Research on Joint Control of On-Ramp Metering and Mainline Speed Guidance in the Urban Expressway Based on MPC and Connected Vehicles

Table 1

Coefficient^a table.

	Model	Unnormalized coefficient		Standardization coefficient	t	Significant	Collinear statistics
		B	Standard error	Beta			Tolerance	VIF
1	(Constant)	591.634	142.612		4.149	0.000
	Occupancy	−29.744	7.537	−0.805	−3.946	0.001	0.091	3.033
	Mainline and ramp speed difference	1.625	2.186	0.152	1.743	0.043	0.091	2.043
	SVT	1.638	2.932	0.036	5.559	0.000	0.908	1.102
	SVD	0.877	1.168	0.046	3.740	0.003	0.960	1.042

^aDependent variable: number of serious conflicts.