Effectiveness and Optimal Location of Real-Time Traffic Conflict Risk Warning System for Rural Unsignalized Intersections: A Driving Simulation Study

Table 2

Correlation analysis data.

Evaluation index	Locations
	Pearson correlation	P-value (two-tailed)
Coefficient of speed variation	0.732	0.035
Jerk SD	−0.551	-0.009
Heart rate growth rate	0.734	0.025
The growth rate of EDA	−0.004	0.980
Angle entropy of steering wheel	−0.811	0.037
Maximum depression of the brake pedal	−0.308	0.039
Braking cycles	−0.540	0.049

Significant at 0.01 level (two-tailed). Significant at 0.05 level (two-tailed).