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21/08/2025-27/08/2025
[1] Globe view with Vector Tiles made by SomeoneElse | © SomeoneElse | map data © OpenStreetMap contributors.
Mapping campaigns
- The Wikimedians of Japan User Group took part in the event ‘Promoting the Appeal of Your Local Area with the Power of Digital Technology – Nagahama Castle Town Heritage’ on 22 March this year. During the programme participants toured the area surrounding the Nagahama Hachiman Shrine, capturing photographs for Wikimedia Commons and mapping the neighbourhood through OpenStreetMap.
- Mateusz Konieczny has proposed an automated edit to retag
access=forestryin Poland asmotor_vehicle=forestry. - WilburSunflower is planning to map the gun violence memorials in Albany, NY, for the ‘Compass Roses’ exhibit.
Community
- Kumakyoo has analysed, by means of the
highwaytag, how the current OSM tagging scheme has evolved through a form of ‘swarm intelligence’, a phenomenon where the collective behaviour of decentralised, self-organised systems converges to achieve complex goals. At the same time, he pointed out problems with this status quo, noting that some contributors are holding back their work while waiting for an OSM fork, while others have left the project entirely, either voicing frustration over the never-ending debate about the tagging scheme or departing quietly. - Nlehuby has posted
►
a very detailed blog article on how to map a bus station, including practical advice on how to take field notes and tag bus route relations. - At the State of the Map US, Nicole Siggins gave a talk on what the MapSwipe community has been up to recently and its future direction. The talk explored how MapSwipe might evolve beyond micro-tasking into becoming an OSM editor in its own right, with potential AI and machine learning integration. The MapSwipe community would love to hear from the OSM community about this potential future. Read the write-up and share your thoughts on this possible future in the accompanying diary post.
- Lynn introduced SPOT, a tool for searching OpenStreetMap data using natural scene descriptions.
- oldnab justified their tagging choices for urban recycling points, using Wikidata for operators, and discussed mapping individual containers vs groups, plus tags for access, waste types, and opening hours.
- SafwatHalaby showed a method for efficiently organising the field mapping of unfamiliar areas by walking each path exactly twice, finishing at the starting point.
OpenStreetMap Foundation
- The OpenStreetMap Foundation is set to hold its 19th Annual General Meeting online on Saturday 13 September at 16:00 UTC. The meeting will take place in the IRC chat room #osmf-gm on the irc.oftc.net network. A key item on the agenda is a board election, with three seats available. Eligible members will receive a single email from the online voting service, which will contain a link to their ballot.
Events
- Dr Raquel Dezidério Souto (Virtual Institute for the Sustainable Development) thanked the 462 participants, from 151 cities in eight countries, for taking part in the III Workshop on Participatory Mapping and Social Cartography. You can watch
the recordings of the sessions of the 100% online event, which was held from 20 to 29 August. The book Case Studies in Collaborative and Participatory Mapping and the files and video recordings are available from the Mapping Projects Exhibition at the MPCS2025 website ►. - Explore the Philippines’ culture, art, nature and cuisine, and plan your trip to the State of the Map 2025. You can visit the Manila uMap, which was prepared by the organising committee of the event and find essential info.
- Maik, Christopher Lorenz, and Oliver Rudzick reported ► that FOSSGIS opened an OpenStreetMap booth at both FrOSCon in St Augustin (16 and 17 August) and the Maker Faire in Hannover (23 and 24 August).
- There are still places available for the FOSSGIS-OSM community meeting, which will be held at the Linuxhotel in Essen on the weekend of 19 to 21 September. If you want to participate, you have to register on the wiki.
the recordings of the sessions of the 100% online event, which was held from 20 to 29 August. The book Case Studies in Collaborative and Participatory Mapping 
►OSM in action
- Jveuxdusoleil (I want sun), a French app designed to track sunlight across the streets of Paris, has surged in popularity this year, giving residents a digital tool to secure a coveted sunny spot at their favourite cafe terrace. The app uses sun-positioning algorithms along with building-height data from OpenStreetMap to highlight which terraces are bathed in light and which are in the shade.
Software
- Archit Rathod has completed their Temporary Road Closures Database and API for GSoC 2025, launching a live platform that enables real-time closure reporting and routing for cars, bikes, and pedestrians using OpenLR and OpenStreetMap data.
Programming
- Prompted by a discussion about OSM map projections, Andy Townsend has demonstrated how to display OSM vector tile data in a globe view, emphasising that anyone can render OSM data in any projection they want.
Releases
- Version 2.36.0 of iD has been released, introducing several new usability features including indicators, showing who last modified a feature and when.
Did you know that …
- … OpenSeaMap was created back in 2008 at the Linux Hotel in Essen?
Other “geo” things
- Martin Alzueta, of WhereGroup, presented ► several components for building 3D web maps using MapComponents, a declarative framework for GIS applications.
Upcoming Events
| Country | Where | Venue | What | When |
|---|---|---|---|---|
 | Virtual | Mapatón Nacional de México 2025  | 2025-08-19 – 2025-09-30 | |
 | YouTube @IVIDES | WORKSHOP MPCS 2025 + BOOK RELEASE | 2025-08-27 – 2025-08-29 | |
| OSM World Mappy Hour | 2025-08-29 | |||
| UN Mappers Mappy Hour | 2025-08-29 | |||
 | Aalborg | The Wharf | OSM Aalborg meetup | 2025-08-30 |
 | Columbus | The Old First Presbyterian Church | A Synesthete’s Atlas: Cartographic Improvisations Between Eric Theise & The Hut Improvisers | 2025-08-31 |
| iD Community Chat | 2025-09-02 | |||
 | Salzburg | Bewohnerservice Elisabeth-Vorstadt | OSM Treffen Salzburg | 2025-09-02 |
| Missing Maps London: (Online) Mapathon [eng] | 2025-09-02 | |||
 | Derby | The Brunswick, Railway Terrace, Derby | East Midlands pub meet-up | 2025-09-02 |
 | Stuttgart | Stuttgart | Stuttgarter OpenStreetMap-Treffen | 2025-09-03 |
| OSM Indoor Meetup | 2025-09-03 | |||
 | Brno | Kvartální OSM pivo | 2025-09-03 | |
 | Perímetro Urbano Medellín | Parque Biblioteca Presbítero José Luis Arroyave | SotM LatAm 2025 | 2025-09-04 – 2025-09-07 |
 | Madrid | Online | Mappy Hour OSM España | 2025-09-04 |
| UN Mappers #ValidationFriday Mappy Hour | 2025-09-05 | |||
 | नई दिल्ली | Jitsi Meet (online) | OSM India Online (Remote) Mapping Party | 2025-09-07 |
| Salt Lake City | Woodbine Food Hall | OSM Utah Monthly Map Night | 2025-09-10 |
| Hamburg | Voraussichtlich: “Variable”, Karolinenstraße 23 | Hamburger Mappertreffen | 2025-09-09 |
| Missing Maps – DRK & MSF Online Mapathon | 2025-09-10 | |||
| Bochum | Das Labor, Alleestraße 50, Bochum | OSM-Treffen in Bochum | 2025-09-11 |
| München | WikiMUC | Münchner OSM-Treffen | 2025-09-11 |
| Online | OpenStreetMap Midwest Meetup | 2025-09-12 | |
| København | Cafe Mellemrummet | OSMmapperCPH | 2025-09-14 |
| Delhi | Southwest Delhi (exact venue to be finalized) | 22nd OSM Delhi MapWalk (Southwest zone) | 2025-09-14 |
 | Bistro du Châtelet, Rue du Châtelet 4, Habay | Ardenne belge – Social | 2025-09-15 | |
 | 臺北市 | MozSpace Taipei | OpenStreetMap x Wikidata Taipei #80 | 2025-09-15 |
| Rue du Châtelet 6, Habay-la-Neuve | Ardenne belge – Meeting | 2025-09-15 |
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 Dezidério Souto, Strubbl, Andrew Davidson, barefootstache, derFred.
We welcome link suggestions for the next issue via this form and look forward to your contributions.