>>1794910>>1794898>TramLimited grade separation
Fairly small vehicles
Operates on short distances
Very small "stations" and partially just stops in the street to let people in and out
Stops are often just a few hundred meters apart
>Light RailLarger vehicles
Larger distances covered between stop
Due to his higher speeds
Connects areas which tend to be further apart
Has mostly proper stations
Often serves as a hybrid between a tram and a proper metro, at least in medium sized cities (200k to 1,000k people) here in Germany, where a proper metro system would be hard to justify.
>MetroComplete grade separation
Serves far longer distances
Far larger vehicles and longer trains
Dedicated stations and not just stops
Often operates for a significant chunk of it's routes underground
Often operates due to the complete grade separation on a third rail instead of overhead wires
>when does somthing stop being light rail and become a metro?Once it has complete grade separation I would say.