weeklyOSM 709


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Updated version of potentially blocked changesets [1] | Copyright © HeiGIT | map data © OpenStreetMap contributors


  • [1] Benjamin Herfort, from HeiGIT, has updated his analysis of the OSM contributors who would have run into OSM upload limits between January and October 2023 if the limits had existed back then. The updated version takes the (self-)deleted user accounts (usually vandalism related to the Ukraine/Russia and Israel/Palestine conflicts) into account. There was also a discussion on the OSM Community forum.
  • Jiri Podhorecky has created an environmental thematic map of the town of Český Krumlov, Czechia, by using uMap.
  • Requests for comments have been made for the following proposals:


  • Courtney Cook provided a summary of the various activities suggested to commemorate the 20th anniversary of OpenStreetMap. The call for suggestions was covered previously.
  • Jimmyisawkward blogged on how he maps streams and wetlands.

OpenStreetMap Foundation

  • Courtney Williamson reported that in 2023, the OpenStreetMap Foundation received donations totalling £373,000. Aside from that, OSM also receives ‘in-kind‘ support through donated hardware and other infrastructure.
  • Arnalie Vicario blogged about the OSMF Membership Drive Campaign 2024, details of which can be found on the wiki. Updates were also provided on the OSM Community forum, where feedback is welcome.

Local chapter news


  • UN Maps is offering an online training workshop on validating OpenStreetMap data, intended for experienced OSM mappers, covering the following topics: the UN Maps programme, goals of OSM data validation, tools and techniques, interactions with other OSM contributors, and data validation workflows for various OSM map features. Experience in using JOSM is a prerequisite. Registration is open to all interested English-speaking people until 23:59 UTC on Thursday 29 February.



  • James Westman explained how he overhauled the map style in GNOME Maps by using the technology and artwork from the OpenStreetMap Americana project. This new style is currently available in the ‘Experimental Map’ mode in GNOME 46.
  • Kamil Monicz shared some of the tangible progress they have made on OpenStreetMap NextGen, an improved website and API developed in Python.
  • Placemark the SaaS business has closed, but Placemark the online geodata editor is now open source and starting to get its first contributors. The software can be used to run a self-hosted version or on Placemark Play, as an alternative to Mapbox’s geojson.io.
  • Ruben Lopez gave a presentation, at the last Mapping USA event, on using the Segment Anything Model (SAM) for mapping using DS-Annotate. The DevSeed and GeoCompas team have been integrating SAM into DS-Annotate, as a simple tool for accurate and automated annotation (we reported earlier).
  • Wille Marcel explained the process of moving the OSMCha website from Mapbox’s to OpenStreetMap US’s infrastructure. The migration was completed on Tuesday 13 February.


  • Mary Knize has developed a prototype map rendering engine based on WebAssembly, Rust, and HTML5 Canvas.


Did you know …

  • Wambacher’s OSM software list? Walter Nordmann’s compilation of the many software products that are important in the OSM environment.
  • … about Router Freedom Tracker? This map shows which European countries have implemented the ‘Router Freedom’ policy, which allows people to choose their own router to use with the internet services from their ISP.

Other “geo” things

  • OpenCage explored the ISO 3166-1 alpha-2 country codes that have been removed or changed throughout history, in another of their #geoweirdness series.
  • The Polish Head Office of Geodesy and Cartography announced the installation of three new reference stations for the ASG-EUPOS system. The reference stations monitor the GPS, GLONASS, Galileo, and Beidou satellite systems as part of Poland’s GNSS augmentation service.

Upcoming Events

MapComplete Community Call 2024-01 2024-02-23
Localidad TeusaquilloOpenBeer Bogotá 2024 2024-02-24flag
BengaluruOSM Bengaluru Mapping Party 2024-02-24flag
KarlsruheKarlsruhe Hack Weekend February 2024 2024-02-24 – 2024-02-25flag
PotsdamRadnetz Brandenburg Mapping Abend #1 2024-02-26flag
Saint-ÉtienneRencontre Saint-Étienne et sud Loire 2024-02-27flag
iD Community Chat 2024-02-28
PotsdamRadnetz Brandenburg Mapping Abend #2 2024-02-28flag
DüsseldorfDüsseldorfer OpenStreetMap-Treffen (online) 2024-02-28flag
[Online] OpenStreetMap Foundation board of Directors – public videomeeting 2024-02-29
ŽilinaMissing Maps Mapathon Žilina #12 2024-02-29flag
Comuna 7OpenDataDay Villavicencio 2024 – Capturando datos de arbolado urbano 2024-03-02flag
EssenMesse “Fahrrad Essen”: Digitale Radfahrkarten nutzen und aktualisieren (mit OpenStreetMap) 2024-03-02flag
Localidad TeusaquilloOpenDataDay Bogotá 2024 – Capturando datos de arbolado urbano 2024-03-02flag
Comuna 10 – La CandelariaOpenDataDay Medellín 2024 – Capturando datos de arbolado urbano 2024-03-02flag
EssenMesse “Fahrrad Essen”: Digitale Radfahrkarten nutzen und aktualisieren (mit OpenStreetMap) 2024-03-03flag
San JoseSouth Bay Map Night 2024-03-06flag
Missing Maps London Mapathon 2024-03-05
IJmuidenOSM Nederland bijeenkomst (online) 2024-03-06flag
CamerinoOpen Data Day @ Informatica Unicam: OSM Mapping Party + Datathon 2024-03-07flag
AmsterdamMaptime Amsterdam: Spring Mapping! 2024-03-07flag
WindsorOpenStreetMap Windsor-Essex: Active Transportation Infrastructure Catalogue & Wishlist 2024-03-08flag
DresdenOSM-Stammtisch Dresden 2024-03-07flag
BolognaOpen Data Pax 2024 2024-03-09flag
臺北市OpenStreetMap x Wikidata Taipei #62 2024-03-11flag

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, Minh Nguyen, Strubbl, TheSwavu, YoViajo, barefootstache, derFred, rtnf.
We welcome link suggestions for the next issue via this form and look forward to your contributions.