Vehicle speed compliance statistics

Statistics and data about the speed compliance on roads in Great Britain.

These statistics relate to speed compliance on roads in Great Britain. Speed compliance statistics provide information on the speeds at which drivers choose to travel and their compliance with speed limits, but should not be taken as estimates of actual average speed across the road network.

An index sheet of all the speed compliance tables is available.

Please note that these statistics were published as free flow vehicle speed statistics before 2016. The change of titles reflects a change in emphasis in the release towards compliance with speed limits and the wider themes of speeding and driver behaviour. Although average free flow speeds are still published, these are not representative of average speed across the wider road network. For such average speed statistics, please visit the road congestion and travel time statistics page.

Technical information

Speed compliance statistics are produced by monitored 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.

National administrations in England, Scotland and Wales are responsible for setting speed limits on motorways and trunk ‘A’ roads. Local authorities have the power to impose or vary speed limits on principal roads and on all other local roads. Details of speed limits by vehicle for different road categories can be found below.

Further technical information on speed compliance statistics:

User feedback

We continuously review the content of these statistics to ensure they are meeting users’ needs. A summary of the feedback we have received from users is available in Meeting customers’ needs: users and uses of road traffic statistics and data.

We continue to welcome any feedback on these statistics.

Contact us

Road traffic and vehicle speed statistics

National statistics

All of the statistics published are National Statistics. Speed compliance statistics was assessed by the UK Statistics Authority and confirmed as National Statistics in February 2013.

Pre-release access list

The post holders given access to these statistics up to 24 hours prior to release are available in the pre-release access lists for road traffic, speeds and congestion.

See all statistics published by DfT


Data tables

  1. Vehicle speed compliance statistics: data tables (SPE)
  2. Vehicle speed compliance: tables index
Published 27 June 2013
Last updated 27 September 2018 + show all updates
  1. New release published.
  2. New release published, summary text updated.
  3. First published.