2018 年 2018 巻 1 号 p. 147-151
This study on the speediness and safety of the Advanced Rapid Transit (ART) system involved the building of on-board units for a Public Transportation Priority System (PTPS), and the evaluation of the effectiveness of the resulting Advanced PTPS. Specifically, the basic requirements were designed for the advanced PTPS on-board units, which communicate with roadside units that control traffic signal timings (i.e., to extend the green light interval or truncate the red, based on bus locations sent by the on-board units). These units also have a priority arbitration function, which grants priority over other buses when a bus meets the criteria for priority, as well as an HMI function, which notifies the priority status information and supports passage through the intersection. The extent to which Advanced PTPS improves timeliness and speediness, and its effects on general traffic were evaluated. It was clarified that Advanced PTPS and priority arbitration can improve both speediness and timeliness.