In order to promote domestic and international standardization of ITS, each subsystem and information transmission (communication) link between subsystems was evaluated and scored based on the overall ITS system configuration clarified by the physical architecture, in terms of their contribution for maintaining the system generality, for example whether they are shared among numerous sub-services or are used frequently.
The figure below shows in color the sub-systems and communication links that scored more than half the maximum points.
Clarification of the standardization candidate areas
