A Density-Based Ramp Metering Model Considering Multilane Context in Urban Expressways

Table 1

Main output data of simulation.

Index	Noncontrol	ALINEA		DB-RM		MDB-RM
		Mean output	Change rate (%)	Mean output	Change rate (%)	Mean output	Change rate (%)
Mean speed of the mainstream (km/h)	30.6	33.5	9.48	32.9	7.52	33.1	8.17
Mean travel time of the mainstream (s)	60.5	56.7	−6.28	57.3	−5.29	57.9	−4.30
Mean travel time of on-ramp (s)	167.3	173.2	3.53	154.2	−7.83	152.5	−8.85
Mean vehicle delay of the mainstream (s)	24.7	22.5	−8.91	23.1	−6.48	22.9	−7.29
Mean vehicle delay of on-ramp (s)	85.4	95.6	11.94	81.2	−4.92	80.5	−5.74
Mean queue length of on-ramp (m)	107.3	117.5	9.51	93.5	−12.86	92.9	−13.42