The O-Bahn Busway
is a guided busway
that is part of the bus rapid transit
system servicing the northeastern suburbs of Adelaide
, South Australia
. The O-Bahn system was conceived by Daimler-Benz
to enable buses to avoid traffic congestion by sharing tram
tunnels in the German city of Essen
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 can travel at a maximum speed of 100 km/h (60 mph), but are now restricted to 85 km/h (53 mph). 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.
An additional section including a 670-metre tunnel opened in 2017 at the city end to reduce the number of congested intersections buses must traverse to enter the Adelaide city centre.
The development of the O-Bahn busway led to the development of the Torrens Linear Park from a run-down urban drain into an attractive public open space. It has also triggered urban development around the north-eastern terminus at Modbury.
The Honourable Dr John Jefferson Bray, AC QC (16 September 1912 – 26 June 1995) was an Australian lawyer, academic and published poet, and from 1967-1978 served as Chief Justice of the Supreme Court of South Australia. He was born in Adelaide, the elder son of Harry Midwinter Bray (1879–1965), an Adelaide stockbroker, and his wife, Gertrude Eleanore Stow (members of whose family were Congregationalist missionaries in South Australia).
Bray's father's family had a history of involvement in South Australian politics and current affairs: Bray's grandfather was the Honourable Sir John Cox Bray, a former Premier of South Australia. On his mother's side, Bray claimed a collateral relationship to the third U.S. president, Thomas Jefferson. Bray was educated at Sevenhill, a state school in the Clare Valley; St Peter's College, Adelaide; and at the University of Adelaide, where he earned a BA in 1932, an LL.B.(Hons.) in 1933 and an LL.D. in 1937.
Bray trained as a lawyer and was admitted to the South Australian Bar in 1933. He was acting lecturer in jurisprudence at the University of Adelaide for the years 1941, 1943, 1945 and 1951. He was created a Q.C. in 1957. He served as a lecturer in Legal History at the University of Adelaide from 1957-1958, and then as a lecturer in Roman Law from 1959 until 1966. He was appointed Chief Justice of the Supreme Court of South Australia on 28 February 1967 and served until his retirement from the judiciary on 28 November 1978. He was appointed Chancellor of the University of Adelaide in 1968, and also served as Deputy to the Lieutenant-Governor of South Australia from 1968 until retirement.
Bray was made a Companion of the Order of Australia in 1979, and was granted an Honorary Doctorate by the University of Adelaide in 1983. He is said, by his brother, to have refused a knighthood. He described his views as "æsthetic - traditional; social - emancipated; political - fluctuating" and his philosophies as "sceptical, some tendencies to Platonism".