OK, I am sending you a message with what went wrong.

Hello, you have broken tens of bus relation with this motorway edit. Next time please think twice before such edits, thank you

Hi, my fault, I forgot. Will do better next days :)
I did some investigation during summer. Recent GTFS data are actually available, I am thinking how to translate them into OSM relations...

Jde to, chytit prvek v seznamu a přesunout na správné místo. Mnohem lépe to jde v JOSM. každopádně všechny bus stop a platform mají být ve správném pořadí na začátku relace, pak teprve jsou lineární prvky - segmenty.

Díky za aktualizace autobusů MHD. Dej prosím pozor na relace, aby byly zastávky i segmenty ve správném pořadí. Linku 365 už jem opravil.

perfect, thank you

Please double-check your edit. By the current map restrictions traffic from Austria to CZ is not permitted. Is that correct?

Relace autobusových linek jsem teď opravil, pří příštích podobných editacích prosím pozor na relace!

To je možné, tou dobou nebyl přesnější podklad, prosím oprav podle skutečnosti, máš-li novější zdroje, díky

Ahoj, mapováno podle RUIAN, něco nesedí?

Díky za opravu, příště prosím pozor na sekvenci cest v relaci, cesty musí jít postupně za sebou. Obě linky jsem pro tentokrát opravil

Segmenty v relaci musí navazovat. Tram 7 jsem opravil, na další se snad dostanu v příštích dnech. Příště prosím editujte opatrněji, díky

Thanks for letting me know, I forgot. From today on, I will add the note to every "unverified" Flixbus relation, with a slightly shorter version (256 characters max): Start, end, and stop locations have not been verified. This route may be out of service long-term and may not match the actual route (2026)

no problem. For such edits, for instance inserting a bridge to an existing highway, use the SPLIT tool in JOSM:
1. Add nodes at the exact start and end points of the future bridge on the highway way (use the Add Node tool or double-click with the Select tool).
2. Split the way twice:
Select the highway way.
Use the Split Way tool (shortcut P) on the two new nodes.
→ JOSM will automatically replace the old way in all relations (including the bus route) with the appropriate new segment(s). It usually preserves order correctly.

3. Select the middle (bridge) segment and add the tags:
bridge=yes
layer=1 (or higher if needed)
Other relevant tags (e.g. bridge:name=*, maxweight=*, etc.)

Check the relation:
Open the Relations panel (button on the left).
Select the bus relation and verify the members.
The original way should now be replaced by the three segments (before + bridge + after), all still in the relation.

Hello, thank you for adding details to openstreetmap! With this edit you broke 54 bus relations. I am fixing them for now. please pay more attention to relations during your edits.

fixed

Bus lines rerouted

Hello, thank you for map improvements. Next time please make sure you dont break bus relations that runs through the area. I am fixing it for now.

I am fixing it for now. Next time please make sure you dont break bus line relations that runs through the edited intersections, thank you

Thanks for the feedback and for checking the routes around Geneva. Improvements are always welcome.
1. Yes, by “most logical” I mean the route that makes the most sense on OSM (main roads, sensible turns, etc.). There are occasional ways to see the actual Flixbus route via their tracker, but I don’t systematically cross-check existing relations with it. When I notice a gap in a relation, in 99 % of cases it’s obvious how to fix it. The remaining 1 % I handle case by case.
2. When you select a city on a Flixbus line and are lucky enough that a bus is currently running, you can track it here: https://www.flixbus.de/track. Again, this is all manual work — no automation.
3. You’re right, the data shown on the tracker isn’t perfect. Unfortunately I’m not aware of a better public source. In the end, local knowledge remains the best reference.
4. Yes, that’s possible.
5. Yes, also possible. When I have time I plan to focus a bit on Bratislava as well.
6. A standard note/disclaimer sounds like a good idea. I wouldn’t do a bulk update of all Flixbus relations right now (there are hundreds of them, and many other bus networks in OSM have similar data quality issues), but I’m happy to add it when I edit individual relations. Feel free to draft a proposed wording and we can refine it together.
7. As you know, the Czech Republic is my home country, so most of my local knowledge naturally goes into improving local bus connections.