A VALIDATION OF SUBSIDIARY REACTION TIME AGAINST DETECTION OF ROADSIDE OBSTACLES DURING PROLONGED DRIVING

Indirect psychological or physiological measures of driving performance are often used without supporting evidence, or even comment, on their validity. In this validation the performance of ten subjects on a subsidiary reaction time (rt) task and a visual detection task was correlated. On the rt task, 93 db auditory signals were presented with an average intersignal interval of 50 s. On the detection task, the subjects had to brake as fast as possible when they perceived a 40 x 40 cm obstacle at the side of the road. Over the test of three hours, in night driving conditions on a closed 5 km track, the correlation between group averages was -0.78 and the average within-subject correlation was -0.47. From these results, and a discussion of the predictive and the construct validity of the rt task, it is concluded that subsidiary rt may be used as a valid indicator of changes in efficiency of driving performance. /Author/TRRL/

  • Availability:
  • Corporate Authors:

    Taylor & Francis

    4 Park Square, Milton Park
    Abingdon,   United Kingdom  OX14 4RN
  • Authors:
    • Laurell, H
    • Lisper, H O
  • Publication Date: 1978-2

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00182674
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Dec 3 1978 12:00AM