Identifying Influencing Factors of Road Accidents in Emerging Road Accident Blackspots

Table 4

Accident-causing factors, frequency index, and ranking.

S. no.	Characteristics	Factors	Frequency index	Ranking
1	Traffic	V/C ratio	0.72	8
2	Road geometry	Ununiformed width of the carriageway	0.69	12
		Lack of sight distance	0.75	6
		Radius of curvature	0.63	16
		Gradient	0.21	27
		Super elevation	0.45	22
		Controlled intersection	0.32	24
		Uncontrolled intersection	0.89	3
		Lack of auxiliary lanes at the intersection	0.21	28
		Bridge approach	0.53	19
		Lack of footpath	0.83	4
3	Road characteristics	Skid resistance	0.72	9
		Roughness	0.43	23
		PSI	0.64	15
4	Street furniture	Traffic signs	0.59	18
		Road marking	0.53	20
5	Human factors	Age	0.69	13
		Male	0.72	10
		Female	0.32	25
		Drunk and driving	0.943	1
		Over speeding	0.92	2
6	Environmental factors	Rainy	0.68	14
		Sunny	0.52	21
		Day time	0.63	17
		Night time	0.74	7
7	Vehicle factors	Low-performance vehicle	0.72	11
		High-performance vehicle	0.12	29
		Brake failure	0.23	5
		Passenger vehicle	0.82	30
		Cargo vehicle	0.32	26