How should bus lines be mapped?
In 2011, this scheme was approved and according to the proposal page it is active. I took the time to learn it and I tried it out, but as far as I can tell, it is not supported well.
Apparently the wiki proposal page has not been cleaned up and not all of the information on it has been put on the page about public transport. I find this situation to be confusing.
If you know more about how to tag public transport or want to share thoughts, please contact me on my wiki talk page.