Modeling of Lateral Stability of Tractor-Semitrailer on Combined Alignments of Freeway

Table 8

Results of statistical analysis for cornering on upgrades and downgrades.

Road type	Independent variable			value
Curved upgrades	Constant	0.194	26.441	0.001
		0.015	63.064	0.001
		−0.013	−7.976	0.001
	Curved downgrades	Constant	0.022	2.635	0.015
		0.018	68.886	0.001
		−0.020	−11.326	0.001