Question to the Department for Transport:

To ask the Secretary of State for Transport, how many road traffic accidents have occurred as a result of smart motorway technology since 2019.

The latest safety data and assessment can be found in National Highways’ Third Year Progress Report, which was published in December 2023: https://nationalhighways.co.uk/our-work/smart-motorways-evidence-stocktake/.

Overall, the data shows that in terms of serious or fatal casualties, smart motorways are the safest roads on the Strategic Road Network (SRN).

National Highways has undertaken contributory factor analysis to help further understand which factors which lead to collisions on the SRN. This analysis can be found in the above report.