Citation

Uno H, Hiramatsu K. JSAE Rev. 2000; 21(2): 219-224.

Copyright

(Copyright © 2000, Society of Automotive Engineers of Japan, Publisher Elsevier Publishing)

DOI

10.1016/S0389-4304(99)00093-4

PMID

unavailable

Abstract

This study proposes a procedure to quantitatively estimate auditory distractions that are not accompanied by any visual diversions to clarify the influence of non-visual distractions on driving. In a laboratory experiment, spare mental capacities (measured in bits/s) for three arithmetic tasks were estimated for each subject driver, using the functional relation between the reaction time and the number of alternatives in choice reaction tasks using a subsidiary task method. The spare capacities obtained correlated significantly with the measures of speed control and physiological load during a lane change course negotiation on a test field. We observed that the driving ability deteriorated when the capacity decreased to less than 6 or 7 bits/s.


Keywords: Driver distraction;