See https://wiki.openstreetmap.org/wiki/Public_transport and its referenced articles.

However, note that London had a particularly active public transport mapper, who was/is particularly hot on following the latest conventions.

Also, more generally, the UK has a lot of railway history and transport enthusiasts, so you will often find extreme levels of detail in the UK.

A full list is impossible with an open tagging scheme, like that in OSM.

Having said the above, I don’t recognise the above values, and stopping locations are generally points on the actual line, rather than the station as a whole, so specific examples may help.