Other Polish cities
Please also take a look at project PRZYJAZDY.PL (website in Polish), which covers even more cities then I do. All of mine feeds are also listed there!
Also, 4 Polish agencies makes their GTFS feeds public:
ZTM Gdańsk - notes
The ZTM Gdańsk feed is updated everyday around 07:45 Warsaw time, but should contain schedules for at least 7 days ahead.
For info on how to obtain realtime info, see this document.
ZTM requires to give credit to them by showing
feed_publisher_name, feed_publisher_url, feed_version columns from the feed_info file.
Even tough all feeds, as long as listed here, should be up-to-date, I need to leave the below statement if in any unexpected event I won’t be able to maintain the feed.
The feeds are provided “as is”, without warranty of any kind, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose and noninfrigement. In no event shall the author be liable for any claim, damages or other liability, whether in action of contract, tort or otherwise, arising from, out of or in connection with the feeds or the use or other dealings in the feeds.