Tea Tree Plaza Interchange (previously known as Modbury Interchange) is an interchange belonging to Adelaide Metro. It is the terminating station of the O-Bahn Busway, and is a central public transport hub for the north eastern suburbs of Adelaide, South Australia. Stage 2 of the O-Bahn Busway (Paradise Interchange to Tea Tree Plaza) was given the go ahead in 1986, and opened on 20 August 1989.