Monitoring Driving in a Monotonous Environment: Classification and Recognition of Driving Fatigue Based on Long Short-Term Memory Network

Table 2

Driving factor variable.

Scenario#1 (expressway)	Values and explanations	Percentage (%)			Average value	Standard deviation
		1	2	3
Gender	1- Male,	77.78	22.22	—	—	—
	2- Female
Age	1- (22-23) years,	44.44	50.00	5.56	23.78	1.44
	2- (24–26) years,
	3- (27-28) years
Nap habit	1- YES,	50.00	50.00	—	—	—
	2- No
Driving experience	1- (1-2) years,	44.44	38.89	16.67	2.67	1.37
	2- (3-4) years,
	3- (5-6) years
Scenario#2 (low-grade rural highway)	Values and explanations	Percentage (%)			Average value	Standard deviation
		1	2	3
Gender	1- Male	55.56	44.44	—	—	—
	2- Female
Age	1- (22-23) years,	66.67	27.77	5.56	23.50	1.50
	2- (24–26) years,
	3- (27-28) years
Nap habit	1- YES,	38.89	61.11	—	—	—
	2- No
Driving experience	1- (1-2) years,	50.00	27.78	22.22	2.72	1.48
	2- (3-4) years,
	3- (5-6) years

Note. — indicates that the value was not assigned with any meaning for the related indicator.