This paper summarizes work from a BRRC working group with external experts, which examines the contribution of infrastructure to road traffic safety, regarding connected and autonomous vehicles. We gained insight into relevant traffic safety matters linked to the road infrastructure component. The working group addressed questions such as: are advanced vehicles safer than traditional vehicles? How do new risks relate to potential road safety gains? What relevant background information is available? What about the role of road infrastructure, traffic signs and road markings? How important are digital twins? Based on literature review and expert discussions, relevant knowledge about road infrastructure issues in relation to the safe authorization of autonomous vehicles was collected and summarized in a BRRC publication for road owners and other partners in the road construction sector. The most important conclusions are presented in this article.