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 https://www.youtube.com/watch?v=HDz8Me64wSM&t=2s
Adelaide’s O-Bahn was introduced in 1986 to service the city’s rapidly expanding north-eastern suburbs, replacing an earlier plan for a tramway extension. The O-Bahn busway provides specially built track, combining elements of both bus and rail systems. Adelaide’s track is 12 kilometres (7.5 mi) long and includes three interchanges: Klemzig, Paradise and Tea Tree Plaza Interchange in Modbury. Interchanges allow buses to enter and exit the busway and to continue on suburban routes, avoiding the need for passengers to transfer to another bus to continue their journey. Buses travel at a maximum speed of 100 km/h (60 mph), and the busway is capable of carrying 18,000 passengers an hour from Adelaide city centre to Tea Tree Plaza in 15 minutes. As of 2015, the busway carries approximately 31,000 people per weekday. ~Wikipedia
Another Crazy German Invention: Upside down Monorail