GB Road Traffic Counts

Data are available for Annual Average Daily Flows (AADFs) for count points on major roads (motorways and A roads) and minor roads (B, C and unclassified roads). Traffic figures for major roads are also available (in vehicle kilometres and vehicle miles).

AADF figures are produced for each junction to junction link on the major road network for every year.

Only a sample of points on the minor road network is counted each year and these counts are used to produce estimates of traffic growth on minor roads.

A description of how annual road traffic estimates are produced is available at http://assets.dft.gov.uk/statistics/releases/traffic-estimates-2010/traffic-estimates-2010-methodology.pdf.