Variations in Naturalistic Driving Behavior and Visual Perception at the Entrances of Short, Medium, and Long Tunnels

Table 4

Statistical results for maximum saccade amplitude.

Maximum saccade amplitude (°)	Tunnel length condition			ANOVA result
	Short	Medium	Long	F(2,105)	value
Zone 10	27.9	30.4	27.1	0.564	0.571
Zone 9	19.5	23.9	33.4	10.672	0.000
Zone 8	23.5	20.0	21.0	1.015	0.366
Zone 7	12.7	15.2	14.6	0.838	0.435
Zone 6	11.3	13.8	13.3	1.100	0.337
Zone 5	5.8	12.5	12.1	12.980	0.000
Zone 4	5.2	7.5	7.5	3.854	0.024
Zone 3	4.7	6.8	7.0	4.270	0.016
Zone 2	4.1	6.3	5.9	4.343	0.015
Zone 1	4.9	5.9	6.6	2.032	0.136