Egor Kotov 🌐🏃‍♂️🚊🚋🚙

#rstats osrm.backend 0.2 is out.

I fixed a bug that might have caused lockup if you tried to calculate too large origin-destination matrices. Should work just fine now! (though there is a limit of course, as it works over REST API, but parallel requests are your friend).

osrm.backend::osrm_start("data_folder")

- router is installed automagically on all OS
- graph prep control from R

📘 Quick Start: https://www.ekotov.pro/osrm.backend/articles/osrm-backend.html
🗂️ Repo: https://github.com/e-kotov/osrm.backend
#OSRM #routing #gischat

Many of you already heard about this new algo that's faster than Dijkstra ( https://arxiv.org/abs/2504.17033 ), here I collected 3 software implementations: 1. #python https://github.com/sidharthpunathil/fastest-shortest-path-algo-poc 2. #rust https://github.com/alphastrata/fast_sssp 3. #rust + some explanations of the paper https://medium.com/%40adnanmasood/breaking-the-sorting-barrier-why-a-new-shortest-path-algorithm-matters-even-if-you-still-love-7bad07c71b88

#r5rgui v0.2 for interactively exploring and debugging your r5/r5r networks is here with great new features:
- Compare two routes using different modes of transport
- Compare two (or more!) networks! In this example I am comparing OpenStreetMap network vs official Swedish street network data from Trafikverket.se
- See the speed of processing routing queries
- Use custom basemaps (via `mapgl` package)

And all of this still in one line of code!

https://www.ekotov.pro/r5rgui/

#rstats #gischat

I tried the @mapswipe@floss.social app for crowdsourced mapping, and it is a beautifully designed piece of software. The app features great interactive quick-start instructions, lowering the entry barriers for a wide audience to contribute to humanitarian mapping efforts! https://mapswipe.org/

RE: @EgorKotov@datasci.social

Interested to learn how I converted Swedish street network from Trafikverket.se to R5R compatible format (that is, osm.pbf)? See my other draft R package nvdb2osmr https://github.com/e-kotov/nvdb2osmr based on nvdb2osm Python scripts https://github.com/NKAmapper/nvdb2osm .