Vehicle speed compliance statistics provides information on the speeds at which drivers choose to travel when free to do so, and their compliance with speed limits. They were published as free flow vehicle speed statistics before 2016.
These statistics on vehicle speeds in free flow conditions are not representative of average speeds across the whole road network. For such average speed statistics, please visit the road congestion and travel time statistics page.
Vehicle speed compliance statistics are produced by monitoring traffic speeds at about 100 sites using automatic traffic counters (ATC), deliberately located where external factors which might restrict driver behaviour are not present. Statistics are presented by different road types and by different vehicle types.