Collection

Road congestion and travel times

Statistics and data about road congestion and travel times on the Strategic Road Network and local 'A' roads.

Some of the original 2017 estimates for local ‘A’ roads have been revised. The main impact is to the local ‘A’ road morning peak figures for January and February 2017. Estimates for the Strategic Road Network are unaffected. Please see our February publication for updated figures and further details.

This page provides travel time measures for the Strategic Road Network (motorways and ‘A’ roads managed by Highways England) and for locally managed ‘A’ roads in England. For each, there is a measure of speed and delay, with an additional measure of reliability for the Strategic Road Network.

All supporting statistical tables are updated on a quarterly basis. For local ‘A’ road statistics, we provide statistics by region and local highway authority which are updated on an annual basis (in February).

Historically, we published separate statistical reports for travel time measures on the Strategic Road Network and locally managed ‘A’ roads. These were produced on a quarterly basis (in February, May, August and November). Following user feedback we decided to combine the statistical releases, with the first combined release published for the second quarter of data for 2017. From February 2018 onwards we no longer intend to publish quarterly travel time statistical reports. Instead, we will publish an annual report (in February), although we will continue to update the supporting tables on a quarterly basis.

Technical information

These statistics used to monitor road congestion and journey time reliability are compiled from journey time data from in-vehicle global positioning systems (GPS) and flows estimated using automatic traffic counters and the department’s manual traffic count data.

The road congestion and travel times statistics guidance contains a brief introduction into these statistics, including what they measure, how they are published and how they are used. The guidance also includes technical information relating to the reliability of journeys on the Highways England’s network and on locally managed ‘A’ roads, plus information on public attitudes and research and development.

The road congestion table index lists all the tables, including archived statistics.

National statistics

All of the statistics published are National Statistics. Road congestion and reliability statistics were assessed by the UK Statistics Authority and confirmed as National Statistics in July 2012.

Raw data available for download

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 list.

Contact us

Road congestion and travel times

Latest travel times statistics

Publications

  1. Travel time measures for the Strategic Road Network and local 'A' roads: April 2017 to March 2018
  2. Travel time measures for the Strategic Road Network and local 'A' roads: January to December 2017
  3. Travel time measures for the Strategic Road Network and local 'A' roads: October 2016 to September 2017
  4. Travel time measures for the Strategic Road Network and local 'A' roads: July 2016 to June 2017
  5. Travel time measures for the Strategic Road Network: April 2016 to March 2017
  6. Travel time measures for local ‘A’ roads, England: April 2016 to March 2017
  7. Travel time measures for the strategic road network: January 2016 to December 2016
  8. Travel time measures for local ‘A’ roads, England: January 2016 to December 2016

Publications 2016

  1. Travel time measures for the Strategic Road Network: October 2015 to September 2016
  2. Travel time measures for local ‘A’ roads, England: October 2015 to September 2016
  3. Travel time measures for the strategic road network: July 2015 to June 2016
  4. Travel time measures for local 'A' roads, England: July 2015 to June 2016
  5. Travel time measures for the strategic road network: January to March 2016
  6. Travel time measures for local 'A' roads, England: April 2015 to March 2016
  7. Analysis of travel times on local ‘A’ roads, England: 2014
  8. Congestion on local 'A' roads, England: October to December 2015
  9. Travel time measures for the strategic road network: October to December 2015

Publications 2015

  1. Travel time measures for the strategic road network: April to September 2015
  2. Congestion on local 'A' roads, England: July to September 2015
  3. Congestion on local 'A' roads, England: April to June 2015
  4. Analysis of travel times on the strategic road network, England: 2014
  5. Reliability of journeys on Highways Agency roads, England: January to March 2015
  6. Congestion on local 'A' roads, England: January to March 2015
  7. Reliability of journeys on Highways Agency roads, England: October to December 2014
  8. Congestion on local ‘A’ roads, England: October to December 2014

Publications 2014

  1. Reliability of journeys on Highways Agency roads: July to September 2014
  2. Congestion on local ‘A’ roads, England: July to September 2014
  3. Congestion on local ‘A’ roads, England: April to June 2014
  4. Reliability of journeys on Highways Agency roads, England: April to June 2014
  5. Congestion on local ‘A’ roads, England: January to March 2014
  6. Reliability of journeys on Highways Agency roads, England: January to March 2014
  7. Reliability of journeys on Highways Agency roads, England: October to December 2013
  8. Congestion on local ‘A’ roads, England: October to December 2013

Publications 2013

  1. Reliability of journeys on the Highways Agency's motorway and A road network: November 2012
  2. Congestion on local authority managed 'A' roads: October to December 2012
  3. Reliability of journeys on the Highways Agency's motorway and A road network: December 2012
  4. Reliability of journeys on the Highways Agency's motorway and A road network: January 2013
  5. Reliability of journeys on the Highways Agency's motorway and A road network: February 2013
  6. Congestion on local authority managed 'A' roads: January to March 2013
  7. Reliability of journeys on the Highways Agency's motorway and A road network: March 2013
  8. Reliability of journeys on the Highways Agency's motorway and A road network: April 2013
  9. Reliability of journeys on Highways Agency’s motorway and ‘A’ road network: April to June 2013
  10. Congestion on local authority managed 'A' roads: April to June 2013
  11. Congestion on local ‘A’ roads, England: July to September 2013
  12. Reliability of journeys on Highways Agency roads, England: July to September 2013

Publications 2012

Data tables

  1. Average speed, delay and reliability of travel times (CGN)

Historic data tables

The following tables have been discontinued due to a methodological change in the production of congestion statistics.

  1. Highway Agency motorways and 'A' roads: ‘on time’ journeys (CGN01)
  2. Flow weighted vehicle speeds (CGN02)
  3. Flow weighted vehicle speeds, by region (CGN09)
Published 8 August 2013
Last updated 19 July 2018 + show all updates
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