Made in Tanzania, serving Global

March 2025 wasn’t just the end of a cohort—it marked the beginning of a movement.

At the Better Tomorrow Program Cohort 1 Closing Ceremony hosted by ROOTGIS, we saw young innovators pitch projects that tackled everything from waste management to housing access. But one powerful element tied these innovations together—geospatial intelligence powered by open data. And more specifically: OpenStreetMap.

🗺️ Why OpenStreetMap Matters

OpenStreetMap (OSM) is more than a map—it’s a platform. A canvas. A growing, living dataset built by volunteers and available to everyone. In a country like Tanzania, where commercial mapping tools are often inaccessible or outdated, OSM becomes a critical tool for innovation.

… See full entry

Leaving my country, Nigeria, to attend the 2024 SOTM conference at the University of Nairobi, Kenya was a thrilling and enlightening experience for me. The whole event immersed me in the dynamic world of open mapping. The conference brought together various groups of professionals in the field of open mapping and it was great to finally see them in person. Most importantly, I was able to reconnect with YouthMappers Regional Ambassadors, fellow YouthMappers from Africa, Asia, America and wonderful OSM contributors from the globe.

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Gangveien mellom Bregneveien og Symreveien i Tomter, Indre Østfold kommune står som kjørevei. Ber om at dette korrigeres til gangvei Med vennlig hilsen

Jahn-Oluf Skonnord

Les bornes de servitude militaire des bornes deployees autours des forts et place militaires au 19eme siècle. Elles délimitaient trois zones autours des terrains militaires dans lesquels il était interdit de construire ou planter. Certaines de ces bornes peuvent encore être trouvées dans la nature. Elle ne doivent pas être confondues avec les bornes de propriete qui délimitent les frontières de terrain militaire et qui sont octogonales et non carres comme les bornes de servitudes.

Note: Dans cet article, je donne ma version de la cartographie de ces bornes. Je n’ai pas trouve beaucoup d’informations sur la manière de cartographier des bornes alors j’ai bricole un ensemble de tags que je trouve cohérents.

Comment cartographier

Sur un node specifique pour cette borne, on ajoute les tags suiavnts:

• historic=boundary_stone
• inscription=*
• format=squared_stone

Je me base principalement sur la cartographie des bornes de fontieres.

This is part of a series of blogs about my journey working on a collaborative Field Mapping tool, now called FieldTM:

pt1 here.

pt2 here.

pt3 here.

pt4 here.

Field Mapping: The Past

Paper Era

• People actually used to have to write things down on paper, remember information in their heads, and talk to one another - damn! However ever did they manage?

• In all seriousness, coordinating a mapping campaign before the 1990’s was probably a logistical nightmare. Paper maps, scrawled notes by field teams that had to be coordinated at the start of the day, then sent on their way.

• No doubt, labour intensive and prone to error.

Digital Transition

• With the advent of handheld GPS devices in the 1990s and early 2000s, digital coordinates could be logged in the field.

• Paired with rugged PDAs or laptops running early GIS software like ArcPad, fieldwork became more accurate and geospatially aligned - but the workflow was still often clunky and required post-field data syncing.

  

… See full entry

Jo White MP Worksop Office

Kirtlington is not very well mapped Nor is weston on green business park - depends how much detail, e.g. compare to iSlip

Você já parou pra pensar no que essa imagem representa na vida de quem tenta encontrar um endereço e não consegue?

Você já parou pra pensar no que essa imagem representa na vida de quem tenta encontrar um endereço e não consegue?

Pra quem mora em um bairro onde a rua sequer tem nome no mapa? Pra quem chama um Uber ou 99 e o motorista não encontra o local? Ou pra um estudante que precisa fazer um trabalho de faculdade, mas as ruas da sua comunidade nem aparecem direito no mapa? Isso tem um nome: dignidade.

Dignidade é poder dizer onde você mora. É receber suas compras online.

É chamar um carro de aplicativo sem preocupação. É poder passar seu endereço pra um amigo, pra um parente, pra um vizinho. As prefeituras, o governo estadual e federal deveriam olhar com mais seriedade para o registro de ruas, bairros, vilas e distritos. Se isso fosse feito de forma justa e abrangente, o Brasil não seria esse imenso vazio cartográfico, onde tantas ruas seguem sem nome.

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筆者は、この表示の存在を当たり前のものと認識していたのだが、実際は日本固有のものらしい。
設置は航空法施行規則第79条十七（e-Gov）に定められており、日本国内のほぼすべての空港にあるようです。この規定について、上位存在となる国際条約などは確認できませんでした。また、AIPドキュメントでも当該表示について言及を確認できませんでした。

タグ利用による地物の明示

aeroway=navigationaid
navigationaid=id
inscription=(実際の表示文字列)
colour=(文字色)

この組み合わせでのエリアタグ付けとしました。 navigationaidがVisual航行向け支援の要素が強いということ、
AIPドキュメントで id = 識別・標識 という訳語が充てられていること、
から決定しました。

マッピング

脳内の日本国内飛行場一覧をたどりながら北から南へ、鹿児島県までをプロットしました。
一部空港では設置が確認できなかったこと、および、低木植樹による表現をしていると思われる地物についてはいったん見送りました（長崎など）
また、日本国外になりますが、韓国の済州島および仁川でそれぞれ表示が航空写真で確認できたため同様マッピングしました
変更セットは #164596461 と #164600841 になります

了

Am the community leader. I participate different meetings organized by unique mapper network. E.g organized orientation for new babies. And I also joined with the meeting today.

เครือข่ายมือถือ

Ich habe versucht den Möhnetalradweg einzutragen: osm.org/relation/18945126 und dann festgestellt, daß jemand anders das an anderen Stellen auch schon begonnen hat: osm.org/relation/12548746 Wie fügt man das Ganze zu einer einzigen Relation zusammen, ohne daß alles einzeln als Handarbeit erledigt wird?

On the 28 of March, I just discovered that our Village is not well represented in the wikipedia map, as well as the article about our community on wikipedia is not comprehensive, as i was researching further about my local community online.

That was the beginning of my journey on openstreetmap, as I’ve decided to become a contributor to help improve the visibility of our community on the world map.

Though I’m starting as a novice as at today been the 4th of April, 2025, I’m determined to walk myself through the process of learning how to edit on open street map. As I’ve started on a self learning steps, I look forward to maybe joining a community of mappers, finding someone as a guide and becoming a full member of openstreetmap community.

Геоинформационный портал Калужской области - набор электронных картографических сервисов, обеспечивающих открытый доступ заинтересованным пользователям к массиву пространственных данных нашего региона посредством глобальной сети Интернет. Сссылка

Реестр парковок г. Калуги

Реестр сведений о парковках общего пользования, расположенных на территории муниципального образования “Город Калуга”.

Ссылка

Комплексная схема организации дорожного движения города Калуги

Содержит перечень дорог с их категорийностью и другими характеристиками (см. файл Отчет КСОДД).

Ссылка

АО “УКОН”

Информация о городских ярмарках и банях.

Ссылка

This blog post is part of a series of blog posts about the new OSM file format “OMA”. This is the fifth post. At the end of the article you’ll find links to the other blog entries.

 

When relations where introduced (in 2008, if I remember correctly) I was a big fan of them. They sounded great and promising. Meanwhile I think, it was a mistake to add relations, and if I where to decide I would probably remove them from OSM and replace them with something better.

Let’s have a closer look: Nodes and ways (and areas) are simple: A geometry with some properties. Relations do not share this simplicity. They share the properties, but they do not have their own geometry. Instead, they contain references to some elements. This makes things complicated.

I could write several articles about relations and why I think they are a bad idea, but this article is about relations in Oma files, so I’ll leave it at that for now.

 

Multipolygons

Instead, I’m going to take a closer look at what is currently done with relations. According to taginfo, more than half of all relations are multipolygons, that is, a collection of areas. Since we’ve already got areas in Oma files, this is easy to handle: All multipolygons are converted to one or more areas.

… See full entry

مراعي ابل

مراعي حيوانات

مراعي

En el contexto de una clase de Cartografía Digital que estoy dictando en una institución de educación superior, les mostré OSM a mis alumnos para que sepan de este interesante proyecto que yo conocí el 2019. No me había interesado mapear hasta ahora que vi que falta mucha información y además que la existente contiene muchos errores.