Przejdź do głównej zawartości



I’m finally back to mapping after an unplanned 4-month break.

I usually have a casual but relatively consistent approach to mapping: every time I have to go somewhere new and my exact destination isn’t in OSM, I add it once I arrive; if the opening times of a place I visit regularly change, I update them, and so on. As of late, though, this just hasn’t happened. Either map data has become good enough for my everyday needs in Gothenburg, Sweden or I’ve been paying less attention than usual. Probably a little bit of both.

Right now, on the other hand, I’m visiting my family in Agrigento, Italy, and mapping is the perfect holiday activity for me: it can (to some extent) be done without a computer, which is a nice change of pace, and it gives me an excuse to be outisde, enjoy the warm weather and take all the side streets I haven’t explored before or have forgotten about. Plus, there’s so much to do here compared to Gothenburg!

Today I simply went for a walk and answered a bunchn of quick questions on StreetComplete. In the next few days, I want to try something more systematic, like updating information about what’s happening inside each of the buildings of the main street: a lot has changed since I last came. I’m also pondering trying to get one or two family members involved; we’ll see.


Started this year with a weekend mapping project: locate and map public traffic camera feeds from citys website.
Day 2 and Im halfway done, about 130 out of ca 260 have live feed links now. Roughly 5 of them werent previously mapped at all.




My New Year’s resolution is to try not to lose any interest in mapping!


How do I do that?


I don’t know.


What about you guys, what is your New Year’s Resolution related to mapping?


এই ম্যাপিং কার্যক্রমে কাতিলা মণ্ডলপাড়া জামে মসজিদের তথ্য হালনাগাদ করা হয়েছে। মসজিদটি নাগা বাজার থেকে প্রায় ৫০ মিটার দূরে অবস্থিত। নিকটবর্তী হওয়ার কারণে নাগা বাজারের মুসল্লিরা নিয়মিত পাঁচ ওয়াক্ত নামাজ আদায়ের জন্য এই মসজিদটি ব্যবহার করেন। এই আপডেটে মসজিদের অবস্থানগত প্রেক্ষাপট ও আশপাশের এলাকার সাথে সম্পর্ক যথাযথভাবে উপস্থাপন করা হয়েছে।


Last weekend I traveled to the west coast of Java, specifically Anyer in Banten. The journey was done by train from Jakarta to Cilegon, followed by a local shared minivan taxi to Anyer.


Hey, this is my first post here and I think it would be fitting if I’d tell all of you why I even created an account here and started making my own edits on OSM.

Background


First, you need to know that I’m a student at Westpomeranian University of Technology in Szczecin in department of computer science. That means that me, and 90% of people there are nerds with interests like: trains, transportation, hacking, programming, opensource and… well… maps.

How it started?


It all started during a normal day at University. We were walking from one building on campus to another when I noticed that my friend has a map open with a lot of pins and some questions on his phone. I asked him what it is and he told me about “Street Complete”. That’s it! I already knew that my ADHD butt found a new hyperfocus for the indefinite amount of time. I installed it and 3 of us started adding the detail information on the map around our campus.

Street Complete era


So… for the next few days I had Street Complete open on my phone during every tram ride and every walk. I wanted to fill every question. This took some time, I answered some question around the Poland in Szczecin, Kielce, and recently in Wałcz.

Taste for more


Right now I’m at my family house in a village where most OSM information where updated several years ago. I went on a walk and - as usual - opened Street Complete. It was great until I came by a few buildings that were demolished few years ago, but were never deleted from the map. I knew that I can’t just leave them there and I couldn’t do this from Street Complete. I went back home and booted my laptop. I opened the OSM editor for the first time and started making edits around the village. Adding houses that were build recently, deleting stuff that no longer existed, updating the zones, etc.

Before I realized I got hooked. It’s so satisfying to make some edits and then see the results. I’ve been making edits everyday for few days ago. I joined community Discord, and learnt quite a few things about how OSM and editor works.

And that’s where we are now… I think I’ll stay here making more edits and updating things that need to be updated. I’ll mainly work on Szczecin and Wałcz, since those are the two places I know the best, but I might make some changes in different places from time to time as well.

Thank you to anyone that read this, I hope you’ll have a great day / night.


My diary entries are all my own thoughts and do not represent OpenStreetMap, The Humanitarian OpenStreetMap Team (HOT) or any organisation using the HOT systems. Any errors are all my own work.


I was visiting Sa Pa, Vietnam, and navigating with Organic Maps. I was looking for a street that would bring me back to the city center. I could not see any on OSM or Google Maps. I walked for a while and was able to see a street that led in the right direction. It turns out that it connected to another street that brought me where I wanted to go. This made me realize how much of the useful information in maps depends on people walking, running, or commuting through those streets. You cannot see these kinds of streets from satellite images. You can only know them, but knowing them, you may not use GPS tracking to record them. I think this leaves only runners and anyone who likes walking to discover most of the streets that are not currently on the map.


কাতিলা দারুস সালাম ক্বওমী মাদরাসা রাজশাহী জেলার বাগমারা উপজেলার নিচু কাতিলা এলাকায় অবস্থিত একটি পরিচিত ক্বওমী ধর্মীয় শিক্ষা প্রতিষ্ঠান। মাদরাসাটি নাগা বাজারের উত্তর পাশে অবস্থিত এবং নাগা বাজার থেকে আনুমানিক ১২০০ মিটার দূরত্বে অবস্থান করছে, যা স্থানীয় সড়ক ও পায়ে চলাচলের মাধ্যমে সহজেই পৌঁছানো যায়। প্রতিষ্ঠানটি আশপাশের গ্রামগুলোর শিক্ষার্থী ও ধর্মপ্রাণ মানুষের কাছে সুপরিচিত।

এই ডায়েরি এন্ট্রিতে মাঠ পর্যায়ে যাচাই (ground survey) ও স্থানীয় তথ্যের ভিত্তিতে মাদরাসাটির সঠিক অবস্থান, নাম ও প্রাসঙ্গিক ট্যাগ যাচাই করে OpenStreetMap–এ সংযোজন/হালনাগাদ করা হয়েছে। এর মাধ্যমে নিচু কাতিলা, নাগা বাজার ও পার্শ্ববর্তী এলাকার শিক্ষা প্রতিষ্ঠান সংক্রান্ত ভৌগোলিক তথ্য আরও নির্ভুল ও ব্যবহারযোগ্য হবে বলে আশা করা যায়।




Panama Canal Authority–Supported Open Data Initiative

Background and Context


The Los Chorros de Ciri basin, located west of Panama City, is a hydrologically and socially important watershed that supports rural communities while contributing to regional water security. In recognition of this dual importance, the Panama Canal Authority (ACP) funded a high-resolution mapping project focused on community-oriented outcomes and long-term public benefit.

This project represents a shift away from closed, single-purpose GIS deliverables toward open geospatial data that can support community planning, environmental stewardship, and collaborative mapping initiatives.

Project Objectives


The mapping effort was designed around the following goals:
  • Generate high-accuracy base mapping of the Los Chorros de Ciri basin using drone photogrammetry
  • Identify and document community presence within the watershed
  • Release derived GIS products for public and open-source use

Data Acquisition and Processing

Drone Photogrammetry Surveys


Multiple drone missions were conducted in early September 2025, covering discrete but adjacent blocks within the basin. The surveys achieved consistent, high-resolution coverage suitable for both environmental and community-scale mapping.

Key characteristics of the datasets include:
  • Area coverage exceeding 9 square kilometers across all survey blocks
  • Ground sampling distance between 4 and 5 centimeters
  • Full image reconstruction for all flights
  • Dense point clouds exceeding hundreds of millions of points per block
These datasets were processed using WebODM Lightning and generated orthophotos, digital surface models, and digital terrain models suitable for GIS analysis and mapping.

Accuracy and Quality Control


Survey accuracy was evaluated using GPS and 3D error metrics derived during processing. Reported results indicate:
  • Horizontal accuracy (CE90) generally below 0.6 meters
  • Vertical accuracy (LE90) generally below 0.7 meters
  • Stable reprojection errors and consistent feature reconstruction across blocks
These accuracy levels support reliable mapping of buildings, paths, waterways, and land-use features within the basin.

Community Mapping Focus


A core outcome of this project was the explicit identification of community features that are often underrepresented in national or commercial datasets. These include:
  • Rural housing clusters
  • Informal access roads and footpaths
  • Agricultural clearings
  • Local watercourses influencing daily life
By deriving vector data from high-resolution orthophotos and terrain models, the project enables communities to be more accurately represented in shared geospatial platforms.

Open Data and Public Release


All derived GIS products from this project were explicitly cleared for public release. This enables their use for:
  • Community mapping and participatory planning
  • Integration into open platforms such as OpenStreetMap
  • Academic and NGO research
  • Watershed management and disaster preparedness
The decision to release these datasets reflects a broader commitment to open data principles and public value.

Reflections


The Los Chorros de Ciri project demonstrates that professional-grade GIS workflows can serve both institutional needs and community interests. By prioritizing openness and reuse, the project helps ensure that publicly funded geospatial data contributes to shared knowledge, transparency, and long-term community benefit.



কাতিলা সরকারি প্রাথমিক বিদ্যালয় রাজশাহী জেলার বাগমারা উপজেলার কাতিলা গ্রামে অবস্থিত একটি সরকার পরিচালিত প্রাথমিক শিক্ষা প্রতিষ্ঠান। বিদ্যালয়টি নাগা বাজারের নিকটবর্তী হওয়ায় এটি শুধু কাতিলা গ্রামের নয়, আশপাশের এলাকার শিশুদের জন্যও একটি গুরুত্বপূর্…




DBSN (DataBase di Sintesi Nazionale) is a database containing the most significant territorial information in Italy. It is developed by IGM (Istituto Geografico Militare) and is available in ODbL, as stated on its website.



আজ আমি রাজশাহী জেলার বাগমারা উপজেলার কাতিলা গ্রামে অবস্থিত নাগা বাজার এলাকায় মাঠ পর্যায়ের পর্যবেক্ষণ (field survey) পরিচালনা করি। নাগা বাজার–মৌলভীবিভা সড়ক দিয়ে চলাচলের সময় লক্ষ্য করি যে, প্রধান সড়কের পাশে একটি গ্রামীণফোন সেলুলার টাওয়ার স্থাপিত রয়েছে,…


I am going to make some improvements to the Walla Walla Washington area over the next week. I’ve just found the Rapid editor uses the Microsoft Building Footprint data to suggest features. That’s excellent. Speeds things up significantly.

I am going to make some improvements to the Walla Walla Washington area over the next week. Ive just found the Rapid editor uses the Microsoft Building Footprint data to suggest features. Thats excellent. Speeds things up significantly.



Today while looking at the hand drawn parcel maps that the county provides I learned the creek that runs through my neighborhood has changed it’s name. On the maps it’s called Sulphur Spring Creek. On all the other maps I’ve seen, road signs, and from what we locals call it, it’s just Sulphur Creek. There’s even a nature center / animal rescue that is named for the creek. They don’t use the spring in their name either.


The Belgian OSM community is importing buildings from governmental data into OSM for some years now. In December I was supposed to present a analysis about this process regarding the import of buildings data from the PICC, the source of data for the …


In regards that the tool osm.wikidata.link works best with smaller administerey areas I will break it down on the municipality level(Kommun in Swedish) we have 290 in Sweden.



I´m trying to start a project to learn SPARQL to be able to get on how many of the 63 00 lakes which are in swedish wikipedia/wikidata has their wikidata tag on the OSM element.


Honestly, I have been reading everybody’s diary entries and diving in and looking at all the different areas and detail and I forgot how I even got here! NO idea but I am very intrigued I do not know how much I will have to contribute but I’m determined to figure this all out! I’m fresh meat here amd have never heard of openstreetmap until I landed in the middle of Nigeria very far from home…safe travels and Merry Christmas from Michigan 🇺🇸💋

Love and Light Aphrodite888


I was doing some Unmapped Small Town USA work this evening, and realized that I had tagged a bunch of probable grain silos in other areas as buildings, specifically in Arbela, MO, and Granger, MO, so I’ve gone back in and corrected those to more accurately reflect their purpose. Apologies to Arbela and Granger!

Otherwise, Dover, KY showed up on Unmapped Small Town USA. There’s some great progress already, but still more to do, so I’m taking advantage of some holiday downtime to fill in more buildings.

Otherwise, I hope you have a lovely Christmas Eve, if that is your custom, and a lovely Christmas Day, if that is your custom. If not, I hope you have a very Merry Thursday. :)


নাগা বাজার রাজশাহী জেলার বাগমারা উপজেলার কাতিলা গ্রামের একটি গুরুত্বপূর্ণ বাজার। নাগা বাজার থেকে প্রায় ১৬০০ মিটার দূরে অবস্থিত কাতিলা সবুজ সংঘ হাই স্কুল ও কলেজ, যা স্থানীয় শিক্ষার্থীদের জন্য উচ্চ মাধ্যমিক ও কলেজ পর্যায়ের শিক্ষা প্রদান করে।

বাজার ও স্কুলের ঘনিষ্ঠ অবস্থান এলাকার শিক্ষার সাথে বাণিজ্যিক কার্যক্রমকে সংযুক্ত করে। এই দুই কেন্দ্রের ম্যাপে Node ও Area হিসেবে যোগ করা OSM ব্যবহারকারীদের জন্য এলাকাটিকে সহজে চিহ্নিত ও বোঝার সুযোগ তৈরি করে।


১৫ নং যোগীপাড়া ইউনিয়ন পরিষদ বাগমারা উপজেলার কাতিলা গ্রামের এলাকায় অবস্থিত। এটি নাগা বাজার থেকে প্রায় ১৫০০ মিটার দূরে অবস্থিত। ইউনিয়ন পরিষদ স্থানীয় প্রশাসনিক কার্যক্রমের কেন্দ্র হিসেবে কাজ করে। এখানে ইউনিয়নের বিভিন্ন সরকারি সেবা, নথি, পরিকল্পনা ও নাগরিক সেবা প্রদান করা হয়। নাগা বাজারের সাথে ঘনিষ্ঠ অবস্থানের কারণে এটি এলাকার মানুষের দৈনন্দিন জীবন ও বাণিজ্যিক কার্যক্রমের জন্য গুরুত্বপূর্ণ।


It is both weird and cool to see the map of my community change in apps I use regularly. Before I started actively updating things in OSM I didn’t recognize all the places OSM is used.


Last November, I [Re]Introduced Ultra v3
which introduced a bunch of new features. Today, Im happy to share whats changed in Ultra over the past year.


As a principle, I’ve always tried to use open-source software over proprietary software for any of my digital needs. I’ve personally found open source to be both more accurate and more sensible to use than proprietary alternatives.

One of the very few aspects of my life that had still not adopted open source was maps. I always used both Waze and Google Maps for everything. But whenever I looked at the maps, it felt like something was missing. I looked around, checked the environment, and realized how much of my surroundings simply wasn’t reflected on the screen.

I wanted to fix it, but… Google Maps doesn’t allow you to just add things. And while Waze does have an editor, it’s extremely locked down for the average user. So, I looked up online alternatives.

I discovered OpenStreetMap two months ago, and I found myself in awe of the sheer amount of detail… Far more than Google Maps or Waze could offer. It just so happened that I was on a trip to Barcelona, and I was using CoMaps to navigate. Using CoMaps proved extremely reliable, especially for public transportation. I never missed a metro, I found all my destinations quickly, and it was very easy to get around.

Still riding the Barcelona high, I opened CoMaps back at home and was fairly shocked to see that my neighborhood didn’t exist at all… Where the heck is it?!

So, I got on my computer, logged into OpenStreetMap for the first time, and started using the iD editor. In just a few hours, the rough outline of my neighborhood was there.

Soon enough, I found myself mapping for hours. Even during lectures, I’d have an OSM tab open for casual mapping. Then it escalated. I started bringing my laptop everywhere I traveled to map things on the go. I began using StreetComplete to add missing metadata. I took pictures and videos. Then I started recording GPS traces. And now I’m even considering setting up a full LiDAR mapping mount for my car…

Now I sit at 16k contributions, with over 400 buildings added. My neighborhood is micro-mapped to hell, and I plan to continue this with the rest of my town.

OpenStreetMap is the best.


OSMWrapped is a fun tool that visualizes your personal OpenStreetMap (OSM) mapping statistics — including edits made, countries mapped, and active mapping days.


আজ আমি আমার স্থানীয় এলাকা নাগা বাজার OpenStreetMap–এ যুক্ত করেছি। এটি একটি গুরুত্বপূর্ণ স্থান, কারণ নাগা বাজারের আশেপাশের জনগণ দৈনন্দিন জীবনযাপনের জন্য এই স্থানটি ব্যবহার করে।

নাগা বাজারের বিশেষত্ব হলো এটি তিনটি গুরুত্বপূর্ণ সড়কের সংযোগস্থল। এই সড়কগুলো হলো:

নাগা বাজার – মুলিভিটা সড়ক

নাগা বাজার – বীরকুৎসা সড়ক

নাগা বাজার – ভবানিগঞ্জ সড়ক

এই তিনটি সড়ক এলাকার মানুষকে একে অপরের সাথে সহজেই সংযুক্ত করছে এবং স্থানীয় বাণিজ্য ও যোগাযোগে গুরুত্বপূর্ণ ভূমিকা পালন করে। আমি OpenStreetMap–এ নাগা বাজার যুক্ত করার সময় এ সমস্ত সড়ক ও এলাকাসহ বিস্তারিত তথ্য দিয়ে কাজ করেছি।

এটি আমার ব্যক্তিগত ডায়রিতে সংরক্ষণের জন্য একটি গুরুত্বপূর্ণ অর্জন। OpenStreetMap–এ স্থান যুক্ত করার মাধ্যমে স্থানীয়দের জন্য তথ্য সহজলভ্য হবে এবং ভবিষ্যতে মানচিত্র ব্যবহার ও রাস্তাপথ পরিকল্পনায় সহায়ক হবে।

নাগা বাজারের সঠিক স্থান, ল্যাটিটিউড ও লংগিটিউড, এবং সংযুক্ত সড়কগুলো OpenStreetMap–এ উল্লেখ করার মাধ্যমে স্থানটি আরও বেশি কার্যকরভাবে চিহ্নিত হয়েছে। এই কাজ আমার জন্য শিক্ষণীয় এবং এলাকার ডিজিটাল নথিপত্র তৈরিতে সহায়ক হয়েছে।



One OSM-related activity I spend lots of time on is micromapping recreational areas, such as parks. Manually detailing out areas is satisfying, but Ive also been on the lookout for ways to put my programming skills to use.