According to statistics today published by the Department for Transport, estimated traffic levels in Great Britain rose by 1.4 per cent between 2005 and 2006, the first year that total traffic has exceeded 500 billion vehicle kilometres.
Car traffic accounted for 79 per cent of all motor vehicle traffic, an increase of 1.3 per cent over the past year.
Pedal cycle traffic was estimated at 4.6 billion vehicle kilometres in 2006, an increase of 5 per cent from 2005.
Car journeys have also become longer. The average journey time has increased on the slowest routes by 2.5 per cent, while the average vehicle delay on the slowest journeys has increased during the evening peak.
The average traffic speed across the major road network, excluding London, was 17.8 mph during peak periods and 21.6 mph during off-peak periods in 2006. The peak speed was virtually unchanged from 2004.