Theme Current Status
In each jurisdiction, the land management or mapping agency creates and manages datasets representing the location of a road. This may be integrated from data held by transport authorities or derived from GPS data, roads defined in the cadastre, or interpreted from satellite or airborne imagery. New roads derived from subdivisions are included in state and territory datasets within 2 weeks of being lodged.
Until 2006, data captured under Commonwealth mapping programs was not integrated with state and territory datasets. Since 2006, data captured in collaboration with the Commonwealth under the National Topographic Information Coordination Initiative will also be incorporated into state/territory datasets – these are mostly roads in rural and remote areas which have not been revised for up to 20 years. As these are significant updates to a large number of roads over large areas, these will take some time to be integrated into state and territory roads datasets.
Roads datasets are released as products by the states and territories, or supplied to PSMA Australia Pty Ltd (PSMA) for aggregation into a national information product and distributed through value-added reseller networks.
There is currently no single vertical integration of all eight transport datasets, as listed, for a national coverage.