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 307 kilometres (191 mi) long, from North Adelaide to 21 kilometres (13 mi) out of Port Augusta. It follows the route established in the early years of the colony by explorer John Horrocks and was a major route for farmers and graziers to reach the capital, passing through rich farmland and the Clare Valley wine region. In 2011, the section of road between Gawler to Wilmington was renamed Horrocks Highway.
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.
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 South Road, it is designated part of route A2 within suburban Adelaide, and as Main South Road, it is designated part of routes A13 and B23.
Portrush Road is a major arterial route through the eastern suburbs of Adelaide, the capital of South Australia. This name covers many consecutive streets and is not widely known to most drivers except for the southernmost section, as the entire allocation is still best known as by the names of its constituent parts: Hampstead Road, Taunton Road, Ascot Avenue, Lower Portrush Road, and Portrush Road proper. This article will deal with the entire length of the corridor for sake of completion, as well to avoid confusion between declarations. Portrush Road is designated route A17.
Goodwood Road is a major north–south arterial road, approximately 10 kilometres long, in Adelaide, South Australia. It runs between the Adelaide city centre and Adelaide's southern suburbs of Pasadena and Panorama
Cross Road is a major arterial road that travels east–west through the inner southern suburbs of the Australian city of Adelaide. It is designated route A3.
Daws Road is a major arterial road in the central southern suburbs of Adelaide, running east–west between Marion Road in the west and Goodwood Road in the east.
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.
Port Road is a major road in Adelaide, South Australia connecting the Adelaide city centre with Port Adelaide. It is 12 km (7.5 mi) long, and is designated part of route R1 within central Adelaide, and beyond as route A7.
Torrens Road is an arterial road in the northwestern suburbs of Adelaide, Australia. The road is aligned southeast to northwest and is parallel with Port Road for most of its length.
Sir Donald Bradman Drive is a major arterial road that travels east–west through the western suburbs of Adelaide, South Australia. It is the main route from the Adelaide city centre to the Adelaide Airport.
Victoria Road is a major road in Adelaide, South Australia, connecting Port Adelaide to Outer Harbor on the LeFevre Peninsula. It is designated part of route A16.
Lower North East Road is an arterial road in the northeastern suburbs of Adelaide, South Australia. It links the north-eastern corner of Adelaide to Houghton in the Adelaide Hills, and is an urban alternative to North East Road.
The North–South Motorway is a partially complete motorway traversing the inner western suburbs of Adelaide from Waterloo Corner in the north to Bedford Park in the south. Progressively constructed in stages since 2010, once complete it will replace the adjacent South Road as Adelaide's main north–south roadway and form the central section of the North–South Corridor, being flanked north and south by the Northern Expressway and Southern Expressway, respectively. It is designated part of route M2.
Currie Street is a main street in the Adelaide city centre, South Australia. It runs east–to–west from King William Street, through Light Square, to West Terrace on the western edge of the city centre.
Marion Road is a north–south arterial road through the western suburbs of Adelaide, South Australia, named after its traversal through the suburb of Marion and the local government area of City of Marion. It is designated part of route A14.
Regency Road is a main east-west road forming a continuous connection between the inner northern suburbs of Adelaide, South Australia. Located approximately 6 kilometres (3.7 mi) north of the city centre, Regency Road carries a large amount of freight traffic, being located near Regency Park and the Churchill Road industrial area.
Prospect Road is a north–south road in the inner north suburbs of Adelaide, Australia.
McIntyre Road is an arterial road crossing through northern and northeastern suburbs of Adelaide in South Australia. It is designated route A18.
Grange Road is an arterial road in the western suburbs of Adelaide, South Australia. It runs from the coast at Grange to South Road, close to the city centre.
R1 (2017–present)
A21 (1998–2017)
Main North Road 
