@kitten@luna it's a name sometimes used for systems where citys don't have a separated Straßenbahn and U-Bahn, but instead it's more like a Straßenbahn which sometimes drives on street track, sometimes has separate track on street level with crossroads and traffic lights and everything, sometimes has elevated or underground track, usually with it's own signaling system, and sometimes even goes on real railway track with railway signaling and everything...
@luna@lunar.place
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