RAC roads policy spokesman Nick Lyes said: “While traffic has only increased very slightly on the previous year it has taken us to record levels, but the longer term picture is more concerning with overall traffic since 1995 growing by 18.6% in stark contrast to the overall length of our roads which has only increased by 2.4%.
“The data shows the length of motorways increased by 11.8%, however in the same period traffic levels on motorways increased by 44%, demonstrating that major road usage is outstripping road space.
“The number of cars in Britain has shot up by 43% from 21 million in 1995 to over 30 million in 2015, yet in that time the country’s roads are just under 6,000 miles longer.
“Having a road network that is fit for purpose, in terms of being able to cope with increased traffic as well as being maintained to an acceptable level, is vital for a prosperous economy. There is little doubt that the Government’s Road Investment Strategy recognises the importance of this, but these figures show there is a lot of catching up that must be done.”