Travel time measures for the Strategic Road Network and local 'A' roads: July 2016 to June 2017
Statistics on travel time on the Strategic Road Network and on locally managed ‘A’ roads for the year ending June 2017.
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Some of the local ‘A’ road estimates presented in this release have been revised. Please see our February publication for updated figures and further details.
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.
The average delay and speed on the Strategic Road Network and local ‘A’ roads, for the year ending June 2017. There is an additional measure of reliability for the Strategic Road Network.
Strategic Road Network (SRN) for the year ending June 2017
The average delay is estimated to be 8.9 seconds per vehicle per mile compared to free flow, a 1.5% decrease on the previous year.
The average speed was 59.5 mph, similar (up 0.5%) to the previous year.
The reliability of travel times is measured using the Planning Time Index. This presents 67.7% of additional time needed compared to free flow, on average, on individual roads sections to ensure on time arrival. This is similar (down 0.4%) compared with the previous year.
Local ‘A’ roads for the year ending June 2017
The average delay is estimated to be 46.2 seconds per vehicle per mile compared to free flow, a 2.2% increase on the previous year.
The average speed was 25.2 mph, similar (down 0.5%) to the previous year.
Please note that figures for the SRN and local ‘A’ roads are not directly comparable.
Contact us
Road congestion and travel times
Email congestion.stats@dft.gov.uk
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