Accessibility/Remoteness Index of Australia
The Accessibility/Remoteness Index of Australia (ARIA+) is an index of the accessibility of places to service centres, or conversely of remoteness of places.
Geographical areas are given a score (continuous between 0 to 15) based on the road distance to service towns of different sizes. Scores for regions are derived by averaging scores of 1 km2 grid. The index scores are classified into the following categories:
1. Highly Accessible (ARIA score 0<0.20)—relatively unrestricted accessibility to a wide range of goods and services and opportunities for social interaction.
2. Accessible (ARIA score 0.20<2.40)—some restrictions to accessibility of some goods, services and opportunities for social interaction.
3. Moderately Accessible (ARIA score 2.40<5.95)—significantly restricted accessibility of goods, services and opportunities for social interaction.
4. Remote (ARIA score 5.95<10.5)—very restricted accessibility of goods, services and opportunities for social interaction.
5. Very Remote (ARIA score 10.5<15)—very little accessibility of goods, services and opportunities for social interaction.
Further information can be found at the Australian GISCA website.
Last reviewed: Jun 3, 2008, Last modified: May 28, 2008
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