Multivariate Analysis of the Relationship between Drivometer Variables and Drivers' Accident,Sex,and Exposure Status

Abstract

Drivers classified by sex, accident history, and driving exposure drove a 50--km route in an instrumented car. Run time, speed changes, fine and coarse steering--wheel reversals, accelerator and brake applications, lateral accelerations, gear changes, traffic--free speed, signals, and overtaking were recorded. Aggression and anxiety tests were also administered, and discriminant analyses were performed on the results. In general, the personality variables did not discriminate between driver groupings. With regard to driving variables, however, significant and important discriminations between groups were made. Accident--involved drivers drove more quickly on clear roads, moved about more, and overtook in traffic. When moderate--exposure drivers were examined, both female and male accident--free drivers were typified by relatively low mean clear speed, infrequent overtaking, and frequently being overtaken. In addition, accident--free females used the brakes relatively infrequently. Accident--free males did not move the car about in traffic. Overall, high--exposure male drivers tended to drive relatively quickly, but those who were accident free were typified by adjusting their car to changing conditions (brake applications, gear changes, accelerator applications, and possibly coarse steering--wheel reversals).

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References

Brown, I. D. Subjective and objective comparisons of successful and unsuccessful trainee drivers. Ergonomics, 1966, 9, 49–56.

Brown, I. D. , Simmonds, D. C. V. , and Tickner, A. H. Measurement of control skills, vigilance and performance on a subsidiary task during 12 hours of car driving. Ergonomics, 1967, 10, 665–673.

Clark, J. E. and Cribbins, P. D. Traffic volume measurement using drivometer events. Highway Research Record, 1968, 230, 32–44.

Eysenck, H. J. and Eysenck, S. B. G. The Eysenck Personality Inventory. London: University of London Press, 1963.

Greenshields, B. D. Driving behavior and traffic accidents. In Proceedings of Sixth International Study Week in Traffic Engineering/Road Safety Congress 10–16 September, Salzburg, Austria. Theme 5, Part 5, 1–8. London, England: World Touring and Automobile Organization, 1962.

Greenshields, B. D. Driving behaviour and related problems. Highway Research Record, 1963, 25, 14–32.

Greenshields, B. D. and Platt, F. N. Development of a method of predicting high accident and high violation drivers. Journal of Applied Psychology, 1967, 51, 205–210.

Hays, W. L. Statistics for the social sciences (2nd ed.). London: Holt, Rhinehart, and Winston, 1973.

Johns, T. R. and Bundy, H. L. Driver performance in young males as measured by the Highways Systems Research Car. Chapel HiII, NC: University of North Carolina, 1974.

10.

King, L. E. and Plummer, R. W. Lateral vehicle placement and steering wheel reversals on a simulated bridge of variable width. Highway Research Record, 1973, 432, 61–69.

11.

King, S. E. , Scheier, I. H. , and Cattell, R. B. Handbook for the IPAT Anxiety Scale. Urbana, IL: Institute for Personality and Ability Testing, 1976.

12.

McLean, J. R. and Hoffmann, E. R. Steering revcrsals, measures of driver performance and steering task difficulty. Australian Road Research Board, Vermont, Victoria, Australia, Report No. 11, July, 1973. (a)

13.

McLean J. R. , and Hoffmann, E. R. The effects of restricted preview on driver steering control and performance. Human Factors, 1973, 15, 421–430. (b)

14.

McLean, J. R. and Hoffmann, E. R. Steering reversals as a measure of driver performance and steering task difficulty. Human Factors, 1975, 17, 248–256.

15.

Nie, H. N. , Hadlai--Hull, C. H. , Jenkins, J. G. , Steinbrenner, K. , and Bent, D. H. Statistical package for the social sciences (2nd ed.). New York: McGraw--Hill, 1975.

16.

Overall, J. E. and Klett, C. J. Applied multivariate analysis New York: McGraw--Hill, 1972.

17.

Parry, M. H. Aggression on the road. London: Tavistock, 1968.

18.

Platt, F. N. A new method of evaluating the effects of fatigue on driver performance. Human Factors, 1964, 6, 351–358.

19.

Safren, M. , Cohen, S. and Schlesinger, L. The drivometer as a measure of driving skill. Journal of Safety Research, 1970, 2, 30–35.

20.

Soliday, S. M. and Allen, J. A. Control responses of automobile drivers relative to type of highway and steering normally used. Chapel Hill, NC: University of North Carolina, Highway Safety Research Center, 1972.

21.

West, L. B. and Heimbach, C. L. Correlating instrumented car responses with certain geometric elements of highways and accidents utilising short section analysis. Highway Research Record, 1973, 461, 17–29.

22.

Winer, B. J. Statistical principles in experimental design. New York: McGraw--Hill, 1962.