title: Evaluation of the critical value of driving fatigue based on the fuzzy sets theory.
abstract: Applying the newly developed multistage evaluation method based on the fuzzy sets theory, we have evaluated the sense of driving fatigue of 8 male drivers who covered 400 km in 8 hr in the daytime, empirically revealing the distribution of the degree of driving fatigue. The critical values from "no" to "a bit" and "a bit" to "fatigued" are 1 and 5.5 hr, respectively. Finally, a tentative study of the psychophysical relations between driving time and driving fatigue has been made, leading to a curve of driving fatigue under the conditions of this experiment.
authors: Department of Psychology, East China Normal University, Shanghai, People's Republic of China.
authors: C
authors: C
authors: He
authors: C
authors: C
authors: Zhao
mesh_terms: D000328:Adult; D001334:Automobile Driving; D002681:China; D005069:Evaluation Studies as Topic; D005221:Fatigue; D017143:Fuzzy Logic; D006801:Humans; D008297:Male; D008875:Middle Aged; D011601:Psychophysics; D013997:Time Factors