Information about the reliability of journeys on motorways and ‘A’ roads managed by the Highways Agency in the year ending January 2013.
We have implemented some methodology changes this month to improve the quality of these statistics. As expected, the changes have resulted in a shift in the estimated level of journey time reliability and revisions to the historical national series. Further information on the methodology changes is provided in Section 2 of this release.
- in the year ending January 2013, provisional data show that 78% of journeys on the Highways Agency managed network were ‘on time’ - this is 0.6 percentage points lower than the previous year, ending December 2012
- provisional data show that 73.5% of journeys on the Highways Agency network during January 2013 were ‘on time’, down 7.3 percentage points from January 2012
Information on road congestion and reliability statistics, including the pre-release access list and related technical documentation can be found here.
Road congestion and travel times
SRN travel time measures 020 7944 4427
Local congestion and speeds 020 7944 6579