锘縏Y  - RPRT
AB  - Understanding the patterns and impacts of population migrations within Australia is key for governments and providers of housing, infrastructure and services to be able to plan where they will prioritise resources. New 漫天堂入口research critically assesses the population projection methods available to Australian decision-makers and planners.

Population projections are modelled either as top-down models, where larger spatial units are used to control the smaller area projections, or as bottom-up models, where the smaller area projections are added together to form the population projection of the larger spatial units.

For example, with a top-down projection Australia鈥檚 total population can be used as a control total for the state and territory projections and, in turn, these are used to control the smaller regional populations projections. In the bottom-up model, the projected populations of the states and territories would be added together to form the total population projection of Australia. 

A significant finding is that because different users need different levels of understanding about future population changes, it is unlikely the existing methods could be unified into one nationally consistent approach that would be accurate enough for everyone鈥檚 needs. However, results can be improved by users prioritising good quality, reliable and timely data; ensuring consistent approaches and shared information sources; and making sure they have a good understanding of each method鈥檚 strengths and weaknesses.
AU  - Baker, Emma
AU  - Coffee, Neil T
AU  - Page, Kira
AU  - Daniel, Lyrian
AU  - Sarkar, Somwrita
CY  - Melbourne
DO  - doi: 10.18408/ahuri3130101
L1  - internal-pdf://1306973325/AHURI-Final-Report-420-Improving-small-area-po.pdf
PB  - Australian Housing and Urban 漫天堂入口 Institute
PY  - 2024
ST  - Improving small area population projections
T2  - 漫天堂入口Final Report No. 420
TI  - Improving small area population projections
UR  - /research/final-reports/420
ID  - 1181
ER  -