Identification of Age Threshold for Driving Performance

운전능력에 연관된 인적특성의 연령 임계점 연구

  • Kim, Tae-Ho (The Research Institute of Industrial Science, Hanyang University) ;
  • Ko, Joon-Ho (Seoul Development Institute) ;
  • Won, Jai-Mu (Department of SOC & Transportation Graduate School of Urban Studies, Hanyang University) ;
  • Hu, Ec (Department of SOC & Transportation Graduate School of Urban Studies, Hanyang University)
  • 김태호 (한양대학교 산업과학연구소) ;
  • 고준호 (서울시정개발연구원) ;
  • 원제무 (한양대학교 도시대학원) ;
  • 허억 (한양대학교 도시대학원)
  • Published : 2008.06.30


This study aims to identity the age group where driving performance significantly decreases based on the data collected from the Korea Transportation Safety Authority's driver aptitude tests in 2006. The test includes following six driving simulator-based tests: estimation of moving objects' speed, estimation of stopping distance, three tests for drivers' multi-task ability, and kinetic depth perception. These six test results were utilized for the identification of the age threshold applying the CART technique, suggesting driving ability significantly be decreased over 50s. This finding was confirmed by two analyses using the accident history data containing the information of accident and non-accident drivers and the degree of accident severity. The results of this study imply that accident prevention efforts should be enhanced over a wider range of age group than the current practice where the age of 65 is generally applied for the threshold dividing senior and non-senior driver groups.


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