsoft Bing since it is not visible on Microsoft Bing. If I am wrong, please do enlighten me !
33935314
by Jean-Marc Liotier
@ 2015-09-10 14:46
12015-09-10 18:07Jean-Marc Liotier Catastrophe... The upload failed, I retried and I massively created duplicate nodes. I'll clean that up tomorrow... Sorry for the disturbance.
22015-09-10 18:29Jean-Marc Liotier Cleaned up by http://www.openstreetmap.org/changeset/33940041 - no one noticed... Pfiouh !
33783154
by Jean-Marc Liotier
@ 2015-09-03 21:47
12015-09-03 21:59lepau
♦2
ok merci pour les corrections
22015-09-03 22:02Jean-Marc Liotier N'hésites pas à demander si tu as d'autres questions !