The Department for Transport record motor vehicle traffic (vehicle miles) by local authority in Great Britain on an annual basis. The time series goes back to 1993.
The number of vehicle miles travelled in NECA and nationally both reached a peak in 2007. The financial crisis reversed the upward trend and it was 2010 before traffic started to increase.
By 2016 the national (GB) figure was 324 billion vehicle miles, 10 billion up on the 2007 figure; a 3.1% rise. In NECA, the number of vehicle miles travelled in 2016 was 8.8 billion, 137 million above the 2007 peak; a 1.6% rise. The graph shows indexed trends for NECA and England, indexed to 2007.