This dataset contains a snapshot of commuting patterns for Census day 1991 (Tuesday 6th August). It is a complete enumeration via a self-completion Census form. The scope of JTW is employed persons aged 15 years and over, who were employed during the week before Census night, and resident in the Greater Metropolitan Area (GMA) JTW data may produce slightly different counts to those obtained directly from the Australian Bureau of Statistics (ABS) for the same geographic level due to: * ABS confidentialising process is applied to the data that TPA purchases (randomisation of small cells) * Further validation and adjustment of the data undertaken by TPA * Imputation of records of incomplete addresses to eliminate locality ‘dump’ codes ABS data is used with permission from the Australian Bureau of Statistics

Study of the Potential for Future Work on Methods of Determining Residual Oil, Final Report, April 1979