The Impact of Automated Vehicles on Traffic Flow and Road Capacity on Urban Road Networks

Table 1

Parameters for modelling AVs and HDVs.

Parameters			AVs	HDV
Car-following (Wiedemann 74)	Standstill distance (m)		0.5	1.5
	Headway time (s)		0.5
Lane change	Min. headway (m)		0.2	0.5
	Safety distance reduction factor (%)		30	60
	Cooperative lane change	Min. speed difference(km/h)	10	N/A
	Max. collision time (s)		10	N/A
Driver characteristics	Look ahead distance (m)	Min.	0	5
		Max.	500	100
	Look back distance (m)	Min.	0	5
		Max.	500	50
	Desired speed (km/h)	Lower bound	50	48
		Upper bound	50	58
	Driver errors (%)		0	10
Automated driving/platooning possible	Max. number of vehicles		7	N/A
	Max. desired speed (km/h)		50	N/A
	Max. distance for catching up to a platoon (m)		30	N/A
	Gap time (s)		0.2	N/A
	Minimum clearance (m)		2	N/A