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11/12/2025-17/12/2025
[1] Interactive Map Dashboard to monitor current disaster mitigation efforts for the recent Sumatra floods and landslides.| © Tilikan Indonesia | map data © by OpenStreetMap Contributors.
Mapping campaigns
- A collaborative mapping campaign is being coordinated by the Virtual Institute for Sustainable Development, IVIDES DATA, and the Social Project Management Centre of the Federal University of São Francisco Valley. The goal is to map the 18 productive rural villages in the government program titled ‘Population Resettlement Programme of the São Francisco Integration Project’, implemented by the Ministry of Integration and Regional Development of the Federal Government of Brazil. A general tagging scheme for mapping rural villages on OpenStreetMap has been developed and is available
at Zenodo.org. The campaign documentation is available on the OSM Wiki, and you are welcome to participate.
at Zenodo.org. The campaign documentation is Community
- GeoCompas shared their 2025 mapping activities, such as participating in national mapathons across Colombia, Mexico, Honduras, Ecuador, and Peru.
- Frederica Gaspari published about her 9 years of OSM contributions, using the OSM Wrapped tool (we reported earlier).
- 00-sq has completely mapped the Cetățuia hamlet in Luncavița, Tulcea, Romania.
- Jwheare has analysed how slipways are tagged along the southeast coast of Scotland.
- PizzaTreeIsland has started mapping
roof:colourtags on buildings in OpenStreetMap and has built a custom-made tool that uses a neural network to automatically predict the correct roof colour tag from aerial imagery. - MapRVA has developed Yesterdays, an interactive web map that allows users to explore thousands of historic photographs of Richmond, Virginia.
OpenStreetMap Foundation
- Courtney Williamson announced the recipients of the 2025 OpenStreetMap Engineering Working Group Microgrant Programme.
Local chapter news
- Katja Haferkorn reported ► that the FOSSGIS community held its online networking meeting on 20 December, drawing more than 20 participants for a discussion focused on the use of AI in geospatial data analysis. The next session is set for 15 April 2026.
►
Education
- Dr Victor Ndubuisi Sunday reported on the AFRIGIST Alumni International Network Online Training Workshop on ‘OpenStreetMap: From Global Action to Local Impact – Leveraging Open Map Data for the Sustainable Development Goals’, which was held on 15 and 16 December.
OSM research
- Christian Mikovits and Thomas Öberseder have published the ‘Land and Sea Use and Change Maps’ report with the results of a study about large wind power installations in the EU (onshore and offshore). They used and validated OSM data on power wind turbines’ geo-locations. The research is part of ‘Wind in My Backyard’, a programme funded by the European Union to stimulate the adoption of wind power as a renewable energy source. You can access the results and other files of the project in the Zenodo repository.
- HeiGIT reported that Andorful and others have published a paper on transparency and trust in collaborative mapping. The research aimed to expose the vulnerabilities and risks associated with the current approach to integrating AI-assisted road recognition data into OSM by examining how these integration practices affect the reliability of crowdsourced mapping platforms and the integrity of their datasets.
Maps
- wydow tooted about the uMap Territoire Numérique Libre for France, created by Adullact (a collective of open data producers) in 2023 and updated this month. The uMap shows the entities that belong to France Numérique Libre .
about the uMap Territoire Numérique Libre for France, created by Adullact (a collective of open data producers) in 2023 and updated this month. The uMap OSM in action
- [1] Tilikan Indonesia has developed ‘Pantau Bencana Banjir Aceh & Sumatra’, an OpenStreetMap-based interactive map dashboard to monitor current disaster mitigation efforts for the recent Sumatra floods and landslides.
- Hans Hack has built an interactive map that lets you explore how much public space is taken up by car parking and how that compares to green and play areas, across all of Berlin, offering insight into how the city allocates its shared space.
- HeiGIT reported that they are developing dynamic routing to support humanitarian response by integrating real-time, mission-specific information from organisations and local communities directly into route calculations.
‘Pantau Bencana Banjir Aceh & Sumatra’, an OpenStreetMap-based interactive map dashboard to monitor current disaster mitigation efforts for the recent Sumatra floods and landslides.Software
- HeiGIT reported that they have released a new version of hiBike for the Climate Action Navigator, which adds two new indicators (Greenness and Detour Factors) to the pre-existing (Bikeable Path Categories, Dooring Risk, Path Smoothness, and Surface Types) ones. They have also extended the summary statistics to provide more actionable information for stakeholders.
- simsee has developed a Chrome plugin that makes it easy to copy the current Mapillary image ID and traffic sign data as OSM tag to be used in iD or JOSM.
- Jonas von Ruette, Bernat Polvillo and Marcio Cataldi shared about SALUS, a wildfire data viewer which was developed in the research project ‘SALUS Wildfire Risk Solutions’, funded by the European Union, to visualise simulated wildfire propagation probability maps and extracted infrastructure data from OpenStreetMap. The data viewer was developed in Python with the libraries Dash and Plotly and based on an example from the Dash gallery.
- Trufi Association’s Volunteer of the Month for December is influencer-geek Max Weber, who volunteers his expertise to improve Trufi’s open-source public transport code.
Programming
- Farshid Hakimy has developed adressSuche, an open-source geocoding API for German addresses, built from Esri Deutschland and OpenStreetMap data sources.
Releases
- Melani Eckle-Elze published about the release of the version 2.1 of Sketch Map Tool, which has introduced advanced algorithms for improved sketch detection, enabling more accurate interpretation of hand-drawn elements such as roads, rivers, and landmarks.
Other “geo” things
- Mario Petzold, of Golem.de, reported that the European Space Agency’s Ariane 6 rocket has successfully delivered two new navigation satellites into medium Earth orbit.
- HeiGIT recapped the ‘Global Digital Health’ Research Alumni Project Week 2025 that brought together international researchers and local experts to discuss advancements in global digital health. HeiGIT joined the discussion on this growing topic and shared its tools and research in geo-informatics applications to global health.
- Lauren Leek has published about restaurant recommendations biased by geo-applications in an interesting blog post: ‘How Google Maps quietly allocates survival across London’s restaurants – and how I built a dashboard to see through it’.
- A group of journalism students, from the Axel Springer Academy for Journalism and Technology, have analysed AIS data (the automatic identification system that broadcasts ship positions) to detect anomalous vessel movement patterns that may be linked to recent drone swarm incidents in Europe.
Upcoming Events
| Country | Where | Venue | What | When |
|---|---|---|---|---|
 | Stainach-Pürgg | Online | 19. Österreichischer OSM-Stammtisch (online)  | 2025-12-18 |
| UN Mappers Mappy Hour | 2025-12-19 | |||
 | Mumbai | Khodadad Circle, Dadar | 5th OSM Mumbai Mapping Party – Dadar | 2025-12-19 |
| OSM World Mappy Hour | 2025-12-19 | |||
 | Potsdam | Luisenplatz, Potsdamer Weihnachtsmarkt | Potsdamer Mappertreffen | 2025-12-19 |
| Bengaluru | Basaveshwara Nagar | OSM Bengaluru Mapping Party | 2025-12-20 |
 | MAP Mercator museum | OpenStreetMap Belgium at the MAP-Mercator museum | 2025-12-20 | |
| Kalyani Nagar | TomTom, Shanti One, Ramwadi, Pune | Indoor Mapping Party @ TomTom Pune | 2025-12-20 |
| Cinestar Fulda | Jahresabschlussmapping | 2025-12-21 | |
| Missing Maps : Mapathon en ligne – CartONG [fr] | 2025-12-22 | |||
| Stadtgebiet Bremen | Online und im Hackerspace Bremen | Bremer Mappertreffen | 2025-12-22 |
| Siliguri | Panitanki More | 11th OpenStreetMap West Bengal Mapping Party | 2025-12-27 |
| MAP Mercator museum | OpenStreetMap Belgium at the MAP-Mercator museum | 2025-12-27 | |
| New Delhi | online | OSM India×TomTom Online Mapathon | 2025-12-28 |
| MAP Mercator museum | OpenStreetMap Belgium at the MAP-Mercator museum | 2026-01-03 | |
| Braunschweig | Stratum0 | Braunschweiger Mappertreffen im Stratum0 Hackerspace | 2026-01-03 |
| नई दिल्ली | Jitsi Meet (online) | OSM India – Monthly Online Mapathon | 2026-01-04 |
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 HeiGIT, IVIDES.org, MatthiasMatthias, Raquel Dezidério Souto, Strubbl, Andrew Davidson, barefootstache, derFred.
We welcome link suggestions for the next issue via this form and look forward to your contributions.