A Hybrid Algorithm of Traffic Accident Data Mining on Cause Analysis

Table 4

Part of road traffic accidents attributes importance for comparative table.

Attribute	The average weight by expert	The degree of importance of associated regulation	The checking result; α = 0.025; t = 2.3646
Driving years	0.048	0.206	Zero difference
Road alignment	0.177	0.196	Zero difference
Weather	0.109	0.202	Zero difference
The safeguard types on roadside	0.071	0.204	Zero difference
Vehicle safety condition	0.196	0.193	Zero difference