Understanding and counter measures for driver's risk compensation in semi-automated driving

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K15252
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 25020:Safety engineering-related
• Research Institution: Okayama University
• Principal Investigator: Doi Toshihisa 岡山大学, 自然科学学域, 助教 (20794077)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: ビジランス / 自動運転 / 覚醒水準 / 監視作業

Outline of Final Research Achievements

In semi-automatic driving situations, there is a concern that the driver's attention may decrease during the monotonous monitoring task. In the Level 2 and Level 3 automatic driving levels, even though the system controls acceleration/deceleration and steering, the range is limited. Therefore, it is undesirable for the driver's attention to continue to be decreased for safe driving. In order to improve safety in long-term semi-automated driving situations, this study investigated the effects of long-term semi-automated driving on driver vigilance and arousal level. Moreover, this study examined how to maintain vigilance and improve the performance of monitoring tasks. In addition, a fundamental study was conducted to estimate the driver arousal level based on the trends in the driver's physiological indices over time.

Free Research Field

人間工学, 人間機械系, 人間中心設計

Academic Significance and Societal Importance of the Research Achievements

自動運転車についての研究開発の進展は目覚ましく，Level 2，Level 3の自動運転車はすでに市場に多く登場している．これらはドライバの負担を軽減し，快適性・安全性を向上させることが期待されているが，ドライバに要求される作業が異なることによる安全上の課題も懸念される．本研究では，自動運転中の監視作業がドライバの挙動やパフォーマンスに与える影響を理解し，自動運転車の安全性向上に寄与するものである．