Question to the Department for Transport:

To ask the Secretary of State for Transport, what estimate his Department has made of the change in total traffic volumes across the entire road network over present levels by (a) 2020, (b) 2030 and (c) 2040.

The Department’s most recent published road traffic forecast for England was published in 2015.

Compared to the traffic volumes in 2014, the latest year for which traffic statistics are available for England, the Department forecasts that traffic volumes will be:

a) 4-20% higher in 2020

b) 11-38% higher in 2030

c) 15-52% higher in 2040

More detailed information can be found on the Department for Transport pages on GOV.UK.