Influence of Lane Policies on Freeway Traffic Mixed with Manual and Connected and Autonomous Vehicles

Table 1

Notation of model parameters and variables.

Notion		Explanation	Unit
		Length of one cell	m
		Deterministic speed of MV at subsequent time step	Lcell/s
		Speed of MV at subsequent time step after stochastic deceleration	Lcell/s
		The speed at the current time step	Lcell/s
		Acceleration rate	Lcell/s^2
		Maximum speed	Lcell/s
		Anticipated space gap	Lcell
		Safe speed	Lcell/s
		Safety parameter to avoid accidents	s
		Safe headway of a MV following another MV	s
		Safe headway of a MV following a CAV	s
		Maximum deceleration rate	Lcell/s^2
		Maximum acceleration rate	Lcell/s^2
		Real space gap	Lcell
		Location at the current time step	Lcell
		Location of the preceding vehicle at the current time step	Lcell
		Length of a vehicle	Lcell
		The expected velocity of the preceding vehicle	Lcell/s
		Probability of stochastic deceleration	—
		Probability values of stochastic deceleration	—
		Randomization probability	—
		Deceleration under defensive states	Lcell/s^2
		Randomization deceleration	Lcell/s^2
		Effective safe time gap for MV	s
		The steepness of the logistic function pdefense	Lcell/s
		The midpoint of the logistic function pdefense	Lcell/s
		Location at subsequent time step	Lcell
		Deterministic speed of CAV at subsequent time step	Lcell/s
		Average speed of the preceding CAVs	Lcell/s
		Coefficient of ACC model	s^−2
		Coefficient of ACC model	s^−1
		Desired time headway between ACC-vehicle and the preceding vehicle	s
		Delay caused by communication and detection,	s
		Safe headway of a CAV following a MV	s
		Safe headway of a CAV following another CAV	s
		The space gap between the lane-changing vehicle and vehicle immediate ahead on the target lane	Lcell
		The space gap between the lane-changing vehicle and the immediate rear vehicle on the target lane	Lcell
		Speed of the vehicle immediately ahead on the target lane	Lcell/s
		Speed of the immediate rear vehicle on the target lane	Lcell/s
		Lane-changing probability	—