Intelligent Technological Solutions, particularly RRFBs, have been extensively and successfully tested on United States roads, with proven positive effects for crash reduction. Given their relative ease of implementation, such solutions are the most promising for addressing and mitigating the phenomenon of wrong-way driving in the European road context. Based on the findings of this study, a proposal for a tailored countermeasure suitable for implementation within the European countries was proposed.
Guadagno et al. (2026) studied this question.