questionText: To ask the Secretary of State for Transport, whether her Department has conducted analysis of 20mph zones introduced across different localities in England comparing their impact on number of incidents, serious injuries and fatalities; and whether her Department has developed best practice guidance to ensure consistent delivery.
answerText: The Department’s comprehensive three-year evaluation of the effect of 20mph signed-only limits was published on 22 November 2018. It substantially strengthened the evidence base on perceptions, speeds and early outcomes associated with 20mph speed limits....
heading: Speed Limits