Effects of In-Vehicle Navigation on Perceptual Responses and Driving Behaviours of Drivers at Tunnel Entrances: A Naturalistic Driving Study

Table 3

Statistical results of the average duration of fixations.

	Control		In-vehicle navigation		P
	mean	sd	mean	sd
Zone 1	290.62	99.32	230.16	84.38	0.03
Zone 2	204.96	78.19	196.67	93.02	0.02
Zone 3	271.36	103.82	248.19	110.00	0.25
Zone 4	330.88	125.18	311.87	118.92	0.27