Wales achieved a 26% reduction in casualties on 20/30mph roads when a default 20 was set. But if you exclude the casualties on roads that didn't change the reduction increases to 37%. See the 1st presentation in our webinar
Delivering 20 - Webinar 5. 20mph for Safer StreetsOur 5th Delivering 20 webinar where we explore the evidence, delivery and impact of implementing 20mpoh as a norm in communities.vimeo.com