A Case Study in China to Determine Whether GPS Data and Derivative Indicator Can Be Used to Identify Risky Drivers

Table 5

Factor loading matrix.

Variables	Principal Component Analysis			Factor Analysis
	PC1	PC2	PC3	RC1	RC2	RC3
		0.776	0.477			0.908
	0.943			0.839	0.431
	0.946			0.865
	0.927			0.523	0.766
	0.89				0.715
	0.884			0.909
	0.808			0.63	0.529
	0.87			0.580
	0.499	-.432	0.61		0.880
		.899				0.858
	0.765		−.401	0.891
	0.70			0.485	0.567
Interpretation	Acceleration & deceleration	Speed	None	Acceleration	Deceleration	Speed

Note: Factor loading below .4 appears in blank for brevity, and factor loading in bold indicates strong correlation.