자율주행차 운행 안전성 확보를 위한 탑승자 반응속도 연구 : 레벨 3 단계 이상을 기준으로

Abstract

This study, the speed of responding to unexpected situations of passengers was studied to secure driving stability at level 3 or higher of autonomous vehicles. The number of participants in the study was 127, and it was measured using a response speed measurement simulator under virtual autonomous vehicle driving conditions. The response speed in an unexpected situation was measured by driving it into three conditions: attention concentration, mobile phone video viewing, and mobile phone text writing. As a result of the study, the average reaction speed in the state of attention was .87 seconds, the average reaction speed in the state of watching a mobile phone video was 5.04 seconds, and te average reaction speed in the state of writing a mobile phone txt was 5.50 seconds. In all three situations, the difference in response speed according to age was shown, and the response speed increased significantly with age. These findings showed that passengers who neglect to watch ahead cannot be convinced that drivers are safe drivers who focus their attention on risks arising from normal vehicle driving, depending on the vehicle control technology implemented in the third stage of autonomous driving. Through the discussion, a plan to control the imbalance between the technology level currently implemented and the technology level aimed at and the technology level that the autonomous driving system aims for was proposed.