TY  - JOUR
PY  - 1998//
TI  - Analysis of drivers' behavior before and after crashes in simulated expressway driving to predict sleepiness levels for doze alarm activation
JO  - JSAE review
A1  - Numata, N.
A1  - Kitajima, H
A1  - Goi, Y
A1  - Yamamoto, Koichi
SP  - 269
EP  - 275
VL  - 19
IS  - 3
N2  - Sleepiness related behavior was analyzed in a simulated expressway. Long blinking and decrease of eye movement were observed in 9 out of 10 subjects. Prediction of sleepiness change by these characteristics was examined. Rate of long blinking accounted generally for changes of drivers' sleepiness (r=0.71). Furthermore, mean correlation coefficient increased by using standard deviation of horizontal eye movement in combination with rate of long blinking (r=0.75). Actually, a passenger can evaluate driver's sleepiness based on these behavioral characteristics synthetically. In the same way, the accuracy of sleepiness prediction was increased by using several indices.<p />
LA  - 
SN  - 0389-4304
UR  - http://dx.doi.org/10.1016/S0389-4304(98)00011-3
ID  - ref1
ER  -