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

Table 2

Relevant parameters and results of the -test.

Evaluation index	Parameter	Noncontrol	ALINEA	DB-RM	MDB-RM
Mean travel time of the mainstream	Mean ()	60.5	56.7	57.3	57.9
	Variance ()
	Sample size	52	52	52	52
	-statistic	−3.40	2.21	0.83	—
Mean travel time of on-ramp	Mean ()	167.3	173.2	154.2	152.5
	Variance ()
	Sample size	52	52	52	52
	-statistic	−3.83	−6.68	−0.58	—