Consideration of Driving Readiness during Automated Driving


EORT (Eyes-off-road time) as a metric of driver’s readiness to take over driving was investigated, under automated driving condition in curves using a fixed driving simulator. Two experiments were carried out. In first experiment, it was found that drivers tended to reduce EORT, according to the increase of driving task demand characterized by radius of curvature when they were aware of taking over. This trend was same as in manual driving. Time prediction to regain normal steering control by use of EORT metric after the sudden taking over was also experimented. It was found that multiple regression equation including both task demand, and EORT, may predict the time to regain normal steering control. Consequently, it is suggested that both EORT and task demand are to be included in a metric of readiness to estimate time to regain driving control.自動運転中のドライバの運転準備状態指標として脇見時間を考え,脇見時間に関し2 つの実験を行った.カーブ走行シーンにおいて,自動運転中であっても運転に対して準備している状態ではドライバは脇見を抑制し潜在運転能力を高く維持していることがわかった.また,自動運転中の脇見時間とカーブ曲率半径から求めたタスクディマンドによって,通常運転への復帰時間を予測できる可能性がわかった.


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  • Accession Number: 01676674
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: May 15 2018 3:08PM