Some of the previously published 2017 estimates for local ‘A’ roads have been revised. The updated figures are presented in this release.
The main impact is to the local ‘A’ road morning peak figures for January and February 2017. Details can be found below, in “Revision to 2017 travel time measures for locally managed ‘A’ roads”. Estimates for the Strategic Road Network are unaffected.
Strategic Road Network (SRN) in 2017
The average delay is estimated to be 9.0 seconds per vehicle per mile compared to free flow, similar to 2016 (up 0.2%).
The average speed is estimated to be 59.4 mph, similar to 2016 (up 0.1%).
67.7% of additional time was needed compared to free flow, on average, on individual road sections of the SRN to ensure on time arrival. This is down 0.9 percentage points compared to 2016, so on average a smaller proportion of additional time is required.
Local ‘A’ roads in 2017
Average delay is estimated to be 46.9 seconds per vehicle per mile compared to free flow, a 2.3% increase on the previous year.
Average speed is estimated to be 25.2 mph, the same as in the previous year.
Please note that figures for the SRN and local ‘A’ roads are not directly comparable.