Last updated on 24 Nov 2011
Prior to the abolition of tolls on 11 February 2008, northbound traffic figures recorded by toll collection were reported. These were extremely accurate having been audited and accounted for.
Click here to view historical toll collection data.
Comparison of WiM station data with toll collection data shows a margin of error of less than 1%.
Click here to view a comparison of data from 2006-2008.
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