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

Table 3

Statistical results for the number of fixations.

Number of fixations	Tunnel length condition			ANOVA result
	Short	Medium	Long	F(2,105)	value
Zone 10	5.9	5.4	4.9	0.705	0.496
Zone 9	7.0	7.3	7.4	0.128	0.880
Zone 8	7.3	7.8	6.1	1.929	0.150
Zone 7	7.9	6.8	6.6	1.307	0.275
Zone 6	7.2	7.9	6.9	0.615	0.542
Zone 5	10.1	7.9	8.5	3.317	0.040
Zone 4	7.5	7.5	8.0	0.172	0.842
Zone 3	7.9	8.4	8.9	0.552	0.577
Zone 2	8.7	9.1	8.6	0.398	0.673
Zone 1	11.7	11.3	11.8	0.326	0.723