A Train or Bus? Bus Rail-Guided Transit: Adelaide, Australia (O-bahn) (Поезд или Автобус)?

Have you ever seen anything like this? These buses have dedicated guide ways allowing the buses to reach 100 kphw while prohibiting cars from doing the same (as the buses have additional side wheels to keep the bus in between the tracks). Please note that Adelaide indeed has one tram line. The video for this can be found here - Adelaide’s O-Bahn was introduced in 1986 to service the city’s rapidly expanding north-eastern suburbs, replacing an earlier plan f