19/03/2026-25/03/2026 [1] OSM on an eInk display | © Héctor Satrústegui | map data © by OpenStreetMap Contributors. Mapping Two proposals are waiting for your comments: The cable_landing_station=* proposal to map landing points of submarine cables. The highway=safari_service_road proposal to describe specific service roads in safari parks. The proposal flashing_lights=* is still open for
13 hours ago
19/03/2026-25/03/2026
♦
[1] OSM on an eInk display | © Héctor Satrústegui | map data © by OpenStreetMap Contributors.
Mapping
- Two proposals are waiting for your comments:
- The
cable_landing_station=* proposal to map landing points of submarine cables.
- The
highway=safari_service_road proposal to describe specific service roads in safari parks.
- The proposal
flashing_lights=* is still open for voting. The proposal intends to indicate the precise design of flashing lights.
Mapping campaigns
- Following the Morshansk online map party ♦►♦ in 2025, the Russian community is organising another online map party ♦►♦ from 29 March to 11 April. The community will be working to eliminate one of the last major blank spots on the map: the Kunyinsky District of the Pskov Region. This year’s innovation is a new tool ♦ for coordinating zones during collaborative mapping, written specifically for this event. We invite everyone to participate, both beginners and experienced participants!
Community
- In the sharply worded, normatively charged, and at times speculative opinion essay ‘The City in the Data Lab’, mobileGEO offered ♦ an activist analysis of OpenStreetMap as an increasingly central digital infrastructure used for routing, research, and humanitarian missions, among other things. At the same time, they addressed the dependence on a small number of volunteers in core areas, such as server operations and software, as well as issues of governance and data equity.
- A forum post discussed introducing new tools for discussions on the OSM Wiki, including the MediaWiki DiscussionTools extension already used on Wikimedia projects. The aim is to provide more structured commenting and improve participation, with implementation currently being discussed as an Operations Working Group issue.
- Christian Quest announced the creation of the Panoramax Foundation to establish an open source platform for georeferenced street level imagery. The foundation is to be launched as a non-profit organisation and will be supported by partners such as the INRIA Foundation and IGN France. Its aim is to promote decentralised server structures, establish a global meta-catalogue, and strengthen cooperation between authorities, companies and NGOs. Members can actively shape technical development and governance (via the GeoCommuns Forum).
- In a blog post by the ‘OSM Verkehrswende’ initiative, Tobias Jordans explained ♦►♦ that Panoramax requires additional infrastructure and coordination. The goal is to further expand this open-source alternative to commercial services and promote its use for mapping, traffic planning, and data analysis.
- Marina Petkova wrote ♦►♦ about the release of the guide OpenStreetMap et territoires (OpenStreetMap and territories), produced by the Fédération des pros d’OSM. The video record of the session can be watched ♦ online. There is also a publication ♦ about the ODbL titled Tout savoir sur la license ODbL.
OpenStreetMap Foundation
- The OpenStreetMap Foundation Board has approved a new contractor to revamp the GNSS traces feature on the OpenStreetMap website, aimed at renewing the infrastructure for GNSS traces and complying with privacy regulations. The payment comes from the Sovereign Tech Fund, and the rate has been discussed with the Personnel Committee and Core Software Development Facilitator.
Local chapter news
- OpenStreetMap US announced the release of the Pedestrian Working Group Schema 1.0, defining a tiered tagging system for mapping pedestrian infrastructure. The schema provides detailed guidelines for features such as pavements, crossings, and kerbs, aiming to support use cases from basic navigation to accessibility-focused routing applications.
Events
- The FOSSGIS 2026 presentations are available ♦ online.
Maps
- Mlvln described his workflow for a Berlin streetscape map using
area=highway data. He combined QGIS with the Overpass API, but switched to Geofabrik’s OSM extracts after his computer could no longer process the raw data. Using Osmose and Python scripts, he filtered tags such as surface=asphalt or amenity=waste_basket and converted HStore fields for visualisation. His goal: a zoom level-dependent tile map – but hosting and regular updates remain open problems.
- Henri97 introduced the portal-streuobst.de ♦►♦, a new map designed to support the mapping and analysis of orchard meadows based on OpenStreetMap data. The project aims to help validate NABU’s estimate of around 250,000 hectares and encourages community feedback and contributions.
OSM in action
- The Geo3D Library is a central hub for publicly available online 3D geological models. It is maintained by the Polish Geological Institute and the National Fund for Environmental Protection and Water Management. It includes OpenStreetMap, Carto Light and OpenTopoMap as basemaps.
Open Data
- Qi Zhou and others have published an open dataset of inland docks along the Yangtze River based on OpenStreetMap data and high-resolution satellite imagery. Using YOLO models they detected 3,562 docks with high accuracy and provided the results as bounding boxes and polygon geometries for further analysis.
Software
- A new security report highlighted CVE‑2026‑2580, affecting the WP Maps – Store Locator WordPress plugin by Flipper Code, which is used with OpenStreetMap, Google Maps, and Mapbox. The issue allows outsiders to access sensitive website data on sites running plugin versions up to 4.9.1, so site owners and developers are encouraged to update and review their map setups promptly.
- [1] Héctor Satrústegui explained how to optimise OpenStreetMap tiles for eInk devices such as Meshtastic or Meshcore. The approach uses Maperitive to generate tiles and a Python script to convert them into greyscale or black-and-white formats, improving performance and usability on low-resource hardware.
- The new iD tagging schema release v6.15.0 includes
sidewalk= as a road property, multiple new icons (building under construction, covered reservoir, honey shop and more), animal=horse_walker was added, shop=butcher and other recovered their fields, making it easier to find many objects, and the deprecation of landuse=basin was stopped.
Programming
- d0min0 introduced Drakkar.one, an embeddable map widget that works without API keys, cookies, or Google services. It uses OpenStreetMap data and serves vector tiles as PMTiles via Cloudflare infrastructure, offering a low-cost and privacy-focused alternative to Google Maps embeds.
- Pascal Neis outlined a custom processing pipeline to analyse the full OpenStreetMap planet and generate vector tiles. The approach considers historical object versions and prepares the data for efficient visualisation and analysis workflows.
- The Infra Plan team released on GitHub
bim-tile-overlay, a JavaScript library that renders map tiles such as aerial imagery or OpenStreetMap beneath 3D BIM models in Autodesk Viewer. It handles coordinate transformations from local model space to WGS84, computes visible tiles in real time, and projects them in sync with the camera view.
- tristanmk introduced Simple Routing, a low-cost routing API service built on OSRM and VROOM, targeting small projects and developers. The platform aims to bridge the gap between limited free APIs and expensive commercial services by providing shared infrastructure with transparent pricing.
- zorun presented a project implementing an OsmAnd plugin that calculates pedestrian routes based on shade coverage to improve comfort in sunny conditions. The plugin relies on custom-generated shade data, and currently works only for Nantes. The diary entry highlighted usability and integration challenges identified during testing.
Releases
- In a blog post the GraphHopper team introduced improvements made to elevation data handling, enabling more accurate slope and distance calculations. These enhancements particularly benefit use cases such as cycling and hiking routing, where precise elevation profiles are essential.
- The developers of Vespucci released version 22 beta, introducing numerous bug fixes and stability improvements, including handling of Overpass queries, uploads, and UI behaviour. The update also added features such as enhanced tag filtering, image upload support, and improvements to changeset tagging.
- The iD team released version 2.39.0, introducing improvements such as expanded recently used presets, clearer validation messages, and enhanced geometry editing. This release also included multiple bug fixes, updates for street-level imagery, and technical modernisations in the codebase.
Other “geo” things
- Apple has announced plans to introduce advertising in Apple Maps, allowing businesses to pay for promoted placements in search results and recommendations. Advertisements will be clearly labelled and, according to Apple, not linked to personal user data, as part of a broader expansion of its advertising business.
- In their paper ‘Bench marks of change’, Catherine Porter, Margaret O’Sullivan and Elizabeth Gabbett analysed the survival and loss of Ordnance Survey benchmarks in County Limerick, Ireland. Using GIS, historical cartography, and participatory methods, the study finds that over 90% of these historic survey marks are no longer visible and interprets their disappearance as an indicator of broader landscape and environmental change.
- Chronotrains is a Web map which shows how far you can travel by train, from a specific city, for example Berlin. You can select a European city and specify the travel time.
- The EO Glossary of Terms and Definitions serves as a reference for everyone involved in Earth Observation. It covers a wide range of terms, concepts, and definitions relevant to EO disciplines including remote sensing, satellite imagery, geospatial analysis, calibration and validation, climate adaptation, and more. It includes more than 30 recognised databases and you can see a graph with the hierarchy involving the terms.
- The Guardian published a video about how Google Maps search algorithms shape the types of restaurants people find and frequent.
Upcoming Events
Country
Where
Venue
What
When
♦
Chemnitz
Neues Hörsaalgebäude, TU Chemnitz
Chemnitzer Linux-Tage 2026 ♦
2026-03-28 – 2026-03-29
♦
Online
Псковская картопати 2026 ♦
2026-03-29 – 2026-04-11
♦
Hannover
Kuriosum
OSM-Stammtisch Hannover ♦
2026-03-30
♦
Saint-Étienne
Zoomacom
Rencontre Saint-Étienne et sud Loire ♦
2026-03-30
♦
San Jose
Online
South Bay Map Night ♦
2026-03-31
♦
Stuttgart
Stuttgart
Stuttgarter OpenStreetMap-Treffen ♦
2026-04-01
♦
Le Schmilblick, Montrouge
Réunion des contributeurs de Montrouge et du Sud de Paris ♦
2026-04-02
♦
नई दिल्ली
Jitsi Meet (online)
OSM India – Monthly Online Mapathon ♦
2026-04-04
♦
Lucknow
Café Coffee Day, Hazratganj
OSM Lucknow Mapping Party No.3 ♦
2026-04-05
♦
Zaragoza
Facultad de Filosofía y Letras (Unizar) & online
Mapatón humanitario ♦
2026-04-07
♦
Salzburg
Bewohnerservice Elisabeth-Vorstadt
OSM-Treffpunkt ♦
2026-04-07
Missing Maps London: (Online) Mapathon [eng] ♦
2026-04-07
iD Community Chat ♦
2026-04-08
♦
Essen
Verkehrs- und Umweltzentrum
Essen OSM-Treffen ♦
2026-04-08
♦
Zürich
Bitwäscherei Zürich
186. OSM-Stammtisch Zürich ♦
2026-04-10
♦
Paris
MSF France (Paris 19e), France
MSF-CARTONG: Nuit de la Géographie ♦
2026-04-10
♦
Berlin
Wikimedia e.V. Tempelhofer Ufer 23-24,10963 Berlin
OSM Hackweekend Berlin-Brandenburg 04/2026 ♦
2026-04-11 – 2026-04-12
♦
Braunschweig
Stratum 0
Braunschweiger Mappertreffen im Stratum 0 Hackerspace ♦
2026-04-11
♦
Armadale Park Cafe
Social Mapping Sunday: Armadale Train Station ♦
2026-04-12
♦
Milano
Editathon e mapathon alla Milano Marathon 2026 ♦
2026-04-12
♦
Antwerpen
Camera’s in kaart brengen ♦
2026-04-12
♦
København
Cafe Bevar’s
OSMmapperCPH ♦
2026-04-12
♦
Meerut
Haldiram’s, Garh Road, Meerut
OSM Delhi Mapping Party No.28 (Meerut) ♦
2026-04-12
Missing Maps : Mapathon en ligne – CartONG [fr] ♦
2026-04-13
♦
臺北市
MozSpace Taipei
OpenStreetMap x Wikidata Taipei #87 ♦
2026-04-13
Note:
If you like to see your event here, please put it into the OSM calendar. Only data which is there, will appear in weeklyOSM.
This weeklyOSM was produced by MarcoR, MatthiasMatthias, PierZen, Raquel IVIDES DATA, Strubbl, Andrew Davidson, barefootstache, derFred, izen57, mcliquid.
We welcome link suggestions for the next issue via this form and look forward to your contributions.
13 hours ago
♦
Yesterday, I attended the OpenStreetMap Local Chapters and Communities Congress 2026 online.
There were at least 15 participants who signed the attendance list on the event’s HackMD document, representing a range of countries including the Philippines, Italy, the United States, Canada, Greece, Indonesia, Belgium, Kenya, and Brazil. The document is available publicly here.
17 hours ago
♦
Yesterday, I attended the OpenStreetMap Local Chapters and Communities Congress 2026 online.
There were at least 15 participants who signed the attendance list on the event’s HackMD document, representing a range of countries including the Philippines, Italy, the United States, Canada, Greece, Indonesia, Belgium, Kenya, and Brazil. The document is available publicly here.
After introductions and updates from the OpenStreetMap Foundation Board, the session moved into a group discussion titled “Challenges in OpenStreetMap and overcoming those challenges.” This discussion was conducted through Mentimeter, allowing participants to submit anonymous responses to guided questions.
Here is a (selected) summary of the discussion results:
Question 1 : If a new mapper asked you “what’s the hardest part about being in the OSM community?” what would you say.
“So many smart people. All with their strong opinions about how things should be done.”
“Dealing with abusive community members.”
“Not being demotivated by expert mappers that might yell at them for doing mistakes while mapping.”
“Encountering negative / unproductive discourse in OSM fora, which can discourage participation from new new users.”
“Documentation mostly in English.”
“If you are not already technologically literate, it’s a lot to learn and unclear where to start.”
“No clear entry point. Unclear governance”
“Not easy to know what tools/editors to use.”
“The idea of tagging might be confusing and tools/editors often hide these.”
“Data privacy issues in some structures”
“Security protocols with OSM APIs”
“Hard to explain why OSM is needed when Google Maps, Waze and Apple Maps already exist”
Question 2 : What makes it hard to grow or sustain your local community?
“Lack of time.”
“There’s not enough experienced mappers to help newbies and grow the community.”
“Most members from the community prefer money-yielding activities and the idea of volunteer driven initiatives are not so welcomed.”
“The distributed nature of the work can make it hard to reach out to people in the region. I feel we could have better integrated tool to talk to local mappers directly.”
“Lack of funds to organise events and projects”
“Even in English, it’s difficult to find good resources like tutorials for getting people started with mapping.”
“Even small disagreements could lead to long-term bad blood and resentment.”
Question 3 : Is there a gap between the global OSM and your local reality? Where do you feel it?
“Yes. In tagging practices. How to adapt it to the local reality.”
“People are drawn to local and immediate concerns by default and it’s hard to make people excited about global concerns.”
“Core infra needs work and innovation. We need more transparency and openness to community input. Local communities need to shape our shared website.”
“The people who are affected by the gap might not be present at this meeting.”
Question 4 : What support do you wish the OSMF or the wider community provided but doesn’t?
“Money!”
“Appreciation”
“Clear leadership”
“Technological support and timely communication. All effort and local chapters should be accredited.”
“A mix of more formal and informal meetups. From “let’s hear a presentation about this person’s mapping project” to “let’s meet at a bar and hang out as friends”
Question 5 : What are ways you get your community together?
“Daily communication via chat makes us feel close between bigger events.”
“Our annual event. But not all mappers attend.”
“Annual SOTMUS”
“This really requires a core group of active people to get the ball rolling.”
“Telegram groups. Contacting key people one by one through personal chats or email”
Question 6 : What ideas do you have to help grow and sustain OSM?”
“OSMF should hire an executive director / CEO.”
“Clear point of contact for each working group.”
“Local panoramax instances”
“OSM US working on a learning sandbox for new mappers.”
“Introduce the concept of a ‘local fork’, where people can map and document their work in a private space, outside the OSM main database. Build an entirely new geodata crowdsourcing platform on top of the OSM main database, focusing on personalized activities, viewpoints and perspective. The downside of a wiki is that everyone is forced to adhere to a single set of rules. This alternative would instead celebrate diversity”
“Be that positive person on the interwebs! Just a simple ‘Thank you for that question’ / ‘Thank you for editing the map!’ goes a long long way towards the sustainability of the volunteer community”
“An online documentary of successful works used for greater global good. e.g. flood mapping data used by rescue organizations in critical situation.”
“Opportunities to realize paid partnership”
“Communication with local residents for communal mapping of basic infrastructure and services, led through attending town halls meeting.”
17 hours ago
Vuoden 2025 lämpimällä kaudella tuli tehtyä 3 tarkoituksellista
kartoitusprojektia eri vaiheissa, joista osa liittyi uusien
pyöräpysäköintialueiden etsintään ja osa oli ihan puhdasta
StreetCompleten ja
Wandrerin pisteidenkeruuta.
Keväällä ennen vappua tuli käytyä seuraavat paikat läpi
pyöräpysäköintipaikkojen toivossa:
- Sairaalat ja terveyskeskukset.
- Urheiluhall
a day ago
Vuoden 2025 lämpimällä kaudella tuli tehtyä 3 tarkoituksellista
kartoitusprojektia eri vaiheissa, joista osa liittyi uusien
pyöräpysäköintialueiden etsintään ja osa oli ihan puhdasta
StreetCompleten ja
Wandrerin pisteidenkeruuta.
Keväällä ennen vappua tuli käytyä seuraavat paikat läpi
pyöräpysäköintipaikkojen toivossa:
- Sairaalat ja terveyskeskukset.
- Urheiluhallit.
- Päivittäistavarakaupat (marketit ja supermarketit).
Näissä ideana oli käydä läpi paikkoja, joissa ihmiset
säännönmukaisesti käy ja joissa pyöräpysäköinnille on
kysyntää. Urheilukentät urheiluhallien sijaan olisi vielä
kiinnostavampi aihe pyöräpysäköintien sijaan, mutta en saanut tehtyä
järkevää hakua Overpass
QL:llä,
joka ei olisi samalla tuottanut isoa määrää pieniä puistoja
tulokseksi.
Tämä kun tuli valmiiksi ennen kuin kesä varsinaisesti ehti alkaa, niin
kävin pienen henkilökohtaisen kriisin läpi, että kesäksi suunniteltu
projekti tuli valmiiksi aivan liikaa etuajassa. Joten sitten piti
keksiä jotain muuta tehtävää, jotta motivaatio säilyy ja
StreetComplete onneksi tarjosi sellaista.
StreetCompletesta tehtäviä viihdyttämään
StreetCompletessa olevista
tehtävistä
tuli poimittua vuoden 2025 lämpimälle kaudelle seuraavanlaisia omaan
karttaan:
- Liikennevalojen olemassaolo risteyksissä (Are there traffic signals
that show when to cross here?). Tämä oli kesän ja alkusyksyn
pääprojekti.
- Keskisaarekkeen olemassaolo risteyksissa (Does this crossing have
an island?). Tämä tuli otettua listalle sen jälkeen, kun
liikennevalojen olemassaolo oli saatu kartoitettua.
Keskisaareketietoa en saanut käytyä läpi ennen kuin lämmin kausi
loppui ja sää oli liian kylmä, että olisi pärjännyt ilman hanskoja.
Vuoden 2026 lämpimälle kaudelle otin hoidettavaksi loput
tienylityspaikkojen tietoja kyselevät StreetCompleten
tehtävät. Lisäksi OpenStreetMapissa olevat bussipysäkit tulee
täydennettyä niillä tiedoilla, joita StreetComplete kyselee. Näitä
paikkapisteitä on omassa kartassani tällä hetkellä yli 3000, joten
näissä toivottavasti riittää hommaa ja pyöräilykilometrejä.
StreetCompleten tehtävien tekeminen siirtää OpenStreetMapin päivitystä
pyöräpysäköintialueiden osalta enemmän stokastiseen suuntaan, jossa en
mene enää tiettyyn paikkaan katsomaan, että löytyisikö sieltä
runkolukittavia pyörätelineitä. Vaan tarkkailen ympäristöä
pyörätelineiden varalta samalla kun kuljen näiden
StreetComplete-tehtävien perässä. Ja näiden reittien monipuolisuuden
ansiosta tulee sitten käytyä paikoissa, joihin ei muuten olisi tullut
mieleenkään mennä.
Katujen pintamateriaalit
StreetCompletessa minulla on näkymä käytössä, joka näyttää tiedon
siitä, millainen tienpinta on kyseessä (kuva
1). Käytän tätä pyöräillessä
tarkistaakseni, että vastaako ympäristön tiet sitä, mitä ne
OpenStreetMapin mukaan on. Navigaattorit käyttää jossain määrin tätä
tietoa siinä, että millaisia reittejä painottaa millekin kulkutavalle
ja sen asetuksille. Pyöräillessä tästä on erityisesti hyötyä, kun
kaikki reilusti epätasainen pinta ikävästi tuntuu hampaita
kolisuttavana tärinänä.
♦
Kuva 1: katujen
pintamateriaali korostettuna eri värein.
Luulen, että tämä tienpintojen kartoitus Helsingin kantakaupungissa
alkaa tuottaa tulosta. Olen muutamaan otteeseen huomannut jo
navigaattorin (OsmAnd) asetusten mukaisesti
tosiaan välttelevän katuja, joissa on
nupukiviä ja
ohjaavan kortteleiden kautta, joissa tien pinta on asfalttia. Tämä
näin läskirenkaattomana pyöräilijänä on erinomainen
navigointimukavuutta vähemmän tutuilla alueilla lisäävä tekijä.
Pyöräpysäköintipaikkojen kehitys
Tässä on alkanut huomaamaan, että tutu paikat alkaa toistua
pyöräpysäköintipaikkojen etsimisessä. Lisäksi kun näitä on nyt
muutaman vuoden tullut kartoitettua, niin luonnollisesti uusia
runkolukittavia telineitä ei enää löydy näiltä alueilta niin
helposti. Nyt talven jäljiltä ei ollut kuin noin 30 muiden lisäämää
pyöräpysäköintialuetta, joissa ei ollut paikkojen määrätietoa
saatavilla.
♦
Kuva 2: Pyöräpysäköintipaikkojen kehitys
telinetyypeittäin heinäkuusta 2021 OpenStreetMapin tietokannassa
tarkastelualueella.
Runkolukittavia telineitä luonnollisesti luodaan lisää, kun
huonolaatuiset renkaanväännintelineet korvaantuu saavutettavammilla
laajemman rengasvalikoiman ja runkolukituksen mahdollistavilla
telineillä. Mutta vaikka OpenStreetMapiin kirjattujen telineiden
lukumäärä on jo viisinumeroisissa lukemissa tarkkailemallani alueella,
se ei ole hirveän suuri kun vertaa koko alueen väestöön ja katsoo
millaisia aukkoja jopa Helsingin kantakaupungissa on laadukkaan
pyöräpysäköinnin osalta. Kuva 2 näyttää
teoreettisten pyöräpysäköintipaikkojen kehityksen viimeisen vajaan 5
vuoden ajalta.
Tällä vajaan 100000 teoreettisen kirjatun pyörätelinepaikan alueella on
luokkaa miljoona asukasta. Ja erillisiä alueita on kirjattuna hieman
yli 4500. Luonnollisesti kaikki eivät ole samanaikaiseti pyörillä
liikkeellä ja polkupyörillä on suhteellisen paljon vapauksia sen
suhteen, että minne pysäköidä. Mutta varkausriskivaikutelma on myös
korkea, sillä alle 20 kg painavan polkupyörän saa helposti kannettua
mukanaan. Tämä vähentää intoa pistäytyä paikoissa, joihin ei ole
alunperin ajatellut menevänsä, jos lähellä ei ole sopivaa kiinteää
kohdetta lukita pyörää.
Ideaalitapauksessa tiheämmillä asuin- ja kaupallisen toiminnan
alueilla olisi niin tiheästi runkolukittavia pyörätelineitä, että
jokaisessa korttelista olisi näkyvyys lähimmälle käyttökelpoiselle
runkolukittavalle telineelle. OpenStreetMapin karttadata olisi tällöin
tarpeeton pätevän pysäköintipaikan hakemiseen. Vielä ollaan kaukana
tästä.
a day ago
Ein Spaziergang durch Weißig und Döhlen
Am heutigen Donnerstag machte ich einen meiner vielen Streifzüge durch Döhlen. Besonders ins Visier genommen hatte ich die Streuobstwiese in Freital-Weißig, die mir durch eine Meldung im Freitaler Anzeiger wieder aufgefallen war. Kommend von der Bushaltestelle an der Schulstraße gelangt man über einen Weg zum Zaun der Wiese, wo weiter rechts eine Infotafel
3 days ago
Ein Spaziergang durch Weißig und Döhlen
Am heutigen Donnerstag machte ich einen meiner vielen Streifzüge durch Döhlen. Besonders ins Visier genommen hatte ich die Streuobstwiese in Freital-Weißig, die mir durch eine Meldung im Freitaler Anzeiger wieder aufgefallen war. Kommend von der Bushaltestelle an der Schulstraße gelangt man über einen Weg zum Zaun der Wiese, wo weiter rechts eine Infotafel aufgestellt ist. Da keinerlei Verbotsschilder auffallen, nahm ich die Gelegenheit war, das Tor selbst zu öffnen und auf die Wiese zu gehen. Bei einem früheren Besuch kamen mir viele Schafe entgegen, heute sah ich kein einziges Tier. Negativ viel mir auf, dass sich vom Eigentümer lediglich um die Streuobstwiese gekümmert wird, nicht jedoch um das Gebiet um den Wettingrundweg bis zum Beginn der Böschung auf dem Gelände des Getränkehandels. So ist der Wettingrundweg unpassierbar.
Die Wiese ist glücklicherweise keine Sackgasse, da am oberen Ende des Hanges ein weiteres Tor existiert, durch das man auf das im Süden angrenzende Feld gelangen kann. Von da an ging ich gen Osten zu dem in den Wald führenden Weg. Über eine erst kürzlich entdeckte Schneise gelangte ich wieder in den Wettingrund. Obwohl es Niederschlag gegeben hatte, konnte ich meine zweite Mission, die Kartierung des periodischen Gewässers, nicht fortsetzen, da dessen Verlauf zu verwinkelt ist und kein Wasser zur Nachvollziehung des tatsächlichen Verlaufes floss. Das steht also noch als Ausflugsziel für einen Regentag aus. Um wieder zur Weißiger Straße zu gelangen, schlug ich mich teilweise durchs Niemandsland die Böschung hinauf. An der Bushaltestelle am Mittelweg endete meine heutige Tour.
3 days ago
This text was written by me a couple weeks ago. In the mean time I noticed that my computer struggles with the amount of data to process. That’s why I will need to use another way how to create my map.
Anyway, I did not want to scrap this diary entry. I learned already a lot of things and maybe you are curious about my map, so here it is:
♦
Like this or similar could the map look like.
3 days ago
This text was written by me a couple weeks ago. In the mean time I noticed that my computer struggles with the amount of data to process. That’s why I will need to use another way how to create my map.
Anyway, I did not want to scrap this diary entry. I learned already a lot of things and maybe you are curious about my map, so here it is:
♦
Like this or similar could the map look like. This mock-up was made with the QGIS GUI and OSM data downloaded over the overpass api. bigger resolution here
In this diary post, I want to show you what I am currently working on in my free time, what my motivations and inspirations were for starting the project, and what problems I have encountered. I also want to share what I have learned and what I plan to do with the project in the future.
I was inspired by the map Straßenraumkarte by Supaplex030, which shows micromapping in the urban area of Berlin-Neukölln in great detail. The map visualizes a wide range of different OSM elements such as trees, advertising columns, manhole covers, parking lots, pedestrian and bike paths, Stolpersteine, as well as lanes and their markings.
Unfortunately, the Straßenraumkarte has not been updated in a while. Supaplex030 is currently working on a new version that covers all of Berlin but has not yet been released. Therefore, I thought I would try to render the tags I am interested in myself.
Looking at the map gives me good feedback on whether I have worked correctly or if important tags are still missing, such as the specification of the surface=.
♦
In the upper right corner next to the e-scooter parking lot, the asphalt area is not rendered correctly (the white map background is shining through). The roadway area shown here in light red is missing a surface specification in OSM.
♦
Details such as roadway markings, manhole covers, and trash bins (evaluates colour= and operator=)
So far, I have created the map using Overpass API queries for my neighborhood. However, I want to render the entire city of Berlin. I also aim to reduce my dependency on Overpass, as the servers are overloaded by scrapers. This has opened up a new learning opportunity for me to process OSM extracts (.osm.pbf files).
I started with the roadway areas. After downloading the OSM extract for Berlin from the Geofabrik download server, I run a Python script that saves all objects with the key area:highway into a new file using an Osmose command. I then import this file with another Python script into QGIS and process it there in a semi-automated manner.
Before I can further process the data from the extract as I am used to from the data downloaded via Overpass, I need to use the QGIS tool “Explode Hstore Field.” This tool converts the column other_tags, in which many OSM tags are stored as comma-separated list entries, into separate fields in the attribute table. I’m not so sure why the data is stored like this, if this is a general osm-extract thing or if it’s only like this with the extracts from geofabrik, but I was happy that I could find a solution quickly by searching on the internet.
before:
area:highway
other tags
residential
“surface”=>”sett”,…
secondary
“surface”=>”asphalt”,”junction”=>”yes”,…
…
…
after:
area:highway
surface
junction
…
residential
sett
NULL
…
secondary
asphalt
yes
…
…
…
…
…
In addition to a few other edits, I can already apply my styling (QGIS Layer Style File QML) from the mock up to the highway areas using a script.
♦
All highway areas for Berlin, often still without surface tags. The blue rectangle roughly indicates the previous bounding box of my mock-up map.
I am curious whether my computer will cope with importing more and more data for the entire city into QGIS. The feature count for the area:highway objects is already just below 15,000. The count for other objects will be significantly higher. Fortunately, the data already comes as spatially indexed, which greatly speeds up the processing and display of the objects.
If everything goes as I imagine, I would like to evaluate additional objects that have not yet been rendered in my mock-up and add rules for displaying features only at specific zoom levels. Regular updates of the data should not be too complicated; I will just need to run the Python scripts. Ultimately, I will render tiles of the map. I hope then to find support for hosting and publishing the map, as this is something I have never done and not even an idea where to begin.
♦
Preview: Area around Kottbusser Tor. It renders the subway-platforms on different layers and displays the ref of the subway entrances
Addendum: As written above. I will need to find a better way. Supaplex030 recommended that I take a look at osm2pgsql and PostGIS. Fortunately I just watched todays presentation Setup and update of an OSM-based map with osm2pgsql (on media.ccc.de; German language only) from Mathias Gröbe at FOSSGIS 2026 conference, so I have a good overview where to start.
3 days ago
Yesterday or the day before, Florian contacted me to see could we map hogbacks on OpenStreetMap. Short answer: Yes.
Long answer: Florian and I have spoken at two Digital Humanities conferences about citizen science and mapping and Wikidata and all that craic before, and one of our co-panellists Meagan’s doctoral thesis was about hogbacks. These are very large stones carved into the shape
4 days ago
Yesterday or the day before, Florian contacted me to see could we map hogbacks on OpenStreetMap. Short answer: Yes.
Long answer: Florian and I have spoken at two Digital Humanities conferences about citizen science and mapping and Wikidata and all that craic before, and one of our co-panellists Meagan’s doctoral thesis was about hogbacks. These are very large stones carved into the shape of very likely buildings (longhouses mostly) and date to the 10th to 12th century. They are pretty cool, to be honest. They are called hogbacks, because they also resemble the curved back of a pig, especially, when the carving is very worn and cannot be made out, which is maybe why they called them that back in the 19th century. The Vikings presumably had a far cooler name for them, but they didn’t write that down for us. Those stones were used as grave markers. (I don’t watch any of the Viking Netflix and other series, but maybe they made an appearance? Let me know in the comments - as if this was YouTube.)
Hogbacks survive or are known to have survived (who knows what might still lie undiscovered underground) in Northengland and to a lesser extent and with stylistic differences in Scotland, Cornwall (where they are called “coped stone”). One example each is known in Ireland and Wales.
Following the pattern of ogham stones for which I did go through the proposal process, Florian and I decided that we would go for the tag historic=hogback with the additional subclassification of hogback=coped_stone for the Cornish examples. I made the “executive decision” that we would be the only people mapping them anyway and that the number is so small that a proposal process would be a waste of time. I’m prepared to be judged for that.
♦
It turns out that two had already been mapped, one as a historic=memorial and the other as historic=tomb. So as to not interfere with other people’s tagging, I only added hogback to the values. They are in a way memorials and mark tombs, but they are not tombs themselves, only grave markers, but I’ll give the other mapper the benefit of the doubt. In several cases, they have also been moved (into museums), so they don’t even mark the grave any longer.
In my opinion, they are special enough to deserve their own value, even if there are so few; it would be good to be able to filter for them.
Florian needed all this for a conference (OSM in action!) next week, so I quickly wrote a Wiki page for them: osm.wiki/Tag:historic%3Dhogback.
As of today, it will say that there are none mapped, but that’s because Florian mapped two of them yesterday, when we hadn’t agreed on the tagging scheme.
If I get a chance to go to the one in Ireland, I will make a video. And a 3D scan!
4 days ago
Hello! I made my 1000th edit today which also just so happened to roughly coincide with the 1 year mark of my OSM journey. I have had so much fun learning about OSM and connecting with so many cool members of the community.
I started my work on OSM improving the data in my home town of Wilson Wyoming, which continues to be my main focus, although I have done some smaller projects outside
5 days ago
Hello! I made my 1000th edit today which also just so happened to roughly coincide with the 1 year mark of my OSM journey. I have had so much fun learning about OSM and connecting with so many cool members of the community.
I started my work on OSM improving the data in my home town of Wilson Wyoming, which continues to be my main focus, although I have done some smaller projects outside of this area. It has been so rewarding to watch my work come together to create such a carefully detailed representation of its unique and beautiful geography. Through all this work I have not only deepened my passion for geographic data, I have had the pleasure of developing the understanding necessary to truly comprehend the marvel of the world’s greatest map, the open street map. I couldn’t be happier to be a part of such a remarkable feat of humanity and commendation to our planet.
Speaking of Wilson, I began a series of diary entries early on where I would provide updates for my “Wilson WY data overhaul project”… I have since stopped doing this and kinda wish I could delete them (if you know how to delete them let me know). Anyways, I bring this up because Wilson has served as a kind of playground where I have and continue to develop my process for creating the most useful, high detail, well tagged, good-lookin’ data possible. This unfortunately hasn’t happened without some growing pains if you will. There are many things that I am not super proud of. For example, the fact that Fish creek has 30 versions in its way history, or the many driveways, roads, and ponds that have an absolutely egregious amount of nodes due to my disdain for jagged curves and my proclivity for getting carried away in my endeavour to make every curve pretty. I am a victim to the coastline paradox. However, this is something I believe I have improved on. Anyways, this entry is mostly for my own personal posterity, but if you are reading this, or are interested in the work I have done on OSM please reach out to me. I absolutely love to make connections with other mappers!
5 days ago
Definition
From Wikipedia [2026-03-24] : “A boundary marker, border marker, boundary stone, or border stone is a robust physical marker that identifies the start of a land boundary or the change in a boundary, especially a change in direction of a boundary. There are several other types of named border markers, known as boundary trees, pillars, monuments, obelisks, and corners. Border markers ca
6 days ago
Definition
From Wikipedia [2026-03-24] : “A boundary marker, border marker, boundary stone, or border stone is a robust physical marker that identifies the start of a land boundary or the change in a boundary, especially a change in direction of a boundary. There are several other types of named border markers, known as boundary trees, pillars, monuments, obelisks, and corners. Border markers can also be markers through which a border line runs in a straight line to determine that border. They can also be the markers from which a border marker has been fixed.”
Tagging in OpenStreetMap
Usual tags are:
boundary=marker
collection=yes the marker is a part of the collection of historical markers
format:top=* describes the shape of the marker’s top
format=* describes the shape of the marker
height=* height of the marker
historic=boundary_marker OR
historic=boundary_stone
inscription=* inscriptions on different sides of the marker could be separated by a sign “ “ ( vertical line) or “/” (forward slash)
marker=border_stone
material=*stone, concrete, iron, etc.
moved=yes indicates that the marker is not on its original position
name=*
old_ref=* the (old, changed) number written on the marker
ref=* the number written on the marker
year=#### (year) (or documented tag start_date=*)
Existing sources
Maps
-
Institut cartographique militaire, Carte de Belgique, 1:20 000. [1969]. (historical.osm.be/)
-
Geo.be. Sous les onglets Cartes > Couches > Unités administratives > AdminVector, on peut afficher une carte de Belgique, qui après zoom adéquat, présente outre les limites, des points représentant des bornes. (www.geo.be/)
-
[more to follow]
Archives
The archives contain:
- general maps
- maps specific to boundary marking
- boundary agreements
- minutes of boundary surveys
- minutes of boundary marking
Belgium
- Archives générales du Royaume - Algemeen Rijksarchief
France
On-site surveys
My on-site surveys consist of:
- record of the location with a smartphone
- use of OsmAnd and a specific favorites category
- pictures of the marker from various angles (ideally with directions of the angles)
- record of specific characteristics of the marker
Panoramax
I intend to share the results of my surveys and upload them to the Panoramax database.
6 days ago
TL;DR: I benchmarked my OpenStreetMap processing pipeline (Osmosis → Osmium → Tilemaker) across four machines. Updating the planet takes ~16–21 minutes, while generating worldwide vector tiles (z14) takes between 1h45 and 6h18 depending on hardware and parameters. With tuned Tilemaker parameters and sufficient RAM I was able to reduce tile generation to ~1h45. The Full […]
7 days ago
TL;DR:
I benchmarked my OpenStreetMap processing pipeline (Osmosis → Osmium → Tilemaker) across four machines. Updating the planet takes ~16–21 minutes, while generating worldwide vector tiles (z14) takes between 1h45 and 6h18 depending on hardware and parameters. With tuned Tilemaker parameters and sufficient RAM I was able to reduce tile generation to ~1h45.
The Full Story
Across my various ResultMaps for OpenStreetMap (OSM) contributions, several different tools and data formats appear in my processes and workflows. Since around mid 2024, vector tiles have been part of my setup. Initially, my motivation for learning about them was the idea of providing such tiles in the context of disaster response (for example during the 2023 Türkiye earthquake). Later, however, I started integrating vector tiles directly into several of my quality assurance tools (for example NeisBot in 2024). My goal with this was: A) to reduce the load my services place on the OSM API and B) to become more independent from other sources such as the Overpass API. However, in this blog post I want to share some processing times and show how long different OSM tools take to update and process data on various hardware setups.
Why I Prefer Planet Files Over a Database for OSM Processing
In several of my talks and workshop sessions I often say: the OSM ecosystem provides such good tools for keeping OSM data up to date that my first choice is not a database. Previously I used Osmosis, and currently I rely mostly on Osmium. Both are excellent tools that simply deliver, as you can see later in the timing results of this post. I use Osmosis to download the latest OSM replication changes. After that, I update my planet file and history dump using Osmium. For generating my vector tiles I use Tilemaker.
Setup and Hardware
In total I tested four different machines to represent different hardware configurations. The smallest machine was a Mac Mini (2023) with an M2 Pro processor and 32 GB RAM. The second machine was a Mac Studio (2023) with an M2 Max processor and 96 GB RAM. The third and fourth machines were Ubuntu desktop systems: Ubuntu machine 1 (2024): AMD Ryzen 7965WX, 512 GB RAM, two NVMe drives and Ubuntu machine 2 (2025): AMD Ryzen 9955WX, 256 GB RAM, two NVMe drives. For updating OSM data I use: Osmosis to download replication files and Osmium to update my planet and history planet files. Both Osmosis and Osmium were installed either through distribution packages or compiled from source via GitHub. For my custom worldwide vector tiles I use Tilemaker. This was compiled from the latest GitHub sources on all four machines. My configuration and Lua scripts are almost entirely based on OpenMapTiles [Config] [LUA]. During processing I generate worldwide tiles only for zoom level 14. For my QA/QS workflows this has proven to be a very reasonable compromise between detail and processing effort.
Benchmark Results
Osmosis command to fetch the latest OSM changes: osmosis –rri –wxc changes.osc.gz
Average runtime over seven days:
Mac Mini
Mac Studio
Ubuntu1
Ubuntu2
Seconds
40
45
44
40
Std. Dev.
9
9
8
6
Osmium command to apply changes: osmium apply-changes -v planet-old.osm.pbf changes.osc.gz -o planet.osm.pbf
Average runtime over seven days:
Mac Mini
Mac Studio
Ubuntu1
Ubuntu2
Minutes
21:34
21:32
21:19
16:03
Std. Dev.
9 sec
4 sec
8 sec
2 sec
Tilemaker command to generate vector tiles: tilemaker –shard-stores –store ./store –input ./planet.osm.pbf –config ./my-config.json –process ./my-process.lua –output ./planet.mbtiles
Average runtime over three days:
Mac Mini
Mac Studio
Ubuntu1
Ubuntu2
Hours
06:18
04:09
02:50
03:11
Std. Dev.
2 min
1 min
1 min
1 min
According to the documentation, I could also use the –compact parameter (see Running). However, since I want to include the OSM element IDs in my tiles, this option is currently not suitable for my use case. I also experimented with the number of threads used by Tilemaker. The best results were achieved when setting the number of threads to roughly 50% of the available CPU threads.
Tilemaker using 50% of system threads: tilemaker –thread 24 –shard-stores –store ./store –input ./planet.osm.pbf –config ./my-config.json –process ./my-process.lua –output ./planet.mbtiles
Average runtime over three days:
Ubuntu1
Ubuntu2
Hours
02:25
02:49
Std. Dev.
0 min
0 min
With my configuration and the larger RAM setup on one of the Ubuntu machines I achieved the following result: tilemaker –thread 24 –fast –no-compress-nodes –no-compress-ways –materialize-geometries –input ./planet.osm.pbf –config ./my-config.json –process ./my-process.lua –output ./planet.mbtiles
Ubuntu1
Hours
01:45
Std. Dev.
1 min
This is currently the command I use to generate my tiles. It is worth mentioning that this setup uses the Tilemaker sources from around February 2024. With the latest sources I was somehow unable to reproduce this speed (see GitHub issue). As an additional note: on my second Ubuntu server, Osmium currently takes about 32 minutes on average to update a historical planet file (~160 GB).
Conclusion and Future Improvements
I think the results show that Tilemaker is influenced by CPU and memory bandwidth. While the Apple machines perform well, the Ubuntu system with a high amount of RAM benefits from aggressive Tilemaker parameters and multi-threading. Anyway, I hope this blog post and the numbers presented here can be helpful to others. I am confident that I did not mix up the processing times, but of course mistakes are always possible. I am also definitely not a Linux or parameter tuning expert, although according to several GenAI prompts there should still be some room for further optimization. I am not sure how much impact using multiple NVMe drives has in this setup. Based on my server monitoring I do not really observe significant I/O bottlenecks when comparing it with the RAM-heavy setup.
When it comes to Linux kernel tweaks such as memory cache tuning, hugepages, or filesystem optimization, I am completely out of my depth. If you have experience with kernel tuning, filesystem optimizations, or Tilemaker parameter tuning for large OSM datasets, I would love to hear about your setup.
7 days ago
12/03/2026-18/03/2026 [1] OpenArdenneMap is an open-source map style designed for the production of topographic maps for printing | © juminet | map data © OpenStreetMap Contributors. Mapping After passing through the proposal process and being approved the ETCS Markers Tagging Scheme, an effort to unify the tagging of the markers used by the European… Continue reading ͛
8 days ago
12/03/2026-18/03/2026
♦
[1] OpenArdenneMap is an open-source map style designed for the production of topographic maps for printing | © juminet | map data © OpenStreetMap Contributors.
Mapping
- After passing through the proposal process and being approved the ETCS Markers Tagging Scheme, an effort to unify the tagging of the markers used by the European Rail Traffic Management System, is available for everyone to use. Previously these were implemented using country-dependent schemes. The proponents are asking the mappers of countries where such systems are used to update the relevant wiki pages to include a redirect or a section unified with the new tagging scheme.
Community
- In their latest OpenStreetMap interview series, OpenCage spoke with Martin Ždila of Freemap Slovakia, the Slovak local chapter of the OpenStreetMap Foundation.
- The UN Maps team introduced its new community ambassadors, who plan different activities to bring OSM to local communities.
- KelsonV commented that the latest Pedestrian Working Group’s crosswalk corner tagging scheme is better than the way he had been doing it, so going forward he will use that scheme instead.
- Mateusz Konieczny has requested feedback for proposed preset changes in the iD tagging schema and shared a list of several currently being reviewed for potential inclusion.
- IXVG47QZ reported that last year Javi and Rebecca planned to bike-pack from the Austrian Alps into Asia using CoMaps, an OpenStreetMap-based mobile navigation app. ‘It has safely taken me to many countries in Asia and now in Oceania’, said Javi.
Local chapter news
- Habi has vibe-coded ♦ a script that monitors the official Swiss municipal boundary data from swisstopo and compares it with the boundary data in OpenStreetMap. The script runs daily at 2 am UTC via GitHub Actions, and is accessible here.
- Lyft, an American ride-sharing platform, has joined as the latest OSM US organisational member.
OSM in action
- Vasily Ivanov is developing ♦ a mobile-friendly bike route web map ♦ for the Ertlav ♦ cycling club. You can view other members’ routes and upload your own tracks and photos. OpenStreetMap is used as the base map and the map itself runs on MapLibre.
- rbb24 used ♦►♦ an OpenStreetMap-based map to visualise the locations of cycle paths that will be closed for renovations in the Oberspreewald-Lausitz district, Brandenburg, Germany.
Open Data
- The UNIPLU-BR dataset is the first unified and standardised national database of point precipitation (non-interpolated) in Brazil, consolidating raw data for 40 years and from five official monitoring networks: CEMADEN, INMET, ANA (Hidroweb), Telemetria, and ICEA. The dataset is available on Zenodo.org/EU.
Software
- The March Organic Maps update report includes release notes about improvements related to conditional speed limits, more detailed contours for China, split/smaller Tanzania regions, leather shops, and more. According to the developers this update took more time due to hotfixes and Google Play review.
- The project Geowiki provides a modular ecosystem for processing and visualising OpenStreetMap data, originally developed for OpenStreetBrowser. Its JavaScript library, geowiki-api, retrieves data via the Overpass API or OSM files, makes it usable in Leaflet, or exports it as GeoJSON, and can also act as an Overpass proxy server.
- vizsim has developed ♦ Missing Mapillary GraphHopper Routing for Germany, a web application that plans routes along roads without Mapillary imagery. The tool combines OpenStreetMap data with Mapillary coverage, highlights missing segments through colour-coded routes, and uses ♦►♦ GraphHopper for routing.
- Eugene published a report about the results of the OsmAnd 2026 user surveys that were conducted recently.
- Zkir announced that UrbanEye3D version 2.0, a JOSM plugin for visualising OpenStreetMap’s 3D data, will be released at the end of March 2026.
Releases
- [1] Juminet, who has been developing their topographic style over nine years, has announced the release of OpenArdenneMap winter 2025–2026 version. OpenArdenneMap is open-source map style designed for the production of topographic maps for printing, available for use with QGIS and the Mapnik/cartoCSS libraries.
OSM in the media
- Jules Grandin, of Les Échos, explained the history of roundabouts ♦►♦ in France and tries to answer the question of how many roundabouts there are in France using OpenStreetMap data.
- Ishaan Kocchar wrote, on Substack, about the triple axes of the ‘Digital Communities Trilemma’: openness, activity, and quality, in the context of OpenStreetMap and open data. Ishaan argued that the ‘big corporate consumers’ of the contributed data do not always provide any benefit to the OSM community or the project itself. They compared the Indian context of collaborative mapping with OSM with the local commercial market.
Other “geo” things
- Coordinate Mapper is a professional-grade geospatial tool for plotting, analysing, and exporting coordinate data in multiple systems, including WGS84 and the UK National Grid.
- PGlite, a open-source project that allows you to run PostgreSQL locally in a browser, has added long-awaited support for the PostGIS extension. You can try it out in the browser or use it as an npm package.
- The Instituto Geográfico Nacional (Spain) is offering ♦►♦ some courses on GIS and geoprocessing on its e-learning platform and using the OGC platform over 2026. The course about data management is open ♦.
Upcoming Events
Country
Where
Venue
What
When
OSMF Engineering Working Group meeting ♦
2026-03-20
♦
Olomouc
Přírodovědecká fakulta Univerzity Palackého
Missing Maps Day Olomouc 2026 ♦
2026-03-21
♦
Perímetro Urbano Yopal
OSM video
Encuentro virtual: Introducción a OpenStreetMap ♦
2026-03-21
♦
Tiranë
osmvideo.cloud68.co/user/ird-zqk-9vq-szt
OpenStreetMap Virtual Meetup Tirana ♦
2026-03-21
♦
Domplatz Fulda
Frühlingsmapping 2026 ♦
2026-03-22
Missing Maps : Mapathon en ligne – CartONG [fr] ♦
2026-03-23
♦
Bruxelles – Brussel
ULB Solbosch Campus – Building U – UB4.126
Belgian Interuniversity Mapathon 2026 ♦
2026-03-23
♦
Stadtgebiet Bremen
Online und im Hackerspace Bremen
Bremer Mappertreffen ♦
2026-03-23
♦
Pôle Numérique Brest Iroise
Rencontre OpenStreetMap et Territoires ♦
2026-03-24
♦
Göttingen
Uni Göttingen
FOSSGIS-Konferenz 2026 ♦
2026-03-24 – 2026-03-27
♦
Derby
The Brunswick, Railway Terrace, Derby
East Midlands pub meet-up ♦
2026-03-24
UN Mappers Mappy Hour: UN Maps Community Ambassador Pilot Initiative ♦
2026-03-25
♦
Düsseldorf
Online bei meet.jit.si/OSM-DUS-2026
Düsseldorfer OpenStreetMap-Treffen (online) ♦
2026-03-27
♦
Göttingen
Uni Göttingen, Fakultät für Geowissenschaften
FOSSGIS 2026 – OSM-Samstag ♦
2026-03-28
♦
Chemnitz
Neues Hörsaalgebäude, TU Chemnitz
Chemnitzer Linux-Tage 2026 ♦
2026-03-28 – 2026-03-29
Local Chapters & Communities Congress 2026 ♦
2026-03-28
♦
Vélo Utile
rencontre OSM ♦
2026-03-28
♦
Mira-Bhayander
DBT Café, Mira Road
OSM Mumbai Mapping Party No.8 (Western Line – North) ♦
2026-03-28
♦
Hannover
Kuriosum
OSM-Stammtisch Hannover ♦
2026-03-30
♦
Saint-Étienne
Zoomacom
Rencontre Saint-Étienne et sud Loire ♦
2026-03-30
♦
Stuttgart
Stuttgart
Stuttgarter OpenStreetMap-Treffen ♦
2026-04-01
♦
Le Schmilblick, Montrouge
Réunion des contributeurs de Montrouge et du Sud de Paris ♦
2026-04-02
♦
नई दिल्ली
Jitsi Meet (online)
OSM India – Monthly Online Mapathon ♦
2026-04-05
Note:
If you like to see your event here, please put it into the OSM calendar. Only data which is there, will appear in weeklyOSM.
This weeklyOSM was produced by MatthiasMatthias, Raquel IVIDES DATA, Strubbl, Andrew Davidson, TrickyFoxy, barefootstache, derFred, izen57, mcliquid.
We welcome link suggestions for the next issue via this form and look forward to your contributions.
8 days ago
Incluso edifícios numeração interpolada na região do Tatuapé , Parque São Jorge, e Jardim Maranhão.
9 days ago
Incluso edifícios numeração interpolada na região do Tatuapé , Parque São Jorge, e Jardim Maranhão.
9 days ago
Mnoho pozornosti kolem OpenStreetMap si v posledním období žádá kauza, která možná rozhodne o budoucnosti celého ekosystému otevřených map. Overture Maps Foundation, konsorcium vedené společnostmi Amazon, Meta, Microsoft a TomTom, se pokouší prosadit svůj Globální entitní referenční systém jako oficiální standard v rámci Open Geospatial Consortium. Na první pohled jde o technický detail – způsob
9 days ago
Mnoho pozornosti kolem OpenStreetMap si v posledním období žádá kauza, která možná rozhodne o budoucnosti celého ekosystému otevřených map. Overture Maps Foundation, konsorcium vedené společnostmi Amazon, Meta, Microsoft a TomTom, se pokouší prosadit svůj Globální entitní referenční systém jako oficiální standard v rámci Open Geospatial Consortium. Na první pohled jde o technický detail – způsob, jakým se mapovým prvkům přidělují jedinečné identifikátory. Pod povrchem se ale schyluje k něčemu mnohem zásadnějšímu.
Tento systém má za cíl vyřešit náročné propojování dat z různých zdrojů. Univerzální identifikátor by umožnil propojit katastr, dopravní data a body zájmu bez složitého mapování. Zní to lákavě, ale já v tom vidím onen známý princip, že nadějné řešení se snažením všehoschopných stane problémem pro všechny ostatní. Kdo bude mít právo identifikátory přidělovat? Kdo určí, co je samostatnou entitou hodnou svého čísla? Pokud se GERS stane standardem, stane se Overture de facto správcem registru mapové skutečnosti.
Reakce už proběhla v únoru. Simon Poole, jeden z nejuznávanějších hlasů v komunitě, varoval v diskusi na osmf-talk, že přijetí GERS by znamenalo „zakotvení Overture jako referenční datové sady pro celé odvětví“ . OSM by se pak mohlo ocitnout v roli podřadného dodavatele syrových dat, který nemá slovo v tom, jak je mapový svět strukturován. V únoru 2026 se k Overture připojila společnost BrightQuery, která přináší data o stovkách milionů organizací a lokací z vládních zdrojů. Overture tak buduje paralelní datový základ, který má ambici být úplnější a „autoritativnější“.
Na konferenci FOSDEM 2026 v Bruselu vystoupili zástupci Overture s prezentací svých úspěchů. Místní komunita open source nadšenců však zůstávala v napjatém tichu. Jeden z účastníků to vystihl slovy, že mezi Overture a OSM vládne „bazální odpojení, absence vzájemného porozumění“. Dva světy, které by na sobě mohly stavět, spolu nemluví. Jedni mluví o efektivitě a produktovém vývoji, druzí o místní znalosti a dobrovolném úsilí.
Tady se dostáváme k jádru věci. Mapy nejsou jen technický produkt. Jsou to obrazy reality, které zpětně formují naše chápání světa. Když každá budova a ulice dostane univerzální číslo přidělené konsorciem velkých soukromých firem, vytváříme infrastrukturu, která může sloužit k efektivní správě, ale stejně tak k efektivní kontrole podle jejich privátního zájmu. Že má jít o open data nehraje tolik roli. Herakleitův princip funguje stále stejně: to, co se na začátku jeví jako řešení, se na konci stává problémem.
Naštěstí existují protiproudy. Komunita se probudila a začala o těchto věcech otevřeně mluvit. V diskusích zaznívá, že OSM nepotřebuje jen technická vylepšení, ale také lepší schopnost jednat s korporátními partnery jako rovnocenný hráč. Někdo by to nazval profesionalizací, já spíš dospíváním projektu, který si uvědomuje, že nestačí jen dobře mapovat, ale že je potřeba také bránit principy, na kterých stojí.
Overture není jen jednorozměrný nepřítel. Je to signál, že otevřená mapová data jsou tak důležitá, že o ně začínají mít zájem největší hráči světa. A to je vlastně uznání hodnoty toho, co jsme vybudovali. Otázka zní, jestli dokážeme tento zájem využít k posílení projektu, aniž bychom ztratili jeho duši. Přes všechny obavy zůstávám opatrně optimistický, protože vidím, že komunita se nevzdává. Boj o podobu mapové infrastruktury budoucnosti je právě tím, co nakonec rozhodne, zda mapy zůstanou nástrojem svobody. A já věřím, že když budou tvůrci OpenStreetMap stateční a zároveň rozvážní, dokážeme udržet rovnováhu.
9 days ago
|
%{count} contribution(s) in the last year
section on the user page, should be edited. For numbers greater than four digits, periods are placed in groups of three for easier reading, but OSM user profiles have numbers that are difficult to read, such as 1234565885. If we write this as 1.234.565.885 or 1,234,565,885. The contribution counter will be easier to read.
17 hours ago
%{count} contribution(s) in the last year
section on the user page, should be edited. For numbers greater than four digits, periods are placed in groups of three for easier reading, but OSM user profiles have numbers that are difficult to read, such as 1234565885. If we write this as 1.234.565.885 or 1,234,565,885. The contribution counter will be easier to read.
17 hours ago
Javni overpass serveri su u zadnje vrijeme preopterećeni i bacaju greške…
Jedino trenutno “rješenje” je dizanje vlastitog servera. Postoje razne upute za ručno dizanje svoje instance servera, ali se čini kao puno pipkavog posla: osm.org/user/SomeoneElse/diary/408252
Srećom, @Johannes_Gramsch je spomenuo da postoji gotov Docker container; i zaista, postavljenje istog je dosta mal
2 days ago
Javni overpass serveri su u zadnje vrijeme preopterećeni i bacaju greške…
Jedino trenutno “rješenje” je dizanje vlastitog servera. Postoje razne upute za ručno dizanje svoje instance servera, ali se čini kao puno pipkavog posla: osm.org/user/SomeoneElse/diary/408252
Srećom, @Johannes_Gramsch je spomenuo da postoji gotov Docker container; i zaista, postavljenje istog je dosta malo posla (i većinom samo nekoliko sati čekanja da downloadi završe, i parsto GB mjesta na disku).
Meni je trebalo ispod pola sata posla, ali sa uputama može i za ispod 10ak minuta. Detalji na:
community.openstreetmap.org/t/overpass-api-performance-issues/140598/35
2 days ago
Ale o co chodzi?
3 days ago
Ale o co chodzi?
3 days ago
♦ It's seventeen years since I rode National Cycle Route 1 from Newcastle to Edinburgh. This year I'm gradually revisiting the Northumberland section. Last time I covered this in one go, in one direction, over a few days. Now I'm now riding it in both directions, in short sections, over several months. Bit by bit I've already covered quite a lot of the section between the T
3 days ago
♦ It's seventeen years since I rode National Cycle Route 1 from Newcastle to Edinburgh. This year I'm gradually revisiting the Northumberland section. Last time I covered this in one go, in one direction, over a few days. Now I'm now riding it in both directions, in short sections, over several months. Bit by bit I've already covered quite a lot of the section between the Tyne and Seahouses. Some of it I've ridden in both directions, and some of it several times. However, there are also some parts that I have yet to revisit. Today I was able to plug one of the local gaps by riding from Hipsburn to Dunstan and back. It was a bit of a grey day. A cold wind was blowing off-shore, but that only had a noticeable effect on progress when the route departed from the coast. I expected the climb out of Alnmouth to be a bit of a challenge. In the event I was pleased (and quite surprised) to manage it without having to get off and push. The rest of today's route is fairly flat. So this was a relatively speedy ride (by my standards). Between Boulmer an Howick there's a choice between an on-road and an off-road option. I've ridden parts of the off-road option in the past, and walk it quite often. I cleaned the bike yesterday and at this time of year I'd expect the off-road option to be quite wet and clarty. Also, at this time of year, on the roads, the volume of visitor traffic is only just starting to build up. So today I decided to stick with the on-road option in both directions. I didn't have anything that resembled a plan, but there were several alternatives for a refreshment break when I felt like one. The Arch Cafe just outside Craster is more-or-less at today's half-way point. So that seemed a sensible choice. It turned out to be a good one. In sumamry, a very pleasant ride. But lacking in anything that I need to bring to the attention of the world. Except for this UFO Monitoring Station just outside Alnmouth. ♦
3 days ago
I’ve recently learnt how to use the “Building” plugin on JOSM and it’s so slay.
5 days ago
I’ve recently learnt how to use the “Building” plugin on JOSM and it’s so slay.
5 days ago
Estimados
Hace 22 días aproximadamente subi una traza llamada Potrerillos, he revisado y hasta la fecha no se visualiza en el mapa, por favor me gustaría saber cual es el motivo o como debo hacer para sea visible en los mapas; ya que será de mucha ayuda a los montañistas que visitan esta zona y con cierta regularidad se pierden.
Gracias.
5 days ago
Estimados
Hace 22 días aproximadamente subi una traza llamada Potrerillos, he revisado y hasta la fecha no se visualiza en el mapa, por favor me gustaría saber cual es el motivo o como debo hacer para sea visible en los mapas; ya que será de mucha ayuda a los montañistas que visitan esta zona y con cierta regularidad se pierden.
Gracias.
5 days ago
HOT Mentorship Program 2025: Mapping Fire Incident Hotspots in Nairobi, Kenya.
In the last quarter of 2025, I was privileged to be part of the HOT Mentorship Program. I was a mentee in the third cohort, focusing on Open Community Building. I got to experience first-hand what it takes to work on an individual research project here in Kenya. My project was voluntary, but I learned a new meaning o
6 days ago
HOT Mentorship Program 2025: Mapping Fire Incident Hotspots in Nairobi, Kenya.
In the last quarter of 2025, I was privileged to be part of the HOT Mentorship Program. I was a mentee in the third cohort, focusing on Open Community Building. I got to experience first-hand what it takes to work on an individual research project here in Kenya. My project was voluntary, but I learned a new meaning of that word through the project.
According to the Oxford Learners’ Dictionary, voluntary is an adjective that refers to “actions done willingly, of one’s own accord, or by free choice, rather than being forced, paid, or compelled by law”. I understood that part very well, but I had little knowledge that free will doesn’t necessarily mean zero budget. So there was that.
What does it take to carry out a research project in Kenya?
While there is no “one size fits all” blanket that defines the needs for all projects, here are a few key points to consider before starting any project:
- General purpose of the project: academic thesis, community building, etc.
- Data: required datasets, available data sources, required licenses and terms of use.
- Scope of the project: geographical extent, objectives of the research project,
- Resource allocation: time, human resources/ stakeholder engagement, financial resources or physical resources.
- Legal Requirements: Associated licenses that may be required depending on the nature of the project.
Mapping Fire Incidents in Mukuru Kwa Njenga
Nairobi is the largest metropolitan city in Kenya, serving as a central hub for various economic and political activities in the country. Affordable housing is a major challenge in the city, leading to the formation of several informal settlements across the county, which lack proper infrastructure. Mukuru Kwa Njenga is one of these settlements. Like many others, the area is characterised by clustered mabati structures and narrow access roads that connect the region to other parts of the city. Fire incidents are a common tragedy in this area, leading to loss of property and lifelong scars.
♦
Image credits: Nairobi Leo News
Research Objectives
The main objectives of the project were:
- To identify the causes of fire incidents in Mukuru
- To map fire incident hotspots in the area
- To identify the role of community leaders and residents in fighting the recurrent fire incidents
Data and Methods
The project was mainly qualitative, seeking to understand the patterns behind the causes of recurring fire incidents in Mukuru, how the fires start and where the incidents occur frequently. The project was carried out in the following steps:
-
Data Acquisition/ Exploratory Data Analysis: Acquiring relevant data from the International Centre for Humanitarian Affairs
(ICHA), OpenStreetMap and ground verification.
- Hotspot Analysis: Identifying the fire incident hotspots within Mukuru Kwa Njenga and the surrounding settlements, as established from the data and field survey.
-
Qualitative Data Analysis: Identifying the causes of fires in Mukuru and identifying the gaps in the distribution of emergency care services around the fire incident hotspots.
- Capacity Building: Conducting a fire safety awareness training and community engagement forum.
Research Findings
The following map shows the distribution of fire incident hotspots around Mukuru Kwa Njenga and the surrounding areas:
♦
From the research findings, fire Incidents in Mukuru Kwa Njenga are majorly caused by:
- Faulty Cooker Valves: Commonly used cookers have valves that gradually become loose and pose a fire hazard caused by gas leakage.
- Traditional lanterns (koroboi): These lamps pose a fire hazard when knocked over or left unattended, and are a common cause of fire ignition.
- Abandoned cooking stoves: When cooking stoves are abandoned for a long time, they slowly ignite cooking pots and nearby curtains, hence starting a fire.
- Faulty Wiring: Most power cables in the area do not meet the required standards of installation, and they pose a risk of electrocution and ignite fires.
- Building material of the houses: Most of the houses in Mukuru are mabati houses, which are crowded and catch fire very easily
- Lack of supportive infrastructure: lack of a nearby fire station, narrow access roads, insecurity and inadequate water supply in the area slow the response rate to fire incidents in Mukuru Kwa Njenga and surrounding areas.
♦
*Image Credits: Online
Challenges and Limitations
- Limited Project Funding - Challenges in facilitating the community
members and field assistants who participated in the mapping exercise
- Limited Project Scope: The project only covered a few villages in Mukuru, due to limited project timelines and funding.
Recommendations
- The community members should collaborate with the Fire Brigade Team
to organise more fire safety training programs
- The residents of Mukuru should replace their gas valves regularly to
prevent fire incidents caused by gas leakages.
- Further research should expand the project scope to cover a wider area
and propose solutions for the recurring fire incidents.
Conclusion
Recurring fire incidents are one of the major challenges that the people of Mukuru have continued to endure for several years. This project highlighted the major causes of fire incidents and mapped some of the incident hotspots within Mukuru. The OpenStreetMap database was particularly useful in geocoding street addresses, locating emergency amenities such as health centres, providing building footprint data, access roads and social amenities such as water points. The project aimed at increasing the visibility of Mukuru to the relevant stakeholders and inviting some action on the subject matter.
Mentor: Farhina Hoque
Manager- Student Affairs
Asian University for Women (AUW)
Bangladesh.
Mentee: Evalyne Nyawira
Geospatial Analyst
Nairobi, Kenya.
6 days ago
♦Maelmin Henge is just outside Millfield. It's a reconstruction of the nearby Milfield North Henge: one of several henge monuments in the Till Valley that date from the Later Neolithic and Early Bronze Age. Today's ride started in Millfield, then passed through a series of small settlements: Ford, Crookham, Branxton and Mindrum. Apart from Maelmin Henge I took in the sit
7 days ago
♦Maelmin Henge is just outside Millfield. It's a reconstruction of the nearby Milfield North Henge: one of several henge monuments in the Till Valley that date from the Later Neolithic and Early Bronze Age. Today's ride started in Millfield, then passed through a series of small settlements: Ford, Crookham, Branxton and Mindrum. Apart from Maelmin Henge I took in the site of the Battle of Flodden, which was fought outside Branxton in 1513. The Church of St Michael and All Angels at Ford dates from the 13th Century, and was heavily restored by John Dobson in 1853. There has been a mill at Heatherslaw since 1291. The current one was restored and re-opened in 1975, but was closed today. For more local history I could have made a brief diversion via the 14th Century Etal Castle. But enough is enough. Part of my route followed NCN68 - the Pennine Cycle Way. The two sections on the A697 were both very brief and traffic wasn't a problem. The rest of the ride was on quiet country lanes. Once again I chose a route that is more hilly than I'm used to. On my personal scale of difficulty I couldn't rate this as an "Easy" ride. Others describe it as "Moderate", but I'd have to rate it as more difficult than that. "Challenging" would be putting it too strongly. I'd like to rate it as "Satisfying", but for now, I think I'll settle on "Demanding".
7 days ago
Durant les mois d’Avril et de Mai, je vais faire comme à Jassans en 2025, c’est à dire faire des relevé hebdomadaires de ref=* des lampadaires de Chaleins:
Carte: umap.openstreetmap.fr/fr/map/carte-releve-lampadaire-de-chaleins_1371864#13/46.051374/4.819221
Dates actuelles:
Aujourd’hui (22/03)=Zone 1=Lancement Chaleins !
28/03/2026=Zone 2
04/04/2026=❌ Annu
8 days ago
Durant les mois d’Avril et de Mai, je vais faire comme à Jassans en 2025, c’est à dire faire des relevé hebdomadaires de ref=* des lampadaires de Chaleins:
Carte: umap.openstreetmap.fr/fr/map/carte-releve-lampadaire-de-chaleins_1371864#13/46.051374/4.819221
Dates actuelles:
Aujourd’hui (22/03)=Zone 1=Lancement Chaleins !
28/03/2026=Zone 2
04/04/2026=❌ Annulé=FCO 2026
11/04/2026=Zone 3
18/04/2026=❌ Annulé=Conscrits de Frans
25/04/2026=Zone 4
02/05/2026=Zone 5
09/05/2026=Zone 6
16/05/2026=Zone 7
23/05/2026=Zone 8
30/05/2026=Zone 9
06/06/2026=Zone 10=Finalisation de Chaleins
Les dates peuvent bougé en fonction de mon planning perso…
8 days ago
Editoriales Intro: März 2026, Wien, Paris
Im März 2026 fühlt sich OpenStreetMap gleichzeitig vertraut und fragil an: Wien routet seine Fahrpläne auf OSM-Basis, Start‑ups bauen Geschäftsmodelle darauf, humanitäre Organisationen verlassen sich im Katastrophenfall auf OSM‑Gebäudeumrisse. Gleichzeitig wissen Eingeweihte, dass große Teile dieser „kritischen Infrastruktur“ an einer Handvoll Ehrenamtl
9 days ago
Editoriales Intro: März 2026, Wien, Paris
Im März 2026 fühlt sich OpenStreetMap gleichzeitig vertraut und fragil an: Wien routet seine Fahrpläne auf OSM-Basis, Start‑ups bauen Geschäftsmodelle darauf, humanitäre Organisationen verlassen sich im Katastrophenfall auf OSM‑Gebäudeumrisse. Gleichzeitig wissen Eingeweihte, dass große Teile dieser „kritischen Infrastruktur“ an einer Handvoll Ehrenamtlicher hängen – vor allem dort, wo es um Serverbetrieb, Kernsoftware und die API geht. blog.openstreetmap
Mit dem Fördervertrag der deutschen Sovereign Tech Agency über 384.000 Euro für die Modernisierung der OSM‑Kernsoftware steht erstmals schwarz auf weiß da, was viele in der Community seit Jahren behaupten: OSM ist digitale Grundversorgung – aber ihre Wartung ist weder institutionell noch demokratisch so abgesichert, wie es dieser Status vermuten ließe. Parallel laufen die Vorbereitungen für State of the Map 2026 in Paris, das Ende August als globales Treffen der OSM‑Community stattfinden wird – inklusive Calls für Session-Proposals und Wissenschaftsabstracts, die gerade jetzt im März geöffnet sind. Es liegt in der Luft, dass Paris der Ort wird, an dem sich entscheidet, ob OSM eher technokratisch oder partizipativ weiterwächst. 2026.stateofthemap
Aus Wiener Perspektive wirkt diese globale Debatte keineswegs abstrakt. Die Stadt setzt zunehmend auf partizipative Formate, um Mobilität, Stadtraum und Klimaanpassung zu gestalten; OSM‑Daten fließen in Routing, Accessibility‑Anwendungen und diverse Forschungsprojekte ein. Gleichzeitig reproduzieren OSM‑Daten selbst urbane Ungleichheiten: Innenbezirke sind hochdetailliert, während periphere Siedlungen, informelle Treffpunkte oder Angebote für vulnerable Gruppen oft unsichtbar bleiben. mdpi
Diese Kolumne nimmt Wien als Labor, um vier Ebenen zusammenzudenken:
- Governance‑Krise in der OSM‑Infrastruktur: Wer darf am „Herz“ drehen – und wer nicht?
- Barrierefreiheit als Datengerechtigkeit: Wer wird kartiert, wer bleibt unsichtbar?
- Humanitäre Kartographie und digitales Erbe: Was lernen wir aus Myanmar 2025 für Wien 2026?
- Konkrete Mapping‑Aufgaben für März/April in Wien, die lokale Praxis mit globalen Debatten verbinden.
Theoretisch lehnt sich die Kolumne an Laszlos Netzwerk‑Systemik an: OSM als Supersystem, in dem Governance‑Entscheidungen, Datenpraktiken und urbane Gerechtigkeit miteinander verschränkt sind. Ergänzt wird dies durch Archive‑Justice‑Perspektiven à la Trouillot: Nicht nur, was in der Karte steht, ist politisch – auch das, was fehlt. mdpi
Kapitel 1 – Governance-Krise: Wer wartet OSMs Herz?
1.1 OWG als technokratischer Gatekeeper
Die Operations Working Group (OWG) verantwortet den Serverbetrieb von OSM: API, Datenbank, Tiles, Backups, Hardwareplanung und Richtlinien für die Nutzung der zentralen Dienste. Ohne OWG gibt es keine neuen Planet-Files, keine Bearbeitungen, keine Standardkarten – OSMs „Herzschlag“ hängt an dieser Gruppe. operations.osmfoundation
Die offizielle Dokumentation listet Aufgaben wie Kapazitätsplanung, Sicherheitsupdates und Policy‑Formulierung, bleibt aber vage bei der Frage, wie Entscheidungen priorisiert und legitimiert werden. In der Praxis handelt es sich um einen kleinen Kreis hochspezialisierter Admins, die ehrenamtlich agieren, aber Entscheidungen mit globalen Auswirkungen treffen – etwa, welche Dienste wie stark gedrosselt werden oder welche Infrastrukturprojekte bevorzugt Ressourcen bekommen. osmfoundation
Damit entsteht ein Single‑Point‑of‑Failure auf zwei Ebenen: technisch (wenige Personen kennen die komplexe Infrastruktur wirklich) und politisch (wenige Personen strukturieren faktisch die Infrastruktur‑Agenda). Community‑Diskussionen zur „Core Software Governance“ problematisieren genau das: unklare Kriterien, welche Software überhaupt „core“ ist, informelle Nachfolgeregeln und potenzielle Interessenkonflikte, wenn dieselben Personen sowohl in Working Groups als auch als Maintainer oder Unternehmensvertreter auftreten. sovereign
1.2 Tagging-Governance: partizipativ, aber getrennt
Im krassen Gegensatz dazu ist die Governance rund um Tagging überwiegend offen und partizipativ organisiert: Neue Tags durchlaufen Proposal‑Phasen im Wiki, werden auf Mailinglisten und im Forum diskutiert, und am Ende steht – zumindest formal – eine transparente Abstimmung. Auch wenn Machtasymmetrien (z.B. Englischkenntnisse, Zeitressourcen) existieren, bleibt der Prozess sicht‑ und kritisierbar; De‑facto‑Standards entstehen oft iterativ und können bei Bedarf durch neue Proposals korrigiert werden. welcome.openstreetmap
Diese Asymmetrie zwischen Tagging‑ und Infrastruktur‑Governance ist systemisch bedeutsam: Sie trennt die „semantische Demokratie“ (viele Menschen entscheiden, wie die Welt beschrieben wird) von der „infrastrukturellen Oligarchie“ (wenige Menschen entscheiden, wie diese Beschreibungen überhaupt gespeichert, ausgeliefert und verarbeitet werden). Aus Laszlos Perspektive bedeutet das: Ein Subsystem (Tagging) ist hochgradig adaptiv und selbstorganisiert, das andere (Infrastruktur) ist starr und stark von Schlüsselpersonen abhängig – ein Rezept für Resilienz‑Probleme. mdpi
1.3 Sovereign Tech Agency: Governance als Infrastruktur-Investment
Vor diesem Hintergrund wirkt die Investition der Sovereign Tech Agency fast wie eine späte Systemdiagnose: In der Ankündigung wird OSM explizit als „globale Infrastruktur für digitale Kartendaten“ beschrieben, die öffentliche Dienste, private Produkte und humanitäre Einsätze gleichermaßen trägt. Der Servicevertrag über 384.000 Euro über zwei Jahre ist zweckgebunden für Stabilität, Wachstum und Modernisierung der Kernsoftware, inklusive Code‑Refactoring, Tests, Dokumentation und Governance‑Verbesserungen in der Entwickler:innengemeinschaft. blog.openstreetmap
Konkret schafft die OSMF zwei neue, bezahlte Rollen; die erste – „Core Software Development Facilitator“ – wurde 2025 mit Minh Nguyễn besetzt. In der offiziellen Vorstellung beschreibt er seine Aufgabe als Koordination der verstreuten Kernentwicklungsprojekte, Verbesserung der Kommunikation und Schaffung von Einstiegspfaden für neue Contributor. Governance wird hier explizit als zu investierende Infrastruktur gesehen: nicht nur Server, sondern auch Moderation, Onboarding und Nachfolgeplanung. blog.openstreetmap
Für Wien bedeutet das: Wenn städtische Stellen, Verkehrsverbünde oder Forschungsprojekte OSM als Infrastruktur nutzen, hängen sie an Governance‑Entscheidungen, die aktuell in wenigen Gremien und Rollen gebündelt sind. Die Frage, ob die OSMF „auch in die Governance‑Moderne selbst“ investiert, ist damit nicht abstrakt, sondern Teil jeder Ausschreibung, jeder Forschungskooperation und jedes Stadtraumprojekts, das OSM als Basis nutzt. community.openstreetmap
1.4 Wien als Gegenmodell: Stammtische und offene Entscheidungsräume
Die Wiener OSM‑Stammtische zeigen, wie Governance auch aussehen kann: Termine, Themen und Protokolle sind im Wiki und auf der österreichischen OSM‑Seite dokumentiert; neue Leute können spontan auftauchen, Fragen stellen, Projekte vorschlagen. Ob es um neue Schemas für Radabstellanlagen, Mapping von Schanigärten oder Data‑Quality‑Checks entlang neuer Bim‑Linien geht – Entscheidungen entstehen in offenen Runden, nicht in GitHub‑Issues hinter geschlossenen Türen. openstreetmap
Aus systemischer Sicht fungiert der Stammtisch als lokaler Regler im globalen Netz: Er koppelt globale Normen (z.B. Tagging‑Konventionen für Barrierefreiheit) mit lokalen Praktiken (konkretes Mapping in Wien), schafft soziale Redundanz (mehrere Leute verstehen denselben Stadtteil) und reduziert Abhängigkeiten von Einzelpersonen. Wien kann – gerade in Richtung SotM 2026 – als Beispiel dienen, wie infrastrukturelle Fragen (z.B. Validator‑Trainings, lokale QA‑Setups) frühzeitig in solche offenen Formate integriert werden. mdpi
Kapitel 2 – Barrierefreiheit als Datengerechtigkeit in Wien
2.1 Wheelmap: Viele Orte, große Lücken
Wheelmap.org, betrieben von Sozialhelden e.V., ist eine globale Karte zur Rollstuhlgerechtigkeit öffentlicher Orte – technisch und inhaltlich eng mit OSM verknüpft. Die Plattform meldet heute rund eine Million durch die OSM‑ und Wheelmap‑Community bewertete Orte und etwa eine weitere Million über Partnerdatensätze wie Foursquare oder HERE, sodass global über zwei Millionen Orte mit Accessibility‑Informationen sichtbar sind. isocial
Diese Zahl klingt beeindruckend, steht aber in keinem Verhältnis zur realen Menge an Restaurants, Ämtern, Gesundheits‑POIs oder ÖPNV‑Haltestellen weltweit. Studien zur OSM‑POI‑Qualität und -Vollständigkeit zeigen, dass in vielen Regionen des Globalen Südens die Abdeckung selbst bei Basiskategorien wie Schulen oder Kliniken stark lückenhaft ist. Accessibility‑Informationen sind in diesen Regionen oft nahezu inexistent – nicht, weil es keine Barrieren gäbe, sondern weil es keine Mapper:innen gibt, die sie eintragen. pmc.ncbi.nlm.nih
In Wien zeigt sich das Muster in abgeschwächter Form: Innenstädtische Bezirke mit hoher touristischer Dichte und aktivistischen Netzwerken sind relativ gut mit wheelchair‑Tags versehen, während periphere Siedlungen, Gemeindebauten oder migrantisch geprägte Einkaufsstraßen deutlich schlechter dokumentiert sind. Datengerechtigkeit wird damit zu einer Frage der sozialen Geografie: Wer wohnt wo, und wer mappt wo? journals.sagepub
2.2 Accessible Maps und die unterschätzte Komplexität von Accessibility-Tags
Das Projekt Accessible Maps (TU Dresden, ACCESS@KIT) sammelt systematisch Merkmale, die barrierefreie Indoor‑ und Outdoorkarten unterstützen sollen: Liftpositionen, Rampenneigung, Türbreiten, Handläufe, taktile Leitsysteme, Kontrastverhältnisse, akustische Signale und mehr. In enger Abstimmung mit Sozialhelden und der OSM‑Community wurden Symbolsets und Tag‑Empfehlungen entwickelt, um diese Vielfalt in leicht nutzbare Kartenoberflächen zu übersetzen. access.kit
OSM besitzt bereits hunderte Tags für Barrierefreiheitsaspekte – von wheelchair=yes/no/limited über tactile_paving bis hin zu detaillierten Angaben für Türen, Rampen und Aufzüge. Das Problem ist weniger die Semantik, sondern die Praxis: Ohne gezielte Micro‑Mapping‑Kampagnen bleiben die meisten dieser Felder leer. Qualitätsstudien zu OSM‑POIs belegen, dass selbst in gut kartierten Städten viele soziale und medizinische Einrichtungen keine vollständigen Attribute zu Öffnungszeiten, Zugänglichkeit oder angebotenen Leistungen besitzen. wiki.openstreetmap
Für Wien bedeutet das: Technisch ist alles da, um eine hochdetaillierte Accessibility‑Karte zu erzeugen. Es fehlt vor allem an Arbeitszeit, Priorisierung und Koordination – also an Governance‑Entscheidungen innerhalb der lokalen Community und an Kooperationen mit zivilgesellschaftlichen Akteuren (Behindertenvertretungen, Senior:innenorganisationen, migrantische Initiativen). pmc.ncbi.nlm.nih
2.3 Archive Justice: Unsichtbare Körper im Stadtplan
Michel‑Rolph Trouillot zeigt in „Silencing the Past“, dass Archive Machtverhältnisse nicht nur abbilden, sondern aktiv herstellen, indem sie bestimmte Ereignisse und Akteur:innen dokumentieren und andere ausblenden. Übertragen auf OSM heißt das: Wenn Barrierefreiheit in vielen Stadtteilen Wiens nicht dokumentiert wird, ist das kein „zufälliges Loch“, sondern ein epistemischer Ausschluss – bestimmte Körper und Wege zählen weniger. metodos
Partizipative Mappingprojekte in Slums Afrikas und Asiens illustrieren, wie radikal es ist, wenn informelle Siedlungen erstmals auf einer Karte erscheinen: Sie werden verhandelbar für Stadtplanung, Hilfsprogramme und politische Forderungen. In Wien könnte ein vergleichbarer Schritt darin bestehen, systematisch jene Grätzl zu kartieren, in denen Armut, Migration und Behinderung kumulieren – etwa Teile von Favoriten, Ottakring oder Floridsdorf – und dort Accessibility‑Daten als eigenes Gerechtigkeitsprojekt zu verstehen. mdpi
Archive Justice im OSM‑Kontext heißt: Nicht „wo fehlt noch irgendwas?“, sondern „wessen Lebensrealität fehlt systematisch?“. In Wien betrifft das neben Menschen mit Behinderungen auch wohnungslose Menschen, Sexarbeiter:innen, undocumented migrants oder Menschen mit psychischen Erkrankungen, deren Infrastrukturen (Notunterkünfte, Beratungsstellen, Peer‑Support‑Räume) oft bewusst unsichtbar gehalten werden – teilweise aus Sicherheitsgründen, teilweise aus Stigma. tandfonline
2.4 Wien als Stadtlabor: Vom Ring über die Gürtelränder bis zum Stadtrand
Entlang der klassischen Achse Ring – Gürtel – Stadtrand lassen sich diese Ungleichheiten kartographisch sichtbar machen. Untersuchungen zur OSM‑Datenqualität in europäischen Städten zeigen, dass Stadtzentren und „gehypte“ Quartiere (Nightlife, Tourismus, Kreativwirtschaft) deutlich dichter mit POIs und Attributen belegt sind als periphere oder stigmatisierte Bezirke. Für Wien bedeutet das: Innere Bezirke und Teile der Leopoldstadt sind überdurchschnittlich präsent, während Gemeindebauten am Stadtrand, Kleingartenkolonien und manche Industriestreifen stark unterrepräsentiert sind. pmc.ncbi.nlm.nih
Ein Accessibility‑Fokus würde diese Ungleichheiten nicht automatisch aufheben, aber bewusst adressieren: Statt „wir mappen, was uns vor die Füße fällt“ könnte die Frage lauten: Welche Orte sind für Menschen mit Rollstuhl, mit Kinderwagen, mit Blindenstock oder mit Panikstörungen besonders kritisch – und wie gut sind sie in OSM repräsentiert? ÖPNV‑Knoten, Magistratische Bezirksämter, Ambulanzen, psychologische Dienste, kostenlose Beratungsstellen, barrierearme Parks: All das lässt sich in der Stadtfläche systematisch suchen und markieren – oder eben als schmerzhafte Leerstelle erleben. frontiersin
Kapitel 3 – Humanitäre Kartographie, Wien und das digitale Gedächtnis
3.1 Myanmar 2025: Katastrophe als Kartographie-Beschleuniger
Das Erdbeben in Myanmar 2025 markiert einen weiteren Fall, in dem humanitäre Organisationen auf OSM als zentrale Datenquelle für Gebäude und Straßen zurückgreifen. HOT und myOSM koordinieren Remote‑Mapping und lokale Validierung, um betroffene Gebiete rasch mit brauchbaren Geodaten zu versehen – ein Muster, das seit den Haiti‑Erdbeben 2010 mehrfach zu beobachten war. hotosm
Gleichzeitig zeigen Auswertungen zur Gebäudevollständigkeit und OSM‑Qualität, dass solche Kampagnen oft selektiv sind: Bestimmte Städte erhalten sehr detaillierte Daten, während andere Regionen im selben Land weiterhin kartographisch leer bleiben. Zudem ist der Engpass längst nicht mehr das reine Zeichnen, sondern die Validierung: HeiGIT‑Analysen des HOT Tasking Managers dokumentieren, dass der Anteil an validierten Tasks immer wieder hinter der Mappingaktivität zurückbleibt; Programme wie jenes des American Red Cross versuchen seit 2020 gezielt, neue Validator:innen zu trainieren und längerfristig zu binden. annualreport2020.hotosm
Das zentrale Learning für Wien ist nicht „wir müssen auch Katastrophen kartieren“, sondern: Qualität entsteht dort, wo lokale Communities Governance übernehmen – im Fall Myanmar etwa durch Organisationen wie myOSM, die Mappingprioritäten selbst setzen und Validierung in lokale Trainingsprogramme einbetten. wiki.openstreetmap
3.2 OSHDB und ohsome: Wer war wann sichtbar?
Die OpenStreetMap History Database (OSHDB) und die ohsome API stellen OSM‑Historydaten als auswertbares Gedächtnis zur Verfügung: Jede Objektänderung seit 2007 kann nach Raum, Zeit und Attributen analysiert werden. HeiGIT demonstriert mit ohsomeHeX und diversen Studien, wie sich daraus Metriken zu Datenwachstum, Gebäudevollständigkeit oder Corporate Editing ableiten lassen. d-nb
Für Wien bedeutet das: Mit wenigen Abfragen lässt sich rekonstruieren, wann bestimmte Stadtteile überhaupt auf der OSM‑Bühne erschienen sind – und welche nie wirklich dort angekommen sind. Wurden neue Stadtentwicklungsgebiete wie Seestadt Aspern oder Nordbahnviertel schnell und detailliert gemappt, während ältere Gemeindebauten jahrelang nur als graue Flächen existierten? Stiegen POI‑Dichten vor allem in hippen Grätzln, während Sozialinfrastruktur im Schatten blieb? mdpi
In Archive‑Justice‑Begriffen könnte man sagen: OSHDB dokumentiert nicht nur, was im Archiv steht, sondern erlaubt Rückschlüsse auf die Mechanismen des „Silencing“ – wann, durch wen und aus welchem Anlass bestimmte Räume (nicht) in die Karte aufgenommen wurden. heigit
3.3 Wien 2026: Disaster Risk Reduction als Community-Aufbau
Auch wenn Wien keine Erdbebenregion ist, steht die Stadt vor anderen Risiken: Hitzewellen, Starkregen, Blackouts, soziale Spannungen. Forschungen zu klimabedingten Risiken und urbaner Resilienz betonen, dass besonders vulnerable Gruppen (ältere Menschen, einkommensarme Haushalte, marginalisierte Communities) geographisch konzentriert sind – oft in Vierteln mit schlechterer Infrastruktur und weniger politischen Ressourcen. journals.openedition
Ein OSM‑basiertes Disaster‑Risk‑Reduction‑Programm für Wien könnte bedeuten, gemeinsam mit lokalen Organisationen jene Infrastrukturen kartographisch zu stärken, die im Krisenfall entscheidend sind: kühle öffentliche Räume, Trinkbrunnen, niedrigschwellige Versorgungsorte, Community‑Zentren, Treffpunkte informeller Care‑Netzwerke. Dabei ließe sich Know‑how aus humanitärer Kartographie – etwa Validator‑Trainings nach HOT/Red‑Cross‑Vorbild – bewusst auf den Wiener Kontext übertragen. heigit
Im besten Fall wirkt das doppelt: Datenqualität steigt, und gleichzeitig entsteht ein Netz von Menschen in Wien, die nicht nur „für“ andere kartieren, sondern mit ihnen – in Arbeitskreisen, Stammtischen, thematischen Mapping‑Walks.
Kapitel 4 – Konkrete Mapping-Aufgaben für Wien (März/April 2026)
Zum Abschluss drei Aufgaben, die du in Wien – allein, mit Freund:innen oder im Rahmen eines Stammtisch‑Meetups – direkt angehen kannst. Sie verbinden die oben beschriebenen systemischen Ebenen mit sehr konkreter Kartographiepraxis.
Aufgabe 1: Micro-Mapping entlang Wiener Hauptachsen
Leitfrage: Wie sieht eine barrierearme, gut beleuchtete Route durch Wien wirklich aus?
Vorschlag: Wähle eine prominente Achse, z.B.:
- Praterstern – Schwedenbrücke – Schottentor
- Westbahnhof – Mariahilfer Straße – Museumsquartier
- Simmeringer Platz – Zentralfriedhof – Oberlaa
Kartiere entlang dieser Route gezielt Mikro‑Infrastruktur:
- Bänke (amenity=bench) mit Attributen zu Rückenlehne, Armlehnen, Oberfläche.
- Straßenlaternen (highway=street_lamp), inklusive Position relativ zum Gehsteig.
- Eingänge (entrance=, access=, wheelchair=*) zu Geschäften, Ämtern, Gesundheits‑POIs.
- Öffentliche Toiletten, insbesondere mit Tags für Eurokey/Euroschlüssel, Geschlechteraufteilung und barrierefreien Kabinen. accessiblemaps
Nutze StreetComplete oder Every Door für vor Ort‑Mapping – beide Apps führen dich über Fragen durch fehlende Tags und eignen sich gut für Mapping‑Spaziergänge. Ergänzend kannst du JOSM einsetzen, um Geometrien zu verbessern, Routenrelationen zu pflegen und komplexe Tagging‑Schemata vorzubereiten. play.google
Ziel ist eine Route, die du am Ende als „Inklusions‑Pfad“ veröffentlichen kannst: nicht nur kürzeste, sondern auch sicherste und barriereärmste Variante, inklusive Sitzgelegenheiten und Beleuchtung. Solche Pfade sind für Menschen mit Mobilitätseinschränkungen, für Eltern mit Kinderwagen und für ältere Menschen gleichermaßen wertvoll. aaate
Aufgabe 2: POI-Equity-Audit für vulnerable Gruppen in Wien
Leitfrage: Welche Einrichtungen für vulnerable Gruppen fehlen in OSM – und wo häufen sich die Lücken?
Vorgehen:
- Definiere POI‑Kategorien, die dich interessieren, z.B.:
- Frauenärzt:innen und gynäkologische Ambulanzen.
- Migrantische Beratungsstellen, Community‑Zentren, Sprachcafés.
- Harm‑Reduction‑Einrichtungen (Drogenberatung, Substitutionsambulanzen).
- Notquartiere, Wohnheime, Streetwork‑Kontaktstellen.
-
Nutze JOSM mit einem eigenen MapCSS‑Style, um diese Kategorien sichtbar zu machen: Färbe bekannte POIs auffällig ein, lasse den Rest grau. openstreetmap
- Vergleiche OSM mit externen offenen Listen (z.B. städtische Verzeichnisse, NGO‑Listen), indem du fehlende Einrichtungen als Notizen, Kartenmarkierungen oder separate To‑Do‑Liste vermerkst. frontiersin
Studien zur OSM‑POI‑Vollständigkeit zeigen, dass gerade sozialsensitive Angebote systematisch unterrepräsentiert sind; ein Equity‑Audit übersetzt diese abstrakte Erkenntnis in konkrete Wiener Straßenzüge. Anschließend kannst du gezielt mit Organisationen Kontakt aufnehmen: „Wir möchten eure Beratungsstelle in OSM sichtbar machen – welche Informationen sind euch wichtig?“ So verschiebt sich die Dynamik von „für“ hin zu „mit“ kartieren. dl.acm
Aufgabe 3: Wien durch die Zeit – ohsome-Abfrage als Selbstreflexion
Leitfrage: Welche Teile Wiens waren 2026 bereits „im Gedächtnis“ – und welche nicht?
Über das ohsome‑Dashboard oder die API kannst du für ausgewählte Ausschnitte (z.B. Nordbahnviertel, Teile Favoritens, ein Gürtel‑Segment) zeitliche Kurven für bestimmte Objekte anfragen: Anzahl der Gebäude, Dichte von POIs, Häufigkeit bestimmter Tags. wiki.openstreetmap
Konkrete Schritte:
- Definiere einen Polygon‑Ausschnitt in Wien (z.B. ein Grätzl mit starkem Wandel).
- Lass dir über ohsome das Wachstum der building‑Objekte und ausgewählter POI‑Typen von 2008 bis 2026 anzeigen. d-nb
- Suche nach auffälligen Sprüngen (z.B. Bauprojekte, Mappingkampagnen) und nach auffälliger Stagnation (Grätzl, die nie detailliert wurden). mdpi
So wird OSHDB zum Spiegel für Wiens digitales Gedächtnis: Welche Entwicklungen haben wir früh gesehen? Welche späten Nachträge deuten auf Gentrifizierungswellen hin? Welche Grätzl sind 2026 immer noch digitale Schattenräume? Diese Analysen können direkt in lokale Diskussionen einfließen – etwa beim Stammtisch oder bei städtischen Runden zu Daten‑ und Beteiligungspolitik. openstreetmap
Schlussfrage: Kartieren wir Wien „für“ oder „mit“ marginalisierten Gruppen?
Die förderpolitische Aufwertung von OSM durch die Sovereign Tech Agency, die anstehende SotM 2026 in Paris und die allgegenwärtige Nutzung von OSM in Verwaltung, Wissenschaft und Zivilgesellschaft machen 2026 zu einem Wendepunkt. Entweder wird OSM zu einer hochprofessionellen, aber technokratisch geführten Infrastruktur, in der Governance‑Entscheidungen in wenigen Händen liegen und marginalisierte Gruppen vor allem als „Zielgruppen“ humanitärer Projekte auftauchen. wiki.openstreetmap
Oder es gelingt, die lokalen Praktiken – wie Stammtische, Micro‑Mapping und Equity‑Audits in Städten wie Wien – so zu stärken, dass Governance, Datenprioritäten und Qualitätsmechanismen gemeinsam mit den Betroffenen gestaltet werden. Wien hat mit seinen dichten sozialen Netzen, seiner starken Zivilgesellschaft und der bereits existierenden OSM‑Community alle Voraussetzungen, um hier eine Vorreiterrolle zu spielen. wiki.openstreetmap
Die Frage, die im März 2026 im Raum steht – in Wien genauso wie mit Blick auf Paris im August – lautet daher: Wollen wir eine Karte, die marginalisierte Gruppen „für“ sie sichtbar macht, oder eine Infrastruktur, die sie „mit“ ihnen aufbaut? Die Antwort entsteht nicht im Blogpost oder im Funding‑Announcement, sondern in den nächsten Mapping‑Walks, Stammtischen und Validator‑Trainings – hier, in dieser Stadt.
9 days ago
Agradeço, desde já, a sua leitura…
Dedico este breve artigo aos cinco anos e algumas semanas desde que comecei a editar no OpenStreetMap, e atingi mesmo 400 sessões de edições (aquando do momento de escrita). Eu pelo menos festejei um minuto :)
Na minha opinião, é muito importante contribuir para a sociedade através do OSM, apesar de isto não ser a minha primeira prioridade.
Claro que tenho a vo
9 days ago
Agradeço, desde já, a sua leitura…
Dedico este breve artigo aos cinco anos e algumas semanas desde que comecei a editar no OpenStreetMap, e atingi mesmo 400 sessões de edições (aquando do momento de escrita). Eu pelo menos festejei um minuto :)
Na minha opinião, é muito importante contribuir para a sociedade através do OSM, apesar de isto não ser a minha primeira prioridade.
Claro que tenho a vontade de continuar a editar o mapa, acabando por ajudar aqueles que desfrutarem do site.
Cumprimentos, e até breve.
9 days ago
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