This Paper presents the final results from a BTE survey of trucks passing through checking stations located on the Hume and Pacific Highways in NSW at Marulan and Berowra respectively. The aim of the survey was to obtain information on the quantity and nature of road freight travelling to and from Sydney along these two major highways, for use in BTE research studies. The survey commenced in mid 1972 and terminated in mid 1978. This period is an interesting one as there was considerable growth in tonnage handled by the goods trucking industry, particularly intrastate freight.