KTH ITRL and VTI have completed the research project System-level impacts of self-driving vehicles (Systemeffekter av Självkörande fordon) in collaboration with Trafikverket, who also commissioned the project. The purpose of the project was to increase Trafikverket’s understanding of what role self-driving vehicles may have in a sustainable transport system and how it affects Trafikverket’s planning and forecasts. The research project was conducted in the form of a PhD (licentiate) project by Albin Engholm (KTH ITRL) together with Anna Pernestål (KTH ITRL) and Ida Kristoffersson (VTI) who also act as PhD supervisors. Peter Smeds was Trafikverket’s project leader. Throughout the project, several people at Trafikverket have provided input to the project.