COMPARISONS WITH PREVIOUS SURVEY RESULTS
This survey has been designed to provide a measure of total distance travelled and tonne-kilometres for each state/territory of registration by type of vehicle. While comparisons are made between 2005 survey results and earlier iterations of the SMVU, the survey has not been designed to provide accurate estimates of change.
Care should be taken in drawing inferences from changes in data over time as movements may be subject to high relative standard errors and the resulting estimates of movements may not be considered statistically significant. See Explanatory Notes paragraph 14.
Additional information about the reliability of the level and movement estimates is given in the Technical Note.
REVIEW OF 2003 SMVU ESTIMATES
Following compilation of the 2004 estimates, the results for 2003 were reviewed to investigate concerns regarding coherence. As a result, the ABS decided not to publish the 2003 estimates in the 2004 publication and indicated to users that an investigation would occur and advise of the outcome at a later date.
The review did not indicate any systemic quality concern with the 2003 stratification and estimation process. For this reason, the ABS does not consider it necessary to re-release the 2003 SMVU estimates. The official 2003 estimates are those contained in the publication Survey of Motor Vehicle Use, Australia, 2003 (cat. no. 9208.0). For the information of users, summary tables of the 2003 post-stratified estimates are presented in Review of 2003 SMVU Estimates.
For further information about these and related statistics, contact the National Information and Referral Service on 1300 135 070.