weeklyOSM 689



  • Anne-Karoline Distel blogged about mapping Martello towers.
  • KlausG reported on how he had to deal with the direction of validity and the direction of view when tagging road signs and using the direction tag. When indicating a cardinal direction, e.g. with direction=E (for east), the direction is indicated in which the sign is facing – and this is usually opposite to the direction of the road.
  • Valerie Norton explained some of the alternative data sources they use to map hiking trails on OpenStreetMap.
  • The following proposals are waiting for your comment:

    • cycleway=waiting aid to map street furniture and devices for cyclists that are intended to make waiting, especially at traffic lights, more comfortable.
    • historic=millstone to map a large round stone used for grinding grain.


  • Gloria del Puerto, from Paraguay, is the UN Mapper of the month for October.
  • OpenStreetMap Belgium has announced its October 2023 Mapper of the Month: Lorenzo Stucchi.
  • gvwaa blogged on how they systematically mapped the public bookcases in the Greater Longfellow community of Minneapolis.
  • Koreller blogged on how he motivated himself to map Pyongyang, an urban area 15 km wide by 12 km long. It took over a year, from April 2022 to May 2023, to finish this project, particularly adding buildings and roads.
  • mstock explained the workflow of the Programme Committee – Global State of the Map team.
  • OpenStreetMap asked, on Mastodon, for pictures of your preferred map style. Your answer is still missing 😉

Local chapter news

  • OpenStreetMap US announced that AllTrails, a social networking platform for outdoor enthusiasts, has joined as an OpenStreetMap US Supporter Member.


  • On Friday 29 September the DevSeed team, at its office in Ayacucho 🇵🇪, conducted a workshop on OpenStreetMap mapping with the participation of students and professionals from different public and private entities in Ayacucho, Peru.

Humanitarian OSM

  • IHE Delft, in collaboration with HOT, has organised a mapathon to map areas affected by the Moroccan earthquake and Libyan floods.


  • [1] Alex Seidel, aka Supaplex030, tooted that the map style for the ‘Streetscape Map’ (a detailed map based on OpenStreetMap that focuses on the urban landscape and the spatial design of public and street space) is now available on GitHub. Alex has also published an impressive example from Neukölln, a district of Berlin. (We reported earlier with a gif in issue 598 of January 2022.)
  • Igor Sukhorukov has analysed, with his tool openstreetmap_h3, the neighbourhoods of Berlin , Moscow , and several other cities to see if they are attractive to live in.
  • James Killick reviewed how well several map making applications ranging from Esri, Google My Maps, Felt, to Microsoft Excel could map an address list. Meanwhile, Oliver Roick commented on this review.

OSM in action

  • Times change. So do our categories from time to time. ‘Switch2OSM’ is now ‘OSM in action’. In this category we want to point out examples of the use of OSM data. Feel free to recommend such or similar applications to our readers.

    A good first example is the GPS Hiking Atlas . It is a free travel guide that also handles the OSM licence conditions correctly.

  • caos has published a non-representative survey on the use of navigation apps, on GNU/Linux.ch.


  • David Larlet presented the new permissions feature of uMap, which can be set for individual layers. This will help people who have contributive maps to set up a stable/fixed base layer. Further, it allows for even more control over which objects can be edited.


  • Manish Mehra has written a tutorial on how to build a real-time location sharing app.
  • Jacek Galowicz explained how to configure the OpenStreetMap rendering server on the NixOS operating system.
  • Mikhail Sarafanov shared how to use OSM data to select a threshold value of Normalised Difference Vegetation Index (NDVI), derived from Landsat data, in order to identify green zones in cities.


  • Frederik Ramm reported that the Geofabrik regional taginfo servers have been updated to the latest version. This latest version now includes a chronological report feature to see the progress of tag usage.
  • The September 2023 version of Organic Maps has been released.

Did you know …

Other “geo” things

  • OpenCage has released the German edition of their #geoweirdness geography trivia series.
  • James Killick introduced Mappedin Maker, a web application that can automatically convert building floor plans into indoor maps.

Upcoming Events

    BengaluruOSM Bengaluru Mapping Party 2023-10-07flag
    PhiladelphiaBobby Zankel’s Wonderful Sound, Upholstery & Veronica Mercedes Jurkiewicz/Carlos Santiago/Matt Engle/Eric Theise : A Benefit for Fire Museum Presents 2023-10-08flag
    Phường Quán ThánhOSM Vietnam weekly meeting 2023-10-07flag
    City Of GosnellsSocial mapping Sunday: Beckenham 2023-10-08flag
    KøbenhavnOSMmapperCPH 2023-10-08flag
    WashingtonA Synesthete’s Atlas: Cartographic Improvisations Between Eric Theise, Jim Ryan, and Darien Baiza / Tangent Universes 2023-10-09flag
    ChambéryMapathon débutant saison 23/24 CartONG 2023-10-09flag
    HOT Mapathon: Libya Floods 2023 2023-10-10
    Osm2pgsql Virtual Meetup 2023-10-10
    MünchenMünchner OSM-Treffen 2023-10-10flag
    San JoseSouth Bay Map Night 2023-10-11flag
    AbujaState of the Map Nigeria 2023 2023-10-11 – 2023-10-14ng
    BrestRencontre groupe local 2023-10-11flag
    ZürichOSM-Stammtisch 2023-10-11flag
    Lorain CountyOpenStreetMap Midwest Meetup 2023-10-12flag
    HannoverOSM-Stammtisch Hannover 2023-10-12flag
    MontrougeRencontre contributeurs Sud de Paris 2023-10-12flag
    BerlinOSM Hackweekend Berlin 10/2023 2023-10-14 – 2023-10-15flag
    Henrietta TownshipJourney to the Centers of Michigan 2023-10-14flag
    PittsburghA Synesthete’s Atlas: Cartographic Improvisations Between Eric Theise and Trē Seguritan Abalos 2023-10-15flag
    WaitematāFOSS4G SotM Oceania 2023 Conference 2023-10-15 – 2023-10-19flag
    臺北市OpenStreetMap x Wikidata 月聚會 #57 2023-10-16flag
    BerlinMissing Maps – DRK Online Mapathon 2023-10-17flag
    Bonn168. OSM-Stammtisch Bonn 2023-10-17flag
    LüneburgLüneburger Mappertreffen (online) 2023-10-17flag
    OSMF Engineering Working Group meeting 2023-10-18
    ZürichMissing Maps Zürich Mapathon 2023-10-18flag

    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, PierZen, Strubbl, TheSwavu, TrickyFoxy, barefootstache, derFred.
We welcome link suggestions for the next issue via this form and look forward to your contributions.