Table 1 Headway measurements of the... | Emerald Publishing

Table 1

Headway measurements of the three groups of drivers

Driver group	“Confident”					“Neutral”					“Cautious”
The mean of distance headways in manual mode (m)	23.51					42.76					66.32
Stimulus (m)	13	18	23	28	33	15	25	35	45	55	30	40	50	60	70
Frequency
(1) No discomfort	0	0	29	44	50	0	0	5	41	49	0	0	7	24	45
(2) Somewhat uncomfortable	1	48	20	6	0	1	1	43	9	0	1	36	43	26	5
(3) Very uncomfortable	49	2	1	0	0	49	49	2	0	1	49	14	0	0	0
Nr. of observations	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50
Threshold 1 in AV mode (m)	15.69					30.39					37.38
Threshold 2 in AV mode (m)	22.65					40.83					60.00

Driver group	“Confident”					“Neutral”					“Cautious”
The mean of distance headways in manual mode (m)	23.51					42.76					66.32
Stimulus (m)	13	18	23	28	33	15	25	35	45	55	30	40	50	60	70
Frequency
(1) No discomfort	0	0	29	44	50	0	0	5	41	49	0	0	7	24	45
(2) Somewhat uncomfortable	1	48	20	6	0	1	1	43	9	0	1	36	43	26	5
(3) Very uncomfortable	49	2	1	0	0	49	49	2	0	1	49	14	0	0	0
Nr. of observations	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50
Threshold 1 in AV mode (m)	15.69					30.39					37.38
Threshold 2 in AV mode (m)	22.65					40.83					60.00