Maps in Action

G-NAF integral to geographic framework for ABS census


G-NAF integral to geographic framework for ABS census

Location-based data is a critical input for the Australian Bureau of Statistics (ABS) in conducting the census, the largest peace time operation undertaken in Australia. The ABS draw PSMA Australia’s national asset of comprehensive, quality and accessible spatial knowledge. This includes G-NAF, the country’s only authoritative national geocoded address file, as well as CadLite and Administrative Boundaries
To deliver the 2011 census, the ABS engaged more than 29,000 census collectors to distribute 14.2 million forms to nearly ten million Australian households.

PSMA data is used in both the planning and analysis phases of the census.

During planning, CadLite and Administrative Boundaries are used to determine the location of census geographic boundaries. G-NAF is then used to identify where people are located so that the workload for each collector may be planned. Each census collector is responsible for delivering and collecting forms from about 500 households in cities and around 200 households in regional areas.

During analysis, the continual enrichment of data provided by PSMA enables the ABS to create further linkages between statistical and location data, enabling broader comparison and richer analysis of data for governments and businesses alike.

PSMA Australia has a strong connection to national census taking in Australia, with 2011 being the fourth census where PSMA Australia has provided support to the ABS. PSMA Australia was originally formed as a joint venture between Australia’s government mapping agencies to provide a national street-level digital map database to support the 1996 census. This involved integration of the nation’s first multi-resolution, digital, national topographic data set.

Courtesy of PSMA Australia Limited

G-NAF integral to geographic framework for ABS census