# City Ring Route

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 A21 before 2017). Listed clockwise from Main North Road, the inner route consists of:
* Robe Terrace
* Park Road (southbound)/Mann Road (northbound)
* Hackney Road
* Dequetteville Terrace
* Britannia Roundabout
* Fullarton Road
* Greenhill Road
* Richmond Road
* South Road
* James Congdon Drive
* 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 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 and Goodwood Road. Route R1 uses James Congdon Drive, a short section of South Road 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.

### Route description

| LGA | Location | km | mi | Destinations | Notes |
| Adelaide–Prospect–Walkerville tripoint | North Adelaide–Thorngate–Medindie tripoint | 0.0 | 0.0 | Main North Road (A1 north, unallocated south) – Gepps Cross, Port Wakefield, Gawler | Northernmost point of Ring Road and route R1 Name change: Fitzroy Terrace (west), Robe Terrace (east) |
| Adelaide–Walkerville boundary | North Adelaide–Medindie–Gilberton tripoint | 1.2 | 0.75 | Northcote Terrace (A10 north) – Houghton, Birdwood, Angaston Walkerville Terrace (northeast) – Walkerville | Name change: Robe Terrace (west), Mann Road (n/bound)/Park Road (n/bound) (south) |
| Adelaide–Walkerville boundary | North Adelaide–Medindie–Gilberton tripoint | 1.5 | 0.93 | Melbourne Street – North Adelaide | No right turn into Park Road southbound |
| Adelaide–Walkerville boundary | North Adelaide–Medindie–Gilberton tripoint | 1.7 | 1.1 | O-Bahn Busway | Buses only |
| Adelaide–Walkerville boundary | North Adelaide–Medindie–Gilberton tripoint | 2.0 | 1.2 | Bundeys Road – North Adelaide | Name change: Mann Road (n/bound)/Park Road (n/bound) (north), Hackney Road (south) |
| River Torrens | River Torrens | 2.2 | 1.4 | Hackney Bridge | Hackney Bridge |
| Adelaide–Norwood Payneham & St Peters boundary | Adelaide–Hackney–Kent Town tripoint | 3.3 | 2.1 | North Terrace (A11 east) – Campbelltown, Hope Valley, Houghton Botanic Road (west) – Adelaide CBD | Name change: Hackney Road (north), Dequetteville Terrace (south) |
| Adelaide–Norwood Payneham & St Peters–Burnside tripoint | Adelaide–Kent Town–Rose Park | 4.6 | 2.9 | Fullarton Road (north) – Norwood Wakefield Road (west) – Adelaide CBD Kensington Road (east) – Wattle Park | Britannia Roundabout Name change: Dequetteville Terrace (northwest), Fullarton Road (south) |
| Adelaide–Burnside boundary | Adelaide–Dulwich–Glenside–Eastwood quadripoint | 5.9 | 3.7 | Greenhill Road (B26 east) – Burnside, Uraidla, Balhannah Fullarton Road (A1 south) – Glen Osmond, Fullarton, Belair | Name change: Fullarton Road (north), Greenhill Road (west) |
| Adelaide–Unley–Burnside tripoint | Adelaide–Parkside–Eastwood tripoint | 2.9 | 1.8 | Glen Osmond Road – Adelaide CBD, Glen Osmond | |
| Adelaide–Unley boundary | Adelaide–Parkside boundary | 2.7 | 1.7 | Hutt Road (north) – Adelaide CBD George Street (south) – Parkside | |
| Adelaide–Unley boundary | Adelaide–Unley–Parkside tripoint | 2.1 | 1.3 | Unley Road (B29 south, unallocated north) – Adelaide CBD, Belair | |
| Adelaide–Unley boundary | Adelaide–Unley boundary | 8.1 | 5.0 | Peacock Road (north) – Adelaide CBD King William Road (south) – Unley Park | |
| Adelaide–Unley boundary | Adelaide–Wayville–Unley tripoint | 8.2 | 5.1 | Glenelg tram line | Glenelg tram line |
| Adelaide–Unley boundary | Adelaide–Wayville boundary | 8.7 | 5.4 | Sir Lewis Cohen Avenue – Adelaide CBD | |
| Adelaide–Unley boundary | Adelaide–Wayville boundary | 9.2 | 5.7 | Goodwood Road – Adelaide CBD, Hindmarsh | |
| Adelaide–Unley–West Torrens tripoint | Adelaide–Wayville–Keswick–Keswick Terminal quadripoint | 9.7 | 6.0 | Belair, Seaford and Adelaide–Melbourne SG railway lines | Belair, Seaford and Adelaide–Melbourne SG railway lines |
| Adelaide–Unley–West Torrens tripoint | Adelaide–Wayville–Keswick–Keswick Terminal quadripoint | 9.7 | 6.0 | Anzac Highway (A5 southwest, unallocated northeast) – Adelaide CBD, Glenelg | Name change: Greenhill Road (east), Richmond Road (west) |
| West Torrens | Keswick–Marleston–Richmond–Mile End South quadripoint | 10.8 | 6.7 | South Road (A2 south) – Edwardstown, Darlington, Old Noarlunga | Concurrency with route A2 |
| West Torrens | Richmond–Mile End South boundary | 11.3 | 7.0 | South Road (A2 north) – Wingfield, Hindmarsh, Gawler | Concurrency with route A2 |
| West Torrens | Mile End South–Keswick Terminal–Mile End tripoint | 12.1 | 7.5 | Sir Donald Bradman Drive (A6 west, unallocated east) – Adelaide CBD, Adelaide Airport, West Beach | |
| Adelaide–West Torrens boundary | Adelaide–Mile End boundary | 13.1 | 8.1 | Henley Beach Road (west) – Mile End, Fulham, Henley Beach | Half-diamond interchange, no access eastbound |
| Adelaide–West Torrens boundary | Adelaide–Thebarton boundary | 13.6 | 8.5 | Port Road (southeast) – Adelaide CBD | Name change: James Congdon Drive (south), Port Road (north) |
| River Torrens | River Torrens | 14.7 | 9.1 | Hackney Bridge | Hackney Bridge |
| Adelaide–Charles Sturt boundary | North Adelaide–Hindmarsh boundary | 14.8 | 9.2 | Port Road (A7 northwest) – Woodville, Port Adelaide | Name change: Port Road (south), Park Terrace (northeast) |
| Adelaide–Charles Sturt boundary | North Adelaide–Hindmarsh–Bowden tripoint | 14.9 | 9.3 | Outer Harbor and Grange railway lines | Outer Harbor and Grange railway lines |
| Adelaide–Charles Sturt boundary | North Adelaide–Bowden–Ovingham tripoint | 15.5 | 9.6 | Gawler and Adelaide–Port Augusta SG railway lines | Gawler and Adelaide–Port Augusta SG railway lines |
| Adelaide–Charles Sturt–Prospect tripoint | North Adelaide–Ovingham–Fitzroy tripoint | 16.3 | 10.1 | Torrens Road (A22) – Rosewater, Kilburn | Name change: Park Terrace (southwest), Fitzroy Terrace (east) |
| Adelaide–Prospect boundary | North Adelaide–Fitzroy–Thorngate tripoint | 16.8 | 10.4 | Prospect Road – Prospect, Gepps Cross | |
| Adelaide–Prospect–Walkerville boundary | North Adelaide–Thorngate–Medindie tripoint | 17.1 | 10.6 | Main North Road (A1 north, unallocated south) – Gepps Cross, Port Wakefield, Gawler | Northernmost point of Ring Road and route R1 Name change: Fitzroy Terrace (west), Robe Terrace (east) |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus Incomplete access Route transition ||||||

## Outer ring route

The Outer Ring Route is not signposted. It also consists of major roads surrounding the city. They are:
* Grand Junction Road
* Hampstead Road/Portrush Road
* Cross Road
* South Road