Claude Code helped finish a Germany public transport map
A public transport for Germany now shows where someone can travel within 30 minutes from their current location. The project began as a personal tool for choosing where to live in Munich, because there was no easy online way to compare places between two specific transit stops. The work was too large for spare-time coding and was paused.
It was later restarted with ChatGPT, but progress slowed because took too much time. Rebuilding it with Claude Code led to a usable map with a cleaner experience and extra , including public transport quality maps and “traffic desert maps” that show areas with weak public transport service. The tool works in German and English.
It only applies inside Germany, and its data is updated once a month from gtfs.de.
Key points
- The map shows places reachable by public transport within 30 minutes in Germany.
- The idea started from a real moving decision in Munich.
- ChatGPT helped restart the project, but slowed progress.
- Claude Code helped turn it into a usable map with more .
- The data comes from gtfs.de and is refreshed monthly.