Average speed, delay and reliability of travel times (CGN)
Data on the average speed, delay and reliability of travel times on the Strategic Road Network (SRN) and local 'A' roads, produced by Department for Transport.
Average speed, delay and reliability of travel times on SRN (CGN04)
CGN0404:
CGN0405:
Average speed and delay on local ‘A’ roads (CGN05)
CGN0503:
CGN0504:
Contact us
Road congestion and travel times
Email congestion.stats@dft.gov.uk
SRN and local 'A' roads travel time measures 020 7944 3095
Last updated 9 March 2023 + show all updates
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The tables have been updated to include data from January 2019 to December 2022
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Data tables updated for the travel time measures for SRN and local 'A' roads for October 2021 to September 2022.
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The tables have been updated to include data up to June 2022.
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Data tables updated for the travel time measures for SRN and local 'A' roads for April 2021 to March 2022.
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Data tables updated for the 2021 travel time measures report.
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New data tables created to reflect changes to the data provider.
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Data tables updated for April 2020 to March 2021 travel time measures report.
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Data tables updated for the 2020 travel time measures report.
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Data tables updated for year ending September 2020 statistics release.
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Data tables updated for year ending June 2020 statistics report.
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Data tables updated for year ending March 2020 statistics release.
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All data tables updated for the 2019 travel time measures report.
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Updated tables for 'Travel time measures for the Strategic Road Network and local ‘A’ roads: July 2018 to June 2019'.
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Data tables updated for the April 2018 to March 2019 statistics release.
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All data tables updated for the 2018 travel times report.
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Data tables updated for the year ending September 2018 report.
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Data tables updated for the year ending June 2018.
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First published.