Average delay, average speed and reliability of travel times on the strategic road network (motorways and ‘A’ road network managed by Highways England), for the year 2016.
The average delay is estimated to be 9.0 seconds per vehicle per mile compared to free flow. This is similar to (0.2% down on) the year ending September 2016.
The average speed was 59.3mph. This is similar to (0.1% increase on) the year ending September 2016.
The reliability of travel times is measured using the Planning Time Index. This presents 69% of additional time needed compared to free flow, on average, on individual road sections to ensure on time arrival. This is unchanged on the year ending September 2016.