I recently (2022/10/10) sent an email to a public transport company but still not reply… :confused:

They publish a GTFS file on their website (which I suppose is what GMaps uses), but there’s no license in sight. I’ve seen wiki pages mentioning the use of this GTFS, but no mention of the legal part, hence why I’m sending an email myself.

All this to say: your approach sounds reasonable to me. In my email I asked explicitly about the license, and stated that this license, to be used for OSM, must be compatible with the ODbL. Maybe I just scared away whoever got the mail…