Citation

Sewell R, Perratt C. Transp. Res. Rec. 1975; 530: 31-45.

Copyright

(Copyright © 1975, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

This paper describes a real-time data acquisition system installed in a full-sized North American automobile for the study of driver performance in real traffic and under various conditions of driver stress. The basic parameters recorded are distance traveled and three primary control movements: steering wheel, accelerator, and brake. Provision is also made for vehicle yaw measurement, driver's pulse rate, and perceived illumination level in night-driving tasks. Other parameters may be recorded as dictated by project requirements. Test conditions and principal findings of the various projects carried out at the National Research Council of Canada during the past 3 years are discussed. In these projects, the frequency and magnitude of steering wheel movements have formed the basis for assessment of driver performance and task difficulty. The application of power spectral analysis techniques appears most promising, and it is in this context that the advantages of a system for highly flexible, real-time data acquisition are most apparent.

Language: en