Question to the Department for Transport:
To ask the Secretary of State for Transport, what assessment he had made of the potential effect on road casualties of introducing a default 20mph speed limit on residential streets.
The Department published a comprehensive three-year evaluation of the effect of 20mph signed-only limits on 22 November 2018.
The research substantially strengthens the evidence base on perceptions, speeds and early outcomes associated with 20mph speed limits, and is the only major UK study to consider multiple case study areas and provide a national view.
The headline findings were: