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List of highways in South Australia

From Wikipedia, the free encyclopedia

List of highways in South Australia
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South Australia is distinctly divided into two main areas; the well watered and populated southeastern corner and the arid outback for the rest of the state. As a result, highways are concentrated mainly in the southeast. The Eyre Highway to Perth and Stuart Highway to Darwin are the only significant highways for the remaining part of the state. The remaining roads are outback tracks. This is the list of highways in South Australia.

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South Australia
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General highways map of South Australia
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Highways of south eastern South Australia
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Road numbering

Since 1955, South Australia had major rural roads numbered as part of national routes and Highways. In 1998/1999 South Australia introduced "Trailblazers" with A, B and M route numbers in the Metropolitan area and tourist areas of Victor Harbor and the Barossa Valley.[1][2] This system was extended to cover country areas starting in 1999/2000.[3]

These route numbers are used on signs and maps and distinct from the four digit numbers for major roads and eight digit numbers for streets used internally by the Highways Department.

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Expressways

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South Australian expressway
A9 Port River Expressway

In South Australia, expressway may refer to a controlled access highway with no at-grade intersections or a limited access road of slightly lower standard with at-grade intersections at some locations. Currently there are three constructed expressways in Adelaide:

  • Port River Expressway 5.5 km (3.4 mi), completed in 2008
  • Northern Expressway 23 km (14 mi), completed in 2010
  • North–South Motorway, made up of (from north to south)
    • the Northern Connector, 15.5 km (9.6 mi), completed in 2020;[4]
    • the South Road Superway, 2.8 km (1.7 mi), completed in 2014;[5]
    • the Regency Road to Pym Street stretch, 1.8 km (1.1 mi), completed in 2021;[6]
    • the Torrens to Torrens, 4 km (2.5 mi), completed in 2018[7]
    • the Torrens to Darlington project 10.5 km (6.5 mi), construction due to start 2023; [8]
    • The Gateway South Project (extended the Southern Expressway from Darlington to Tonsley, completed 2019)
    • Southern Expressway 21 km (13 mi) (formerly the world's longest reversible one way freeway), completed in 1997, with duplication completed in 2014
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National highways

Metropolitan

Rural

State highways

Metropolitan

Rural

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Major arterial roads

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Outback tracks

Although not highways as such, unsealed outback tracks form important links to remote communities and areas, the significant ones include;

See also

References

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