The thing is that using the default station coverage of 2x2, stations are 4 tiles away from each other.
Aproximate numbers that I just observed:
A empty RVg T110 (January 2009) with his acceleration reaches 84kmph before decelerating
A empty RVg T108 ( March 1982) reaches 74
A empty RVg T107 (March 1970) reaches 60
A empty Due WAG GT6 (March 1951) reaches 69
So, until RVg T108 appears (1982) 70kmph rails are worth and enough, after that, 90kmph ones are needed to take some extra profit from the speed. Might be non significan since we can assume trams use to be 90% full and might not reach those speeds.
I'm talking about urban trams, longer distance trips on tram will benefit from faster tracks.
That's why I don't want 90 kmph ones to be more expensive in maintenance that are now (an extra 66% maintenance cost that I feel as too high, since you only gain about 30% extra speed, doesn't feel balanced), but maybe Arkadiusz is right, I'll test when I get the pak nightly.
Anyway this change can have the consequence of the player needing to use different tracks on different sections of the network. While I personally like this, might make harder to players to make profits from trams, and make playability worse.
But that's just my oppinion.
