Adelaide has two city ring routes, that loop around the Adelaide city centre and

North Adelaide North Adelaide is a predominantly residential precinct and suburb of the City of Adelaide in South Australia, situated north of the River Torrens and within the Adelaide Park Lands. History Surveyor-General Colonel William Light of the colo ...

, known as the Inner and Outer Ring Routes.

Inner ring route

The Inner Ring Route is a collection of major roads signposted as state route R1 (was A21 before 2017). Listed clockwise from

Main North Road Main North Road is the major north-south arterial route through the suburbs north of the Adelaide City Centre in the city of Adelaide, South Australia. It continues north through the settled areas of South Australia and is a total of long, fro ...

, the inner route consists of: * Robe Terrace * Park Road /Mann Road * Hackney Road * Dequetteville Terrace *

Britannia Roundabout The Britannia Roundabout is a roundabout intersection on the eastern side of the City Ring Route near the city centre of Adelaide. Before it was upgraded in 2014, many minor accidents had occurred over the years at this former traffic black spot ...

* Fullarton Road *

Greenhill Road Greenhill Road is a major road in Adelaide, South Australia, that provides a connection to the eastern and hills suburbs. Its western section, running along the south side of Adelaide Parklands, forms part of Adelaide's City Ring Route. Route ...

* Richmond Road *

South Road South Road and its southern section as Main South Road outside of Adelaide is a major north–south conduit connecting Adelaide and the Fleurieu Peninsula, in South Australia. It is one of Adelaide's most important arterial and bypass roads. As ...

James Congdon Drive Adelaide has two city ring routes, that loop around the Adelaide city centre and North Adelaide, known as the Inner and Outer Ring Routes. Inner ring route The Inner Ring Route is a collection of major roads signposted as state route R1 (was A2 ...

* Port Road * Park Terrace * Fitzroy Terrace The Inner Ring Route is adjacent to the outer edge of the Adelaide Park Lands except on the western side between

Anzac Highway Anzac Highway is an main arterial road heading southwest from the city of Adelaide, the capital of South Australia, to the beachside suburb of Glenelg. Originally named the Bay Road (which remains an informal synonym), it mostly follows the t ...

and Port Road where railway lines occupy the space along the parklands, and the road ring route is further out. The earlier A21 route using West Terrace passed inside the ring of parklands instead.

History

Prior to the renumbering as route R1 in 2017, the western side of the previous route A21 was different from the current route. It followed moore of Port Road southeast,

West Terrace West Terrace is a populated place in the parish of Saint James, Barbados. The National Cultural Foundation of Barbados is located in West Terrace. See also * List of cities, towns and villages in Barbados This is a list of cities, towns and ...

and Goodwood Road. Route R1 uses

, a short section of

and Richmond Road instead. The Park Terrace section had a level crossing of the Outer Harbor railway line until 2017. The crossing was replaced by a bridge when the railway was lowered as part of a project to separate the Torrens Junction so that suburban trains to Outer Harbor did not conflict with interstate trains on the standard gauge line. The Park Terrace bridge over the Gawler railway line and interstate freight line was constructed in 1990. When it was built, it replaced an awkward 30-degree level crossing. In 2017, it was named after the engineer who supervised its construction,

David Fitzsimons David Fitzsimons (23 April 1950 – 7 September 2008) was a former Australian Olympic athlete who competed in middle distance events and civil engineer. A member of the Adelaide University Athletics Club, he represented Australia at two Oly ...

Route description

Outer ring route

The Outer Ring Route is not signposted. It also consists of major roads surrounding the city. They are: *

Grand Junction Road Grand Junction Road is the longest east–west thoroughfare in the Adelaide metropolitan area, traversing through Adelaide's northern suburbs approximately 8 kilometres north of the Adelaide city centre. Route Travelling from the Port Adelaide ...

* Hampstead Road/Portrush Road * Cross Road *

References

{{Road infrastructure in Adelaide Roads in Adelaide Ring roads in Australia