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.
- This project was sponsored by the Institute for Road Safety Research SWOV, Voorburg.
TNO INSTITUTE FOR PERCEPTIONKAMPWEG 5, PO BOX 23
SOESTERBERG, Netherlands 3769 ZG
- Janssen, W H
- Publication Date: 1974
- Features: Figures; References;
- Pagination: 22 p.
- TRT Terms: Drivers; Equations; Human factors; Motion; Motor vehicles; Reaction time; Speed
- Uncontrolled Terms: Driver reaction; Moving vehicles
- Subject Areas: Highways; Safety and Human Factors;
- 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