Your American light rails already are rather heavy compared to rest of the world. What about the other way around, what's the lightest light rail that is still a functional system and not a meme downtown circulator?
Anyway, San Diego's trains used to look proper trains.
>>1462369Doesn't that have pretty steep curves (like 10m radius steep) in the tunnel sections - the reason why it wasn't converted in the first place.
>>1462428In Essen the metre gauge tram shares a tunnel with the standard gauge stadtbahn.