Analysis and Detection of Road Traffic Accident Severity via Data Mining Techniques: Case Study Addis Ababa, Ethiopia

Table 1

Predicates and the number of different values of the predicate.

Predicates	Number of different values of the predicate
Driver’s age range	5
Sex	3
Educational level	7
Vehicle driver relation (vehicle ownership)	4
Driving experience	7
Type of junction	7
Road surface type	6
Light condition	4
Weather condition	9
Type of collision	10
Pedestrian movement	7
Vehicle movement	13
Cause of accident	20
Accident severity level	3