@article{ref1,
title="Evaluation of the critical value of driving fatigue based on the fuzzy sets theory",
journal="Environmental research",
year="1993",
author="He, C. and Zhao, C.",
volume="61",
number="1",
pages="150-156",
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&quot;no&quot;to&quot;a bit&quot;and&quot;a bit&quot;to&quot;fatigued&quot;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.<p /> <p>Language: en</p>",
language="en",
issn="0013-9351",
doi="",
url="http://dx.doi.org/"
}