City Ring Route, Adelaide

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City Ring Route
South Australia
General information
Type Road
Length 15.6 km (9.7 mi)
Route number(s) R1
route number
  • National Highway A1
    • (Fullarton Road-Robe Terrace)
  • A21 before 2016
Ring road around
Major junctions
From Main North Road, Medindie, Adelaide
To Main North Road, Medindie, Adelaide
Major suburbs

Adelaide has two city ring routes, that loop around the Adelaide city centre and North Adelaide, known as the Inner and Outer Ring Routes.[1]

Inner ring route

The Inner Ring Route is a collection of major roads signposted as state route R1[2] (was A21 before 2017). Listed clockwise from Main North Road, the inner route (and the major roads they intersect) consists of:[3][4]

Outer ring route

The Outer Ring Route is not signposted. It also consists of major roads surrounding the city. They are:[1]

See also

Australia road sign W5-29.svg Australian Roads portal


  1. ^ a b Department of Planning, Transport, and Infrastructure (24 August 2004). "Adelaide's Inner and Outer Ring Routes". Government of South Australia. Archived from the original on 6 March 2014. Retrieved 22 December 2013. 
  2. ^ "Road Route Numbers (Trail Blazer)". Data SA. Government of South Australia. 8 November 2016. Retrieved 16 October 2017. 
  3. ^ Department of Planning, Transport, and Infrastructure (13 August 2004). "Adelaide's Inner & Outer Ring Routes Map". Government of South Australia. Retrieved 22 December 2013. 
  4. ^ Google (11 December 2016). "Adelaide city and inner ring route" (Map). Google Maps. Google. Retrieved 11 December 2016. 

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