2021 Volume 45 Issue 3 Pages 172-181
Dynamic speed management on motorways has been adopted in many Western Countries, while it is not common in Japan. This paper introduces the overview of the system, theoretical background and its effect on traffic flow and level of service based on literature reviews. Furthermore, the results of comparative analysis on the perception of the ordinary drivers to speed limits on motorways between Japan and UK are reported. Finally, we discuss the future challenges and possibilities for installing the dynamic speed management on motorways in Japan.