Discrimination of Effects between Directional and Nondirectional Information of Auditory Warning on Driving Behavior

Table 1

Results of discriminant analysis.

Variable	Classification function coefficient			Sig.
	No warning	Nondirectional warning	Directional warning
Brake reaction time	1.564	1.378	1.235	0.010^*
Deceleration	0.784	0.982	0.950	0.028^*
Crash rate	4.065	−0.415	−0.219	0.000^*
Constant	−6.114	−5.389	−4.804	—

The corresponding variable has significant difference on the variable among three groups (no warning, non-directional information or directional information) at the 0.05 significance level.