traffic census results for 1970

this report gives estimates of the volume of traffic in great britain in 1970,together with figures for earlier years.the figures are based on manual censuses at over 1,000 points giving levels for 1960 and 1966:estimates for the other years have been obtained by applying trends from regular censuses at 50 points from 1956 to 1965 and at about 200 points from 1966.more detailed results are given of the continuous automatic census at 50 points on trunk,principal and other roads,excluding former unclassified roads,which has been in progress since january,1956.the increase of motor traffic between 1969 and 1970 was five and a half percent which was near the average rate for recent years.in 1970 travel on motorways represented four and a half per cent of travel on all roads (a).