自動運転車両向け遠隔監視システムにおける情報提示を対象とした復旧対応時の状況理解に与える特徴の分析

抄録

For the practical implementation of autonomous driving, it is required that a single operator remotely monitors multiple vehicles and performs recovery operations as needed. To achieve this, it is essential to reduce the burden on operators during recovery operations. This study evaluates the impact of information presentation of remote monitoring systems on the operator’s workload and work efficiency. The remote monitoring systems used in previous autonomous driving demonstration experiments can be classified into two types based on the differences in their expression of the recognition and judgment of autonomous driving systems. We conducted experiments simulating these two systems and analyzed the characteristics and challenges of each system. The results indicated that the system providing system-level information allowed operators to pay attention to objects that humans typically do not focus on, while it might increase annoyance in high-traffic situations. On the other hand, in the system that presents information concisely with diagrams, although there are objects that are difficult to notice, if the provided information is appropriate for situation understanding, it can guide operators’ attention and potentially reduce the operation time.