Analysis of Factors Influencing Driver Fatigue Accumulation on Long Trips and Classification of Individual Differences of the Fatigue Accumulation during Long-Term Driving

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  • 長時間運転での疲労蓄積への影響要因の分析とドライバーの疲労蓄積タイプの分類
  • チョウジカン ウンテン デ ノ ヒロウ チクセキ エ ノ エイキョウ ヨウイン ノ ブンセキ ト ドライバー ノ ヒロウ チクセキ タイプ ノ ブンルイ

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This paper describes an investigation of factors influencing driver’s fatigue while driving for a long time and a classification of drivers based on the obtained factors that are related to a sensitivity to fatigue during the long-trip drives. We conducted questionnaire survey which included candidates of the influencing factors on the driver’s fatigue on long trips, changes of driver’s conditions related to the driver’s fatigue, and compensatory behaviors after the driver feels the fatigue. The factor analysis suggested five factors: careful and frequent operations, deceleration due to movements of other vehicles, disturbance of concentration on driving operations, bad conditions of road environments, and bad physical conditions. The cluster analysis of the factor scores indicates two main types and six subgroups of drivers sensitive to the fatigue resulting from long-term driving.

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