Modeling Lane-Changing Behavior in Freeway Off-Ramp Areas from the Shanghai Naturalistic Driving Study

Table 2

Model estimation results.

Variable	Descriptions	Definitions		value
	The number of lane-changes required to be in the correct lane	or		<0.001
	The distance to the point where the driver needs to be off-ramp	unit: m	0.003	<0.001
	The front vehicle type on the right lane	heavy vehicles = 1; others = 0	1.802	<0.001
	Gap Time to the front vehicle in current lane			<0.001
	Gap Time to the front vehicle on the left lane		0.053	0.078
	Gap Time to the front vehicle on the right lane			0.002
	Number of observations		319
	log likelihood
	AIC		197.6

Note. that the variable is significant at 95% level. In China heavy vehicles cannot drive on fast lanes; thus only vehicle type on right-side was considered.