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27/08/2026-02/09/2026
[1] Group photo from SotM 2026 in Paris | © SotM 2026 Paris | map data © by OpenStreetMap Contributors.
Mapping campaigns
- Hiki introduced the Deutsche Bahn Metadata Cleanup project, an effort to improve the quality of OpenStreetMap data around German railway stations.
- Denmark’s OpenStreetMap community has made
mapping accessible parking spaces its September 2026 project, encouraging contributors to survey and add missing spaces nationwide to improve the country’s free accessibility data.
mapping accessible parking spaces its September 2026 project, encouraging contributors to survey and add missing spaces nationwide to improve the country’s free accessibility data.Community
- Bigbug21 blogged on the current state of defibrillator mapping in OpenStreetMap, concluding that much has been achieved, but there is still plenty of work to be done.
- While attending State of the Map 2026, Juminet noticed a decline in the influence of big tech companies within OpenStreetMap, suggesting a shift back toward the volunteer contributions that formed the heart of the project in its early days. This contrasted with his experience at State of the Map 2018, when major technology companies were investing heavily in OpenStreetMap mapping.
- Anne-Karoline Distel showed how to map disused fish weirs on OpenStreetMap.
- Rawaz has mapped population data from Iraq’s 2024 census onto OSM administrative boundaries, covering admin levels 2 through 6.
- rphyrin praised Stylus Labs Maps after SotM 2026 as the best mobile OpenStreetMap vector map app they have tried.
- rphyrin plans to share his experiences from attending the global State of the Map 2026 online. He is still writing about the first day, with the remaining days a work in progress.
- Vishal Kumar shared several insights on the role of AI in mapping, from State of the Map US 2026, held 11 to 13 June.
on the current state of defibrillator Local chapter news
- OpenStreetMap US has published its August 2026 monthly newsletter, featuring the OSM US team heading to Paris for State of the Map 2026, an upcoming September Mappy Hour in collaboration with Foursquare, and the announcement of its newest Charter Project, OldInsuranceMaps.
Events
- [1] Volker Krause wrote about his attendance at SotM 2026 in Paris.
- A 360° version of the SotM2026 group photo is now online on Panoramax!
- The official PeerTube channel of State of the Map 2026 can be found here.
- Muki Haklay has shared his impressions of attending State of the Map 2026 in Paris. Muki, Professor of Geographical Information Science at the UCL Department of Geography, won the IEEE Pervasive Computing’s Test of Time Award for his 2008 paper on OpenStreetMap.
Education
- Lucy Kago reported, as a UN Mappers’ ambassador, that UN Mappers Kenya has completed its first ever Youth Climate Mapping Externship, a seven-week virtual programme designed to equip young Kenyans with real geospatial tools and apply them to climate challenges in Nairobi. Nineteen university students participated in the programme. The initiative had the support of IVIDES DATA (as a full sponsor), GeoMind Solutions and Geospatial Developers (as technical partners), and Community Mappers Kibera (as community partner). You can see the results on the UN Mappers’ blog.
Humanitarian OSM
- HOTOSM interviewed the CoMaps team about how the app was used to help rescuers after the earthquakes in Venezuela.
Maps
- Cody Blatt has created DepthScout, a depth-mapping platform designed to aid fishing, which uses shoreline data from OpenStreetMap.
- Map4 has released a free trial version, limited to 50 queries per day, of their US telecom fibre intelligence dashboard, built on top of OpenStreetMap basemap data.
- The Plataforma latinoamericana y del caribe por la justicia climática (Latin American and Caribbean platform for climate justice) maintains ► a uMap for mapping ‘false solutions’ to the climate crisis, those which claim to advance the protection of the planet and its inhabitants through approaches that include deception, technical shortcomings, so-called technological innovation, and rhetoric but which perpetuate consumption and the hoarding of wealth as we know it. The initiative is a collaboration ► of organisations from 15 Latin American countries.
►
OSM in action
- The California Ocean and Coastal Monitoring Inventory is an interactive dashboard of ocean and coastal monitoring programmes operating within 12 nautical miles of the California coast, using basemap data from OpenStreetMap.
Open Data
- The Leibniz Supercomputing Centre tooted that it is making its archive of Landsat data accessible ►, with support from the Technical University of Munich and the German Aerospace Centre.
Software
- Ashuttl has made linecast, a free open-source collection of terminal apps for weather, radar, sunshine, moon data, tides, and maps that uses public data sources including OpenStreetMap-derived vector data.
- Inspired by a recent Mapterhorn talk at State of the Map 2026, rphyrin has developed a web app that accepts coordinates pasted from JOSM and displays an interactive 3D terrain visualisation. The app can help JOSM users better understand the three-dimensional geographic context of the area they are currently mapping.
Programming
- Developer NameError has built Draw.city, a US geography game where players draw circles on a map to estimate populations and explore census demographics and OpenStreetMap points of interest.
- rphyrin has experimented with Sourdough to build a mobile-friendly vector map that treats roads uniformly and prioritises displaying as many mapped points of interest as possible, especially at high zoom levels.
- An agentic bot (Claude Code) ‘explained’ ‘its’ approach to filling in Belgium’s national secondary road route relations on OpenStreetMap in an OSM Diary entry. The community’s response to the edits can be judged from the posts in the OSM Community forum thread.
Did you know that …
- … a curated collection of all European E-roads, an international network of major roads connecting countries across Europe, is mapped in OSM?
Other “geo” things
- Natsuhei Eno, a Senior Policy Officer at the Tokyo Foundation, published an article on the Foundation’s blog discussing what supports regional information infrastructure. Featuring Associate Professor Yasuyuki Matsumoto , of Setsunan University, who researches civic activities using OpenStreetMap and Wikipedia (such as Wikipedia Town and mapping parties), the article highlighted the importance of citizens participating not merely as recipients but as contributors to local information.
- Ryan Christoffel reported that Apple Maps is now showing advertisements to their customers; they will appear both as suggested places in the map and in the search result list with a little blue ‘ad’ text next to them.
- Kaio Bárbara has developed climateBR, a software package that provides tools for downloading, processing, and analysing historical meteorological data from Brazil’s National Institute of Meteorology.
- Science Daily reported that NASA has successfully tested a system that allows satellites to navigate without GNSS by using other spacecraft and debris as landmarks in orbit.
- Neha Arora and Aboudy Kreidieh, of Google Research, reported that coordinating a small fraction of navigation routes in Google Maps can measurably improve driving speeds and reduce emissions across an entire city.
an article on the Foundation’s blog discussing what supports regional information infrastructure. Featuring Associate Upcoming Events
| Country | Where | Venue | What | When |
|---|---|---|---|---|
 | नई दिल्ली | Jitsi Meet (online) | OSM India – Monthly Online Mapathon  | 2026-09-05 |
 | 大阪市 | 中崎町ホール Nakazakicho HALL, Salon de AmanTo天人 (Osaka) | State of the Map Asia 2026 | 2026-09-06 – 2026-09-07 |
 | 臺北市 | MozSpace Taipei | OpenStreetMap x Wikidata Taipei #92 | 2026-09-07 |
 | Madrid | Online | Mappy Hour OSM España | 2026-09-08 |
 | Braunschweig | Stratum 0 | Braunschweiger Mappertreffen im Stratum 0 Hackerspace | 2026-09-08 |
| Hamburg | Voraussichtlich: “Variable”, Karolinenstraße 23 | Hamburger Mappertreffen | 2026-09-08 |
| temporärhaus | OSM-Stammtisch Ulm/Neu-Ulm | 2026-09-08 | |
 | Tours | Étape 84 | Rencontre locale de Touraine | 2026-09-09 |
| Berlin | Kastanienallee 7-9, 10435 Berlin | 219. OSM-Stammtisch Berlin-Brandenburg | 2026-09-10 |
| München | WikiMUC | Münchner OSM-Treffen | 2026-09-10 |
| Bochum | Das Labor, Alleestraße 50, Bochum | OSM-Treffen Bochum | 2026-09-10 |
 | Zürich | 191. OSM-Stammtisch Zürich | 2026-09-11 | |
 | København | Cafe Bevar’s | OSMmapperCPH | 2026-09-13 |
| Delhi | Too Mikki Tapas, South Extension | OSM Delhi Mapping Party No.32 (South Extension) | 2026-09-13 |
 | Greater London | 1 Cabot Square, 7th Floor, Canary Wharf E14 4QJ | EAW Volunteering Event | 2026-09-14 |
| CartONG : Mapathons en ligne 2026-2027 | 2026-09-14 | |||
| Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng] | 2026-09-15 | |||
 | San Francisco | Near BART 24th St. Mission station | Bay Area WikiSalon | 2026-09-15 |
| Lyon | Tubà | Réunion du groupe local de Lyon | 2026-09-15 |
| San Jose | Online | South Bay Map Night | 2026-09-15 |
| Chemnitz | Kaffeesatz, Chemnitz | OSM-Stammtisch Chemnitz | 2026-09-15 |
| Bonn | Dotty’s | 204. OSM-Stammtisch Bonn | 2026-09-15 |
 | Stainach-Pürgg | Online | 22. Österreichischer OSM-Stammtisch (online) | 2026-09-15 |
| Online | Lüneburger Mappertreffen (online) | 2026-09-15 | |
| St. Gallen | Rosenbergstrasse 59, 9000 St.Gallen | Map The Climate! Ein Mapathon | 2026-09-16 |
| Köln | Lokal K, Hackländer Straße 2, Köln-Ehrenfeld | OSM Stammtisch Köln | 2026-09-16 |
| Nantes | COntrib’atelier | 2026-09-16 | |
| MJC de vienne | Réunion du groupe local de Vienne | 2026-09-16 | |
| Kiel | Kieler Innovations- und Technologiezentrum | OSM auf der Kielux 2026 | 2026-09-18 – 2026-09-19 |
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, Raquel Dezidério Souto, Strubbl, Andrew Davidson, barefootstache, derFred, mcliquid.
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