THE PERCEPTION OF MANOEUVRES OF MOVING VEHICLES. PROGRESS REPORT VI. IMPLICATIONSS OF PSYCHOPHYSICAL THRESHOLD MEASUREMENTS FOR THE NIGHT DRIVING SITUATION

After a review of the principal results contained in the previous reports in this series a generalized equation is derived which expresses threshold speed in depth for relative movement as a function of observation distance and observation duration. On the basis of this equation calculations are then made to yield values of two important temporal parameters in car-following, viz, 'time until collision' and 'free time'. It is shown that there are circumstances in which these parameters take values which are too short for the driver to escape a collision after he has detected that he is closing on a lead vehicle. Suggestions to improve the car-following situation, in human factors terms, are presented.

  • Supplemental Notes:
    • This project was sponsored by the Institute for Road Safety Research SWOV, Voorburg.
  • Corporate Authors:

    TNO INSTITUTE FOR PERCEPTION

    KAMPWEG 5, PO BOX 23
    SOESTERBERG,   Netherlands  3769 ZG
  • Authors:
    • Janssen, W H
  • Publication Date: 1974

Media Info

  • Features: Figures; References;
  • Pagination: 22 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00098804
  • Record Type: Publication
  • Source Agency: Highway Safety Research Institute
  • Report/Paper Numbers: IZF 1974-C12 Final Rpt.
  • Files: TRIS
  • Created Date: Oct 18 1975 12:00AM