Introduction

Hi everyone! I’m Archit Rathod, a Computer Science Master’s student at the University of Illinois Chicago and a passionate open-source contributor. My interests lie at the intersection of geospatial technologies, backend systems, and applied machine learning. Over the years, I’ve built full-stack web platforms, worked on real-time traffic modeling, and contributed to research in social networks and AI ethics.

This summer, I’m thrilled to be a Google Summer of Code 2025 contributor with OpenStreetMap, where I’ll be building a system to make navigation smarter and safer through real-time road closure data. I’m deeply grateful to the OSM community and my mentors for this opportunity, and I’m excited to learn, collaborate, and give back.

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Project Description: Temporary Road Closures Database and API

OpenStreetMap provides excellent static map data, but temporary road closures, like construction, accidents, or local events, are often missing or delayed. This project addresses that gap.

I’m developing a centralized platform for real-time road closures. Key features include:

• A geospatial database using PostgreSQL/PostGIS for efficient closure storage and queries.
• A RESTful API using FastAPI, with outputs in OpenLR format for location referencing.
• A web-based UI for users to submit and view closures on a live map.
• A prototype integration with OsmAnd, showcasing how routing can dynamically adapt to avoid closed roads.

The goal is to have a fully working, open-source prototype by the end of the summer that enables OSM apps to respond to temporary disruptions, making navigation more reliable for everyone.

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Weekly Progress Report

Coming Soon….

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Contact Me

Feel free to reach out — I’d love to connect!

• 📍 Location: Chicago, IL, USA
• 📧 Email: architrathod77@gmail.com
• 🌐 Portfolio: archit-rathod.vercel.app
• 💼 LinkedIn: linkedin.com/in/archit-rathod
• 💻 GitHub: github.com/Archit1706

Interessantes Projekt

neu hier

Grüße gehen raus 😊😊

While editing the next edition of WeeklyOSM, I stumbled upon a fascinating case study that caught my full attention.

A certain team, responding to a certain request, set out to display a mobile device’s geolocation on a map—completely offline, without any network access.

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Their initial approach? Crawling OpenStreetMap tile images one by one and storing them locally.

It didn’t take long before they hit a wall: the data size exploded, and keeping the tiles up-to-date turned into a maintenance nightmare. Sensibly, they scrapped that plan.

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Next, they evaluated two open-source tools: tileserver-gl (JavaScript) and mbtileserver (Go).

In the end, they opted for mbtileserver, citing Go’s “security” over JavaScript. I still don’t fully grasp that reasoning (somehow, it involves a decision between verifying their own source code and verifying the entire JavaScript interpreter), and I even asked them in the comments section. But for now, let’s accept that as a given and move on.

After choosing mbtileserver, they needed MBTiles files to serve. Eventually, they discovered tilemaker, a tool that converts .osm.pbf files into .mbtiles.

They successfully tested it on a small area. Encouraged, they moved on to larger datasets. Then came the pain.

“…half an hour passes, and we experience a computer freeze as all the RAM runs out.”

Their machine couldn’t handle the memory load. So they requested a beefy VM—256 GB of RAM—and tried again. Still no luck.

That’s when they discovered tilemaker’s --store option, which dumps intermediate stages to disk instead of holding everything in RAM. That tweak made it work.

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Creating an offline, custom OSM map has been my white whale for years. So I decided to replicate their setup on my own desktop.

I began with installing mbtileserver. That’s when I hit this cryptic error:

cc1.exe: sorry, unimplemented: 64-bit mode not compiled in

… See full entry

Quick Overview/Summary

It’s been a year since my last diary entry on this, and I haven’t done too much (I don’t think) in that timeframe. The GIF below should give a good idea of the progress made. Unfortunately, a couple of the changes made in the bottom left corner haven’t been rendered yet.

What’s changed?

I’m still pushing through and adding buildings, or adjusting existing ones. There does seem to be someone else working here every now and then, as I had some of my changes deleted/modified (although I’m not sure of the reason, as the changeset description is not great).

More recently, I have been trying to add in more landuse=* as there is next to none currently. This is still a challenge, though, as so much has changed in 7 years that you’d need an on-the-ground survey or a local to confirm if certain buildings are shops or not.

Plan Going Forward

… See full entry

I have a craze for adding addresses to OSM. Unfortunately, in Delhi it is ridiculously hard to find a place with addresses properly displayed on the front. If you come across a house with no nameplate on it, you can be almost sure to not guess the correct house number.

This irks me a lot. So, I have decided to look for guide maps made by the locals while travelling around the city, and use those to map the neighbourhoods. I have got some nice pictures, which I have uploaded to my commons profile.

Here’s one I recently clicked. The amount of detail really supplements my survey a lot.

This diary entry is licensed under CC BY-NC-SA 4.0.

品牌內容細節有錯誤或修正需求， 在name suggestion index的Github修改， 可直接修改儲存為Fork分支，提issue後待審核即會更正。

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Die letzten vier Blog-Einträge werden automatisiert angezeigt. Weshalb auch immer das sein muss …

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⚠🚧 Work in Progress 🚧

🏗 Last Updated: 28 May 2025

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⚠🚧 Çalışma Devam Ediyor 🚧

🏗 Son Güncelleme: 28 Mayıs 2025

… See full entry

Following mobilization of volunteers and OSm newbies at Benue State University to kick-start a new chapter and team of Unique Mappers to drive Map Nigeria Mapathon project and the Makurdi on going project .We had a training for newbies. More than 20 newbies has been mobilized and signed up to OSM. These include William Hundu, the Team Coordinator, Lucas, Glory,Shater ,Jacob an others After the virtual meeting ,I hope to travel to Makurdi for in-person training and MOU with the University and Unique Mappers Network,Nigeria

Also .we are planning for stakeholders workshop for data use cases

So much data can be added, it’s very cool

I want to try to add a lot of QLD Translink services.

Bonjour à tous,

Avec des utilisateurs marocains nous avons constaté que la frontières entre le Maroc et le Sarah Occidentale était encore présente.

Je ne la vois pas sur la carte ci-dessous.

Mais elle présente sur la version en ligne intégré dans notre logiciel.

目前编辑范围：甘肃省白银市白银区、兰州市；浙江省杭州市、嘉兴市

2025年05月22日

编辑范围：白银市白银区、兰州市 添加道路名称、添加道路信息，添加文化遗址、自然要素内容和一些建筑物。未来有时间可能会修改村庄范围、建筑物边界等。

Hello fellow mappers.

My name is Ayame Otsuki, and I am honored to be nominated as a 2025 voting member of the Humanitarian OpenStreetMap Team (HOT).

I’m based in Japan, and I’ve been engaging in mapping activities as a member of NPO Crisis Mappers Japan since 2015, and I set up a youth team within this community.This February, I gave a presentation about “20years Journey of OpenStreetMap” at State of the Map Japan. Sorry for it’s Japanese

I currently work as a data scientist and analyst at a Japanese telecom company.

What does HOT mean to me?

To me, HOT is a community of people who believe in the power of open data and try to provide humanitarian support across borders. HOT is the one that taught me that a single computer can help some people all over the world.

How did I become involved in HOT?

I first became involved with HOT when I participated in a crisis mapping activity for the 2015 Nepal earthquake, which was organized by Professor Taichi Furuhashi at university. I got to engage in mapping activities since then, and developed an efficient tool (BCr.map) for drawing buildings (rectangles) as my university graduation research project in 2019.

Why do I want to be a voting member?

I would like to be more actively involved in HOT community by becoming a voting member. And also, I want to serve a statistical and objective perspective in HOT’s strategy and governance as a data analysis expert.

My involvement in HOT, mapping, and/or humanitarian response:

I’ve been engaging in mapping activities by using HOT’s tool for 10 years and expand the Crisis Mappers Japan community. I’m also a drone pilot of a Japanese disaster drone rescue team and taught how to operate a drone to local kids.

My most important responsibility as a voting member:

… See full entry

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