(English) weeklyOSM 579

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How old is that building in Penza (Russia)? [1] map data © OpenStreetMap contributors | © 2021 how-old-is-this.house, data sources: Росреестр, Минкультуры, «МинЖКХ», Викигид, Викиданные, Викимапия

Mapping campaigns


  • Anim Mouse noticed a changeset that spans four continents and contains only a single change. Although it was pointed out in the discussion that a changeset should contain as small an area as possible, sometimes it is not possible when the element itself is very large, in this case France, including its overseas territories and départements.
  • Bora Can wrote (tr) > de about his efforts to clear up divergent district boundaries in Turkey.
  • Russ Garrett summarised his thoughts on how various recently released government open datasets might be used to improve address mapping the UK.


  • State of the Map Africa 2021 is happening online on 19 to 21 November. Listen to the July episode of the Geospatially podcast, featuring Geoffrey Kateregga who discussed SotM Africa and how they will bring OSM communities in Africa together.
  • Manoj, Ark, and Awantika took a look at the history of OSM Kerala and its continued efforts to strengthen the use of OSM in Kerala (India) for disaster response and community development.
  • One has learnt that Christoph Hormann’s ‘couple of words’ tend to be a bit longer than the phrase implies. His theme discussed this time is the implications of the draft OSMF Etiquette Guidelines. Although a DeepL translation to English is provided, he emphasises that this will lack nuances of the original German text: an issue which he feels affects any contributor needing to use English when it is not their native language.

OpenStreetMap Foundation

  • weeklyOSM strives to notify you, our readers, about upcoming OSMF board meetings. Unfortunately, at present announcements of upcoming meetings are being made within a week of the meeting, so it is not possible for us to announce them accordingly. If you are interested in the public board meetings, you should follow the OSMF mailing list, subscribe to the Board’s iCalendar feed, or keep an eye out for them in our Upcoming Events section.
  • Former OSMF Board member Peter Barth expressed his concern about the attribution of OSM on maps provided through Mapbox services.


  • The Community Working Group (Humanitarian Open Mapping) organised by HOT invites local OSM community organisers, leaders and members (new and old) to come together and share their tips, tricks and challenges related to starting and sustaining local OSM communities. Two Zoom meetings will be held on Friday 3 September at 06:00 UTC and 16:00 UTC. Register if you wish to participate.

Humanitarian OSM

  • HeiGIT is working on routing that incorporates current data from disaster areas, such as areas subject to flooding or destroyed streets. To help with the current flood disaster in Germany and neighbouring countries, HeiGIT has taken up-to-date flood data derived from satellite images by the European Copernicus Emergency Mapping Service (EMS) and integrated them into the routing services developed by HeiGIT.
  • In mid-August HOT, in collaboration with local communities in the respective regions, activated two disaster response campaigns: Haiti Earthquake 2021 and Mediterranean Fires 2021. You can check the updates here and see other active responses.
  • The Humanitarian OpenstreetMap Team (HOT) Summit 2021 Call for Proposals has been extended. The new deadline is Tuesday 31 August.
  • The finals of the 2021 HOT Staff OSM FIGHT Heavyweight Championship were held at a recent HOT all staff meeting.


  • [1] Ever wondered how old that building in Penza (Russia) is? Then this is the website for you. In addition to OSM, data from wikivoyage, wikidata and wikimapia, among others, have been used.
  • Nicolelaine is still having trouble getting their uMap of world post boxes to work, due to Overpass timeouts. Any help would be appreciated.
  • PlayzinhoAgro shared (pt) > de the results of a survey of online map use and knowledge of OpenStreetMap in Brazil.


  • Recently we covered the KGeoTag application. There is a similar application called geotagging, a tool for manipulating the geographical information stored in JPEG images (Exif metadata). The geographical information could be obtained from GPX or manually by drag-and-drop. The application is packaged as an EXE or as a flatpak. Feel free to contribute translations or code.
  • Trufi’s OSM-powered bike app will put bikes at the centre of multi-modal journeys like no other app. The app will launch in Hamburg at the ITS World Conference.


  • The final reports for projects that were part of the 2021 Google Summer of Code are in:
    • Vuong Ho’s opening hours tag evaluator
    • Zohaib Ansari’s stand-alone library to display multiple versions of any selected OSM element and allow comparison between different versions
    • Antonin Jolivat’s Nominatim QA reports extraction tool.

Did you know …

  • The Panorama of the River Thames? This is a website which shows panoramic views of parts of the River Thames through Greater London both from watercolours of 1829 and photographs from the present day.
  • … that you can use OSM Smart Menu in Google Chrome or Mozilla Firefox to open links related to OpenStreetMap, based on parameters from the current page? It helps OpenStreetMap contributors to easily switch between different maps and analysis tools.
  • … that LearnOSM is dedicated to helping people learn how to map in OpenStreetMap? The guides start from the basics of what OSM is and how to get mapping, through to advanced topics such as osm2pgsql and manipulating data with Osmosis.
  • … you can check out who is the busiest on MapRoulette by viewing the leaderboard?

OSM in the media

  • Woxx carried a couple of articles on OpenStreetMap. The first (de) > en is an introduction to OpenStreetMap and features an interview with OSMF Board member Guillaume Rischard. The second (de) > en article describes to readers a number of ways that they can also participate in OpenStreetMap.

Other “geo” things

  • Médecins Sans Frontières (MSF) is seeking a Geographical Information Systems Advisor. Based preferably in Amsterdam, Berlin, London, or Nairobi. Other locations where MSF has offices will also be considered.

Upcoming Events

Where What Online When Country
潍坊市 OpenStreetMap(中国大陆)第一次线下聚会 osmcalpic 2021-08-20 – 2021-08-30 flag
Autrans-Méaudre en Vercors WikiCamp L’Escandille osmcalpic 2021-08-28 – 2021-08-29 flag
Bogotá Distrito Capital Resolvamos notas de Colombia creadas en OpenStreetMap osmcalpic 2021-08-28 flag
OSMUS Slack Summer mapping party osmcalpic 2021-08-28 – 2021-08-29
Hlavní město Praha Missing Maps CZ Mapathon 2021 #5 osmcalpic 2021-08-31 cz
San Jose South Bay Map Night osmcalpic 2021-09-03 flag
Kurmin Musa Community Webinar: Local OSM community building: Tips, tricks and challenges osmcalpic 2021-09-03 ng
Fortaleza Encontro de usuários OSM do Ceará, Brasil. osmcalpic 2021-09-04 flag
Bogotá Distrito Capital Resolvamos notas de Colombia creadas en OpenStreetMap osmcalpic 2021-09-04 flag
京田辺市 京都!街歩き!マッピングパーティ:第26回 一休寺 osmcalpic 2021-09-04 jp
OSM Africa Monthly Mapathon: Map Malawi osmcalpic 2021-09-04 – 2021-10-04
Greater London Missing Maps London Mapathon osmcalpic 2021-09-07 flag
Landau an der Isar Virtuelles Niederbayern-Treffen osmcalpic 2021-09-07 flag
Stuttgart Stuttgarter Stammtisch (Online) osmcalpic 2021-09-07 flag
OpenStreetMap Michigan Meetup osmcalpic 2021-09-09
Nordrhein-Westfalen OSM-Treffen Bochum (September) osmcalpic 2021-09-09 flag
Arlon Réunion des contributeurs OpenStreetMap, Arlon osmcalpic 2021-09-13 flag
Hamburg Hamburger Mappertreffen osmcalpic 2021-09-14 flag
Karlsruhe Karlsruhe Hack Weekend osmcalpic 2021-09-17 – 2021-09-19 flag

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 Nordpfeil, SK53, Sammyhawkrad, TheSwavu, derFred, s8321414.