Many years ago, I stayed in a self-catering flat in Porthmadog, north Wales. It was described as having allocated parking. On arrival it was evident that the "allocated" parking was part of the car park for the Ffestiniog Mountain Railway.
So I though well, how is that going to work out? No cones to mark it, just small notices on the adjacent wall. Anyhoo, yes it did work, after days out and returning to the flat, there was "my" space unoccupied.
I did use the train as often as possible, but was pleasantly surprised at people's respect for other people's parking.