Abstract
This report gives the results for 1966 of a traffic census which has been in progress, since January 1956, at 50 points on the trunk and classified roads of great britian. Motor vehicle mileage on these roads in 1966 is estimated to have been 6 per cent highter than in 1965, 50 per cent highter than in 1960 and 107 per cent highter than in 1956. The motor vehicle mileage on all motorways in 1966 is estimated from counts, not forning part of the 50-points census, to have been rather more than 3 per cent of than on all other roads.