I noticed that riding the tram from Astrape to Santorini does not give time reduction per loop like the other loop actions do.
Edit: and that includes other actions at the top of and on the way to the plateau.
The tram not giving familiarity is deliberate, as it runs on rails so there's no way that you being familiar with riding it would increase its speed. To make this more immediately obvious, in v0.4 it's been replaced with an event. You perform a very short action to start the tram, then there's a timed event during which you're free to perform other actions within the tram (but no longer have access to actions at your point of departure).