Question to the Department for Transport:

To ask Her Majesty’s Government whether the accident rate on the M4 motorway between junctions 10 and 12 is equivalent to the average rate for all motorways; and how many accidents in the last year on that part of the motorway involved heavy lorries.

The accident rate for 2012-2014 on the M4 between junctions 10 and 12 is below the average rate for all motorways. There were 7 personal injury accidents in 2014 involving heavy lorries on this section of the motorway.

This is based on the latest validated accident data Highways England holds for the Road Network for 2014, with the 2015 data due to be released in October 2016.